Climate and Average Weather Year Round at Washington Executive Airport/Hyde Field United StatesAt Washington Executive Airport/Hyde Field, the summers are warm and humid, the winters are very cold and snowy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 28°F to 88°F and is rarely below 15°F or above 96°F. Based on the tourism score, the best times of year to visit Washington Executive Airport/Hyde Field for warm-weather activities are for the entire month of June and from early August to early October. Average Temperature at Washington Executive Airport/Hyde FieldThe hot season lasts for 3.5 months, from May 30 to September 14, with an average daily high temperature above 79°F. The hottest month of the year at Washington Executive Airport/Hyde Field is July, with an average high of 87°F and low of 69°F. The cold season lasts for 3.1 months, from December 1 to March 3, with an average daily high temperature below 52°F. The coldest month of the year at Washington Executive Airport/Hyde Field is January, with an average low of 28°F and high of 43°F.
The figure below shows you a compact characterization of the entire year of hourly average temperatures. 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. Bagratashen, Armenia (5,812 miles away) is the far-away foreign place with temperatures most similar to Washington Executive Airport/Hyde Field (view comparison). CloudsAt Washington Executive Airport/Hyde Field, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year. The clearer part of the year at Washington Executive Airport/Hyde Field begins around July 4 and lasts for 4.3 months, ending around November 14. The clearest month of the year at Washington Executive Airport/Hyde Field is September, during which on average the sky is clear, mostly clear, or partly cloudy 64% of the time. The cloudier part of the year begins around November 14 and lasts for 7.7 months, ending around July 4. The cloudiest month of the year at Washington Executive Airport/Hyde Field is January, during which on average the sky is overcast or mostly cloudy 51% of the time.
PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Washington Executive Airport/Hyde Field varies throughout the year. The wetter season lasts 3.9 months, from April 26 to August 23, with a greater than 30% chance of a given day being a wet day. The month with the most wet days at Washington Executive Airport/Hyde Field is July, with an average of 11.8 days with at least 0.04 inches of precipitation. The drier season lasts 8.1 months, from August 23 to April 26. The month with the fewest wet days at Washington Executive Airport/Hyde Field is October, with an average of 6.9 days with at least 0.04 inches of precipitation. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone at Washington Executive Airport/Hyde Field is July, with an average of 11.8 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 40% on July 12.
RainfallTo 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. Washington Executive Airport/Hyde Field experiences some seasonal variation in monthly rainfall. Rain falls throughout the year at Washington Executive Airport/Hyde Field. The month with the most rain at Washington Executive Airport/Hyde Field is May, with an average rainfall of 3.5 inches. The month with the least rain at Washington Executive Airport/Hyde Field is January, with an average rainfall of 2.0 inches.
SnowfallAs with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Washington Executive Airport/Hyde Field experiences significant seasonal variation in monthly snowfall. The snowy period of the year lasts for 4.1 months, from November 20 to March 24, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow at Washington Executive Airport/Hyde Field is February, with an average snowfall of 6.2 inches. The snowless period of the year lasts for 7.9 months, from March 24 to November 20. The least snow falls around July 20, with an average total accumulation of 0.0 inches.
SunThe length of the day at Washington Executive Airport/Hyde Field varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 27 minutes of daylight; the longest day is June 20, with 14 hours, 53 minutes of daylight.
The earliest sunrise is at 5:42 AM on June 13, and the latest sunrise is 1 hour, 54 minutes later at 7:36 AM on November 2. The earliest sunset is at 4:45 PM on December 7, and the latest sunset is 3 hours, 51 minutes later at 8:36 PM on June 27. Daylight saving time (DST) is observed at Washington Executive Airport/Hyde Field during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3. The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation. MoonThe figure below presents a compact representation of key lunar data for 2024. 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 vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. HumidityWe base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. 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. Washington Executive Airport/Hyde Field experiences extreme seasonal variation in the perceived humidity. The muggier period of the year lasts for 4.1 months, from May 22 to September 26, during which time the comfort level is muggy, oppressive, or miserable at least 16% of the time. The month with the most muggy days at Washington Executive Airport/Hyde Field is July, with 18.7 days that are muggy or worse. The month with the fewest muggy days at Washington Executive Airport/Hyde Field is February, with 0.0 days that are muggy or worse.
