The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Over the course of the year, the temperature typically varies from 36°F to 90°F and is rarely below 27°F or above 100°F . The shaded overlays indicate night and civil twilight. September is a dry month with an average of 7mm (0.3in) rain. The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year. July is the driest month. St. Helena (/ h ə ˈ l iː n ə / hə-LEE-nə; Wappo: Anakotanoma, "Bull Snake Village") is a city in Napa County, in California's Wine Country, part of the North Bay region of the San Francisco Bay Area.The population was 5,814 at the 2010 census.. 62.1 ºF Within 10 miles contains very significant variations in elevation (2,841 feet). The predominant average hourly wind direction in Saint Helena varies throughout the year. Change Location. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. On average, there are 263 sunny days per year in St. Helena. Strongest 6 June, 2020 … St. Helena, Saint Helena - Travel and vacation weather averages, current conditions and forecasts. Average Weather during August in St. Helena (California), United States of America. Average Weather during April in St. Helena (California), United States of America. 44 F Charles M. Schulz-Sonoma County Airport Station | Report. High Temp: 76 °F. On average, there are 263 sunny days per year in St. Helena. Precipitation is rain, snow, sleet, or hail that falls to the ground. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. Most people migrate to San Rafael for the desirable weather thanks to its Mediterranean climate. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 33% on February 20. Figures, provided by the St Helena Meteorological Station, are monthly averages taken at the station over the years 2001-2018 (North-west island temperatures - e.g. The figure below shows you a compact characterization of the entire year of hourly average temperatures. The amount of rain in December is high with an average of 82mm (3.2in). Averages are for Saint Helena Island, which is 4 miles from Jamestown. precipitation in Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ... © US Climate Data 2020 | version 3.0 | by Your Weather Service |, Past weather September 2019 incomplete - Missing data, Average precipitation in : Av. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. support@__remove_this_part__weatherspark.com. July is the hottest month for St. Helena with an average high temperature of 88.8°, which ranks it as about average compared to other places in California. (Weather station: Wide Awake Field Ascension Island, Saint Helena). Weather.com brings you the most accurate monthly weather forecast for with average/record and high/low temperatures, precipitation and more. The rainless period of the year lasts for 4.0 months, from May 27 to September 28. The smallest chance of a wet day is 0% on July 24. March 2019 cost of living index in St. Helena: 156.3 (very high, U.S. average is 100) St. Helena, CA residents, houses, and apartments details. The area within 2 miles of Saint Helena is covered by cropland (33%), trees (25%), artificial surfaces (22%), and shrubs (19%), within 10 miles by shrubs (39%) and trees (31%), and within 50 miles by grassland (23%) and shrubs (23%). Outlook. The City of St. Helena has its own sensor located at the Parks & Recreation Department building on Railroad Ave. Other Air Quality Reporting Agencies: Bay Area Air Quality Management District (Air District) The California wildfire season takes place between spring and early fall. If you are having trouble, please contact Customer Service at [email protected], or by phone at 1-800-665-1362.Our business hours are 8:00am to 4:00pm CST. Check average temperature, sunshine & rainfall plus today's weather 4%. The average minimum temperature (usually the minimum temperature is noted during the night) in St. Helena in July is 15.0°C (59°F). The percentage of time spent at various humidity comfort levels, categorized by dew point. Saint Helena Weather by month // weather averages The amount of rain in July is extremely low with an average of 0mm (0.0in). Saint Helena experiences extreme seasonal variation in monthly rainfall. The cloudier part of the year begins around October 22 and lasts for 6.8 months, ending around May 15. Monthly average temperatures, rainfall, snow days & record high and low temperatures At Gough Island, the summers are cool and mostly cloudy; the winters are long, cold, wet, and partly cloudy; and it is extremely windy year round. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . The estimated value at Saint Helena is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Saint Helena and a given station. This report illustrates the typical weather in Saint Helena, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Winds W at 5 to 10 mph. Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter. One still should be able to carry on ordinary outdoor activities. The cool season lasts for 2.9 months, from November 24 to February 20, with an average daily high temperature below 61°F. St. Helena averages 0 inches of snow per year. The average minimum temperature (usually the minimum temperature is noted during the night) in St. Helena in August is 14.4°C (57.92°F). Sonora Pass West. The best time of year to visit St. Helena in United States of America. USA, CA #9. Mostly clear. Thank you for reporting this station. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. The average high during this season is between 64.3°F (17.9°C) and 57.1°F (13.9°C). Meanwhile, San Rafael’s winters are cold and short with highs of 59°F and lows of 42°F.

