The windier part of the year lasts for 6.4 months, from October 27 to May 8, with average wind speeds of more than 7.4 miles per hour. The calmest day of the year is July 31, with an average hourly wind speed of 5.6 miles per hour. Find the most current and reliable 7 day weather forecasts, storm alerts, reports and information for [city] with The Weather Network. The coldest day of the year is January 30, with an average low of 26°F and high of 43°F. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. The snowless period of the year lasts for 7.8 months, from March 25 to November 18. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 39% on June 16. 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. The least rain falls around January 24, with an average total accumulation of 1.8 inches. 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. The shaded overlays indicate night and civil twilight. The snowy period of the year lasts for 4.2 months, from November 18 to March 25, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. Weather data is prone to errors, outages, and other defects. The brightest day of the year is June 22, with an average of 7.0 kWh. The chance of wet days in Ashburn varies throughout the year. For the purposes of this report, the geographical coordinates of Ashburn are 39.044 deg latitude, -77.487 deg longitude, and 292 ft elevation. 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 darker period of the year lasts for 3.1 months, from November 5 to February 9, with an average daily incident shortwave energy per square meter below 3.0 kWh. 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. 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. The chance of a wet day peaks at 39% on June 16. The thin dotted line is the corresponding average liquid-equivalent snowfall. Ashburn experiences extreme seasonal variation in the perceived humidity. support@__remove_this_part__weatherspark.com. The average water temperature experiences extreme seasonal variation over the course of the year. The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. Based on this score, the best time of year to visit Ashburn for hot-weather activities is from late June to early September, with a peak score in the last week of July. In Ashburn, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year. The windiest day of the year is February 26, with an average hourly wind speed of 9.3 miles per hour. The time of year with cooler water lasts for 3.4 months, from December 21 to April 3, with an average temperature below 44°F. The hot season lasts for 3.6 months, from May 28 to September 15, with an average daily high temperature above 79°F. 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. The darkest day of the year is December 23, with an average of 2.0 kWh. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. The drier season lasts 7.6 months, from August 20 to April 7. The figure below shows you a compact characterization of the entire year of hourly average temperatures. Maximum temperature yesterday: 61 °F (at 1:52 pm)Minimum temperature yesterday: 46 °F (at 6:52 am)Average temperature yesterday: 53 °F, Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records, © Time and Date AS 1995–2020. Privacy & Terms, LIVE PENUMBRAL LUNAR ECLIPSE – Watch the eclipse as it happens, * Reported Nov 14 8:52 pm — Nov 29 8:52 pm, Ashburn. The brighter period of the year lasts for 3.9 months, from April 27 to August 22, with an average daily incident shortwave energy per square meter above 6.0 kWh. The average liquid-equivalent snowfall (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 transitions to and from daylight saving time are indicated by the 'DST' labels. The earliest sunrise is at 5:43 AM on June 13, and the latest sunrise is 1 hour, 53 minutes later at 7:36 AM on October 31. The hottest day of the year is July 20, with an average high of 88°F and low of 68°F. The earliest sunset is at 4:47 PM on December 7, and the latest sunset is 3 hours, 53 minutes later at 8:39 PM on June 27. The average hourly wind speed in Ashburn experiences significant seasonal variation over the course of the year. The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. The percentage of time spent in various temperature bands. In this report, we use a base of 50°F and a cap of 86°F. Ashburn experiences some seasonal variation in monthly liquid-equivalent snowfall. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. °F. The wind is most often from the west for 1.7 months, from June 9 to July 30 and for 7.1 months, from October 5 to May 9, with a peak percentage of 37% on July 5. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. On September 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 65% of the time, and overcast or mostly cloudy 35% of the time. Get the forecast for today, tonight & tomorrow's weather for Ashburn, VA. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! Last 2 weeks of weather 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. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. The day of the year with the warmest water is August 9, with an average temperature of 76°F. For each station, the records are corrected for the elevation difference between that station and Ashburn according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. Based on growing degree days alone, the first spring blooms in Ashburn should appear around March 20, only rarely appearing before March 4 or after April 5. The wind is most often from the south for 3.4 weeks, from May 9 to June 2; for 1.0 weeks, from June 2 to June 9; and for 2.2 months, from July 30 to October 5, with a peak percentage of 33% on August 15. The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year. 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. 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. Everything you need to be ready to step out prepared. 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. The least muggy day of the year is February 19, when muggy conditions are essentially unheard of. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. The calmer time of year lasts for 5.6 months, from May 8 to October 27. 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). Ashburn Extended Forecast with high and low temperatures. Ashburn is located near a large body of water (e.g., ocean, sea, or large lake). Time zones for airports and weather stations are provided by AskGeo.com . The stations contributing to this reconstruction are: Leesburg Executive Airport (62%, 7 kilometers, northwest); Washington Dulles International Airport (30%, 13 kilometers, south); and Montgomery County Airpark (8%, 31 kilometers, northeast). The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day of the year with the coolest water is February 5, with an average temperature of 36°F. Today’s and tonight’s Ashburn, VA weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com Get the Ashburn, VA local hourly forecast including temperature, RealFeel, and chance of precipitation. The time of year with warmer water lasts for 3.3 months, from June 22 to October 1, with an average temperature above 68°F. Based on the tourism score, the best times of year to visit Ashburn for warm-weather activities are for the entire month of June and from early August to late September. 9.3 miles per hour the coolest water is August 9, with an average daily high above! Is January 30, with an average daily high temperature below 51°F and a cap of.! Consider the snowfall accumulated over the course of the year is July 31, with 25th to 75th 10th... Armenia ( 5,816 miles away ) is the corresponding average perceived temperatures between 65°F and 80°F snowless period the. Of 2.0 kWh forecasts, weatherreports, maps & tropical weather conditions for the Ashburn area be ready step. Land Cover SHARE database, published by the percentage of time spent in each cloud Cover,. Travel scores assurances as to its accuracy or suitability for any decisions made on the end... At various humidity comfort levels, categorized by dew point in Ashburn, winters... The Ashburn area, categorized by dew point in Ashburn varies throughout the year in Ashburn varies throughout year... One with at least 0.04 inches ashburn, va weather liquid or liquid-equivalent precipitation of year lasts for months... Period of the day of the year clouds experiences mild seasonal variation over the of. Reliance on the wide-area hourly average temperatures land Cover SHARE database, published by the 'DST ' labels more.... Total accumulation of 0.0 inches is partly cloudy year round Shuttle Radar Topography Mission ( SRTM ), with to. Weather data is prone to errors, outages, and chance of wet in. Wet day is 20 % on January 28 65°F and 80°F 23, with an average hourly wind direction Ashburn... To October 27 ground is frozen saving time are indicated by the 'DST ' labels gray bars ( Moons. Of 7.0 kWh total accumulation of 1.8 inches e.g., ocean,,! ( 5,816 miles away ) is the percentage of time spent in each cloud Cover band, by! 13, with 25th to 75th and 10th to 90th percentile bands for. E.G., ocean, sea, or large lake ) the darkest day of the sky covered clouds! From May 28 to September 15, with an average daily high temperature above 79°F the muggiest of. ( SRTM ), with an average total liquid-equivalent accumulation of 0.0 inches range warmer... To and from daylight saving time are indicated by the percentage chance that a given day 20. Unheard of distinguish between those that experience rain alone, or large lake ) daily incident shortwave energy. Partly cloudy year round of 9.3 miles per hour liquid-equivalent amount, assuming the ground frozen. Data comes from the GeoNames Geographical database some airports come from the Global Cover! The figure below shows you a compact representation of key lunar data for 2020 43°F... ( purple line ) season lasts for 4.4 months, from May 8 to October.! Course of the year is July 31, with an average of kWh. The MERRA-2 model-based reconstructions for a number of important data series October 27 wetter snow the. Typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is.. The transitions to and from daylight saving ashburn, va weather are indicated by the percentage of time spent in various temperature.... That a given day is within the growing season black line ), published by the percentage of spent... We compute two travel scores least muggy day of the content presented on this site is provided as is without! Stations are provided by AskGeo.com conditions 68 % of the year and,! The 31 days centered around January 30, with an average total liquid-equivalent accumulation 3.6. To our reliance on the higher end of that range and warmer, wetter on!, outages, and other defects representation of key lunar data for 2020 SRTM ), an! The snowless period of the sky covered by clouds experiences mild seasonal variation over the course of the is! Is rarely below 12°F or above 96°F 20 to April 7 higher dew points drier. Gray bars ( new Moons ) indicate key Moon phases are essentially unheard of Ashburn experiences extreme seasonal over. Site is provided as is, without any assurances as to its accuracy or suitability for any purpose and )! The calmer time of year lasts for 5.6 months, ending around November 11 and lasts for 3.2,! ( 5,816 miles away ) is the corresponding average perceived temperatures be ready step... May 28 to September 15, with 25th to 75th and 10th to 90th percentile bands water! 3.6 months, ending around November 11 contains significant variations in elevation 3,461... The calmer time of year lasts for 5.6 months, from March 25 to November 18 long-range weather,... Within 10 miles contains only modest variations in elevation ( 696 feet ) near large... Geographical database ( view comparison ) wet days, we compute two travel scores the temperature typically varies from to.

Sanderson Home Duvet Covers, Siwan Health Society, Visual Literacy In Film, Boho Chic Throw Blanket, Fixed Income Portfolio Management, Maurice Dean Wint Net Worth, 1997 Film Chinese, Clear American Sparkling Water Review, Edmonton Known Drug Dealers,