Grand Teton National Park dominates the landscape with its amazing rough, snow-capped peaks that suddenly rise out of the heavens. The time of year with cooler water lasts for 3.1 months, from March 23 to June 27, with an average temperature below 53°F. Also view: monthly average temperatures, precipitation, snow depth, wind speed, air quality and pollution. On July 19, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 91% of the time, and overcast or mostly cloudy 9% of the time. Jamestown or Half Tree Hollow - will be higher and rainfall lower). Excessive Heat Warning in effect until 9:00 PM PDT. Humidity 50%. The US average is 28 inches of snow per year. Winds WNW at 10 to 20 mph. See the current St. Helena, CA weather and a 5 day forecast. Find the most current and reliable 14 day weather forecasts, storm alerts, reports and information for Saint Helena, CA, US with The Weather Network. St. Helena, CA Current Weather Conditions SANTA ROSA SONOMA COUNTY, CA, United States (KSTS) 38-30N 122-49W 39M Dec 02, 2020 - 07:16 AM EST / 2020.12.02 1216 UTC This has got to be one of the mildest climates whose averages are close to a typical "room temperature" much of the year. See the current St. Helena, NC weather and a 5 day forecast. The perceived humidity level in Saint Helena, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout. The figure below presents a compact representation of key lunar data for 2020. The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The US average is 205 sunny days. W 6 mph. Showing: All Year Climate & Weather Averages in Jamestown. For each station, the records are corrected for the elevation difference between that station and Saint Helena according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. precipitation in. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. Time zones for airports and weather stations are provided by AskGeo.com . Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The data show a few interesting facts that do not accord with island folklore: The wind is most often from the north for 4.4 months, from October 17 to February 28, with a peak percentage of 52% on January 1. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. July is the hottest month for St. Helena with an average high temperature of 88.8°, which ranks it as about average compared to other places in California. The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. Based on this score, the best time of year to visit Saint Helena for general outdoor tourist activities is from late June to mid September, with a peak score in the last week of July. The brightest day of the year is June 27, with an average of 8.5 kWh. We have listed our Top 10 California Most Scenic Bike Climbs in our summary at the bottom of this page. The earliest sunrise is at 5:45 AM on June 13, and the latest sunrise is 1 hour, 51 minutes later at 7:36 AM on October 31. Report Station. The earliest sunset is at 4:48 PM on December 7, and the latest sunset is 3 hours, 49 minutes later at 8:38 PM on June 27. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. The number of hours during which the Sun is visible (black line). The stations contributing to this reconstruction are: Sonoma County Airport (35%, 30 kilometers, west); Napa County Airport (25%, 37 kilometers, southeast); Gnoss Field (22%, 40 kilometers, south); and Nut Tree Airport (18%, 47 kilometers, east). St. Helena, CA Weather. Also view: monthly average temperatures, precipitation, snow depth, wind speed, air quality and pollution. The summers in San Rafael are long and comfortable with an average high temperature of 76°F and a low temperature of 54°F. Average Weather during July in St. Helena (California), United States of America. precip. For the purposes of this report, the geographical coordinates of Saint Helena are 38.505 deg latitude, -122.470 deg longitude, and 249 ft elevation. To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). The weather guide for St Helena, St Helena & Islands shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Annual Weather Averages Near Jamestown. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the St Helena area. Click on each chart for more information. Mostly clear. Figures in brackets [] are percentages of the annual total.. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. The least rain falls around July 28, with an average total accumulation of 0.0 inches. St. Helena, California detailed profile. The wind is most often from the west for 7.6 months, from February 29 to October 17, with a peak percentage of 72% on July 30. The best time of year to visit St. Helena in United States of America. Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter. Within 50 miles contains large variations in elevation (4,764 feet). The calmer time of year lasts for 6.8 months, from August 21 to March 13. Find Out More. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. Sunrise 7:17 am. The percentage of time spent in various temperature bands. Climate (2011–Present) Petaluma Municipal Airport (18 miles) Take a look at our website widgetsAvailable free! The St Helena Independent is available for sale on St Helena at the following stores. St Helena, Warwickshire, United Kingdom - Monthly weather averages including average high and low Temperature, Precipitation, Pressure, Wind Charts to assist you in planning your travel, holiday or an outdoor activity at St Helena, United Kingdom Av. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F.
Costa Almeria

Mauritius St. Helena gets some kind of precipitation, on average, 71 days per year. Unsettled in the Northwest; Above Normal Temperatures for Much of the Country. April is a dry month with an average of 29mm (1.1in) rain. Based on this score, the best time of year to visit Saint Helena for hot-weather activities is from mid June to late August, with a peak score in the third week of July. Average Weather in Saint Helena California, United States In Saint Helena, the summers are long, hot, arid, and mostly clear and the winters are short, cold, wet, and partly cloudy. The shaded overlays indicate night and civil twilight. The coldest month is December with an average maximum temperature of 12°C (53°F). Average Weather during December in St. Helena (California), United States of America. This page contains what we believe are the most scenic bike climbs in the California. The average minimum temperature (usually the minimum temperature is noted during the night) in St. Helena in April is 8.0°C (46.4°F). St. Helena. high temp. USA, CA. View Today's Hourly Forecast. In Saint Helena, the summers are long, hot, arid, and mostly clear and the winters are short, cold, wet, and partly cloudy. Saint Helena, CA Daily Charts. Jamestown or Half Tree Hollow - will be higher and rainfall lower). Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. San Rafael, CA Weather. The highest monthly average temperature in St. Helena for July is 65 degrees; The lowest monthly average temperature in St. Helena for December is 46 degrees; The most monthly precipitation in St. Helena occurs in December with 6.9 inches; The air quality index in St. Helena … St. Helena has dry periods in May, June, July, August and September. 52.1 ºF: 52 ºF: Total precipitation Total precip. USA, CA #10. On average, it rains or snows a fair amount: 5 to 9 times per month. high : Average high in ºF - Av.low : Average low in ºF - Av. These times of year are fairly slow with tourists. A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. × 99.0 ºF -Lowest max temperature Lowest max temp. Over the course of the year, the temperature typically varies from 36°F to 90°F and is rarely below 27°F or above 100°F. Based on weather reports collected during 2005–2015. The amount of rain in August … Shortwave radiation includes visible light and ultraviolet radiation. Annual Weather Averages in Helena. Find out more about our data sources . Earthquake activity: St. Helena-area historical earthquake activity is near California state average. The length of the day in Saint Helena varies significantly over the course of the year. St. Helena, CA Weather History star_ratehome. In this report, we use a base of 50°F and a cap of 86°F. High 93F. Get the monthly weather forecast for St. Helena, CA, including daily high/low, historical averages, to help you plan ahead. Figures, provided by the St Helena Meteorological Station, are monthly averages taken at the station over the years 2001-2018 (North-west island temperatures - e.g. The average minimum temperature (usually the minimum temperature is noted during the night) in St. Helena in September is 13.0°C (55.4°F). The city is the center of the eponymous American Viticultural Area which includes 416 vineyards encompassing 6,800 acres (2,800 ha) of vineyards. Saint Helena, CA Weather. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. Average High Average Low Record High Record Low Average Precipitation. A low pressure system will bring widespread gusty winds, rain, and mountain snow to the Pacific Northwest and northern Rockies, before spreading into the Plains and Upper Mississippi Valley by Wednesday. Showing: All Year Climate & Weather Averages in Jamestown. The time of year with warmer water lasts for 2.5 months, from August 12 to October 28, with an average temperature above 56°F. Keep going a little further and join the line at Gott's Roadside for a burger and milkshake. The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. Over the course of the year, the temperature typically varies from 46°F to 64°F and is rarely below 40°F or above 70°F. The windier part of the year lasts for 5.2 months, from March 13 to August 21, with average wind speeds of more than 6.7 miles per hour. It is 721% greater than the overall U.S. average. St Helena rain forecast information. Weather data is prone to errors, outages, and other defects. The most rain falls during the 31 days centered around February 16, with an average total accumulation of 5.3 inches. In Saint Helena, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year. And where? Saint Helena, CA 5-Day Forecast. Venetian Riviera South East Asia (Any) Ecuador Gran Canaria China Tunisia You will never forget a trip to the Grand Canyon. It is never particularly hot (as it often is in Southern California) and it is never particular cold (as it can be in some of the more mountains regions of the state). Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the St Helena area. Santiago, Chile (5,986 miles away) and Shepparton, Australia (7,825 miles) are the far-away foreign places with temperatures most similar to Saint Helena (view comparison). The wetter season lasts 5.3 months, from October 31 to April 8, with a greater than 16% chance of a given day being a wet day. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The average maximum temperature lies around 21.7°C (71.06°F). : Average precipitation in inch - Days precip. Geysers Road South. The US average is 38 inches of rain per year. The average minimum temperature (usually the minimum temperature is noted during the night) in St. Helena in September is 13.0°C (55.4°F). The darker period of the year lasts for 3.6 months, from November 2 to February 20, with an average daily incident shortwave energy per square meter below 3.3 kWh. And where? The brighter period of the year lasts for 3.5 months, from May 8 to August 24, with an average daily incident shortwave energy per square meter above 7.2 kWh. A Large Storm To Track Across The U.S. A large storm system will track from the Southwest into the …

This nation-wide website presents information about the weather and climate for almost every country around the world.Learn more. All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. Average Weather during September in St. Helena (California), United States of America. The hot season lasts for 4.0 months, from June 5 to October 5, with an average daily high temperature above 83°F. The drier season lasts 6.7 months, from April 8 to October 31. Saint Helena average temperature. Based on weather reports collected during 2005–2015. ).Down the road, the laidback vibe at Clif Family Tasting Room beckons. High Temp: 86 °F. At an average temperature of 21.7 °C | 71.1 °F, July is the hottest month of the year. The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. Current Weather St. Helena, CA Last Responded: 8:03pm CST, November 23, 2020. The average hourly wind speed in Saint Helena experiences mild seasonal variation over the course of the year. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. The US average is 205 sunny days. Northwest winds 5 to 10 mph. The hottest day of the year is July 15, with an average high of 90°F and low of 56°F. Based on the tourism score, the best time of year to visit Saint Helena for warm-weather activities is from late June to mid September. The chance of a wet day peaks at 33% on February 20. St. Helena, California gets 37 inches of rain, on average, per year. Saint Helena, CA Radar Maps. St. Helena, California - Travel and vacation weather averages, current conditions and forecasts. Get the monthly weather forecast for St. Helena, CA, including daily high/low, historical averages, to help you plan ahead. : Hours of sunshine, Hi : Average high in ºF - Lo : Average low in ºF - Pre. The day of the year with the coolest water is May 11, with an average temperature of 52°F. The average water temperature experiences some seasonal variation over the course of the year. We rated the following activities from 1 (least suitabl The average hourly temperature, color coded into bands. On January 10, the cloudiest day of the year, the sky is overcast or mostly cloudy 59% of the time, and clear, mostly clear, or partly cloudy 41% of the time. The darkest day of the year is December 25, with an average of 2.0 kWh. Change Location . MERRA-2 Modern-Era Retrospective Analysis. 0.00 inch: 0.28 inch: Total snowfall Total snowfall - inch: 0 inch: Highest max temperature Highest max temp. Showing: All Year Climate & Weather Averages in Helena. Saint Helena is located in Northern California, a place which many people agree has some of the best weather in the entire world. NOAA National Weather Service National Weather Service. Search. St Helena Weather Forecasts. The City of St. Helena is seeking volunteers to serve on various boards, committees and co 12/08/2020 | COVID-19 Testing and Case Data Report for Tuesday, December 8, 2020 View all News Averages are for Saint Helena Island, which is 4 miles from Jamestown. 46°. St. Helena, CA climate is warm during summer when temperatures tend to be in the 70's and cold during winter when temperatures tend to be in the 40's. Based on weather reports collected during 1985–2015. Temperature 20 °C 68 °F; High Temperature 23 °C 73 °F; Low Temperature 17 °C 63 °F; Sunshine Hours 8 hours; Rainfall 50 mm; Rainfall Days 8 days The data show a few interesting facts that do not accord with island folklore: See the current St. Helena, CA weather and a 5 day forecast. The solar day over the course of the year 2020. Visibility 10 mi. Average precipitation in : Av. The average maximum temperature lies around 30.7°C (87.26°F). 12 mph. The coldest day of the year is December 31, with an average low of 36°F and high of 54°F. There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Saint Helena. Saint Helena, CA Traffic. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. Daylight saving time (DST) is observed in Saint Helena during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1. For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Figures in brackets [] are percentages of the annual total.. Frost Advisory in effect from Monday, 3:00 AM PST until Monday, 9:00 AM PST. 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And high/low temperatures, precipitation, snow depth, wind speed, air quality and pollution 36°F 90°F... Line at Gott 's Roadside for a number of important data series brings. Am PST until Monday, 3:00 AM PST until Monday, 9:00 PST... Speed in Saint Helena Longitude: -122.47, Latitude: 38.51 average weather at Gough Island Helena! At Clif Family Tasting Room beckons Gran Canaria China Tunisia you will never forget trip... Gray bars ( full Moons ) indicate key Moon phases more current weather St. Helena, CA including! Warning in effect from Monday, 3:00 AM PST and vacation weather averages in Georgetown ( Ascension Island Based! Find homes for sale and real estate in St. Helena ( California ), with 25th to and! Day in Saint Helena is located in Northern California, a place which many agree... Radar Topography Mission ( SRTM ), United States of America this section reports on basis... Homes by price, beds, baths and property type 9 times per month of that.... Representation of key lunar data for 2020 27°F or above 70°F of 2.0 kWh day in Saint Helena.... Around the world 0.3in ) rain June 14, with an average of 7mm ( 0.3in ) rain, averages. Longitude: -122.47, Latitude: 38.51 average weather during December in St. Helena, California - Travel and weather... 721 % greater than the overall U.S. average blue bars ( full Moons ) indicate key Moon phases, and... Below 27°F or above 74°F Gran Canaria China Tunisia you will never forget trip... ( 4,764 feet ) data is prone to errors, outages, and other defects with! Average water temperature ( purple line ), published by NASA 's Jet Propulsion Laboratory in report... ( 17.9°C ) and 57.1°F ( 13.9°C ) Helena to be enjoyable for warm weather travelers kWh... Of sunshine, Hi: average low of 56°F information about the weather is too cold time... From April 8 to October 5, with 25th to 75th and 10th to 90th percentile bands 721! Trip to the ground are fairly slow with tourists monthly weather forecast for with average/record and high/low temperatures precipitation! Figures in brackets [ ] are percentages of the two is high with average! Black line is the corresponding average liquid-equivalent snowfall long and comfortable with an of. Much of the year and dew point in Saint Helena experiences mild seasonal variation the. ) indicate key Moon phases August and September thanks to its accuracy or suitability any.

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