WindThis section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. 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. The average hourly wind speed at Washington Executive Airport/Hyde Field experiences significant seasonal variation over the course of the year. The windier part of the year lasts for 6.7 months, from October 17 to May 7, with average wind speeds of more than 7.4 miles per hour. The windiest month of the year at Washington Executive Airport/Hyde Field is February, with an average hourly wind speed of 9.0 miles per hour. The calmer time of year lasts for 5.3 months, from May 7 to October 17. The calmest month of the year at Washington Executive Airport/Hyde Field is July, with an average hourly wind speed of 5.6 miles per hour.
The predominant average hourly wind direction at Washington Executive Airport/Hyde Field varies throughout the year. The wind is most often from the north for 1.1 months, from February 29 to April 1, with a peak percentage of 32% on March 9. The wind is most often from the south for 5.0 days, from April 1 to April 6; for 2.8 months, from April 9 to July 2; and for 3.2 months, from July 17 to October 24, with a peak percentage of 35% on August 1. The wind is most often from the west for 3.0 days, from April 6 to April 9; for 2.1 weeks, from July 2 to July 17; and for 4.1 months, from October 24 to February 28, with a peak percentage of 34% on July 7. Water TemperatureWashington Executive Airport/Hyde Field is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water. The average water temperature experiences extreme seasonal variation over the course of the year. The time of year with warmer water lasts for 3.3 months, from June 22 to October 1, with an average temperature above 69°F. The month of the year at Washington Executive Airport/Hyde Field with the warmest water is August, with an average temperature of 77°F. The time of year with cooler water lasts for 3.5 months, from December 19 to April 4, with an average temperature below 44°F. The month of the year at Washington Executive Airport/Hyde Field with the coolest water is February, with an average temperature of 36°F.
Best Time of Year to VisitTo characterize how pleasant the weather is at Washington Executive Airport/Hyde Field throughout the year, we compute two travel scores. The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Washington Executive Airport/Hyde Field for general outdoor tourist activities are for the entire month of June and from early August to early October, with a peak score in the first week of September. Tourism Score at Washington Executive Airport/Hyde FieldThe beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Washington Executive Airport/Hyde Field for hot-weather activities is from late June to early September, with a peak score in the last week of July. Beach/Pool Score at Washington Executive Airport/Hyde FieldMethodologyFor 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. 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. 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. 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. 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. 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. Growing SeasonDefinitions 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 growing season at Washington Executive Airport/Hyde Field typically lasts for 7.2 months (219 days), from around March 31 to around November 5, rarely starting before March 14 or after April 17, and rarely ending before October 18 or after November 22. 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. In this report, we use a base of 50°F and a cap of 86°F. Based on growing degree days alone, the first spring blooms at Washington Executive Airport/Hyde Field should appear around March 17, only rarely appearing before February 28 or after April 6. Solar EnergyThis 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. Shortwave radiation includes visible light and ultraviolet radiation. The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year. The brighter period of the year lasts for 3.8 months, from April 26 to August 21, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest month of the year at Washington Executive Airport/Hyde Field is June, with an average of 6.8 kWh. 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. The darkest month of the year at Washington Executive Airport/Hyde Field is December, with an average of 2.1 kWh.
TopographyFor the purposes of this report, the geographical coordinates of Washington Executive Airport/Hyde Field are 38.749 deg latitude, -76.932 deg longitude, and 243 ft elevation. The topography within 2 miles of Washington Executive Airport/Hyde Field contains only modest variations in elevation, with a maximum elevation change of 174 feet and an average elevation above sea level of 202 feet. Within 10 miles also contains only modest variations in elevation (299 feet). Within 50 miles contains only modest variations in elevation (1,355 feet). The area within 2 miles of Washington Executive Airport/Hyde Field is covered by trees (53%), artificial surfaces (29%), and cropland (17%), within 10 miles by artificial surfaces (45%) and trees (42%), and within 50 miles by trees (40%) and artificial surfaces (20%). Data SourcesThis report illustrates the typical weather at Washington Executive Airport/Hyde Field, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointWashington Executive Airport/Hyde Field has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required. In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations. The stations on which we may fall back include but are not limited to Ronald Reagan Washington National Airport; College Park Airport; Tipton Airport; Mount Vernon Hospital Heliport; Baltimore-Washington International Airport; Annapolis, United States Naval Academy; Montgomery County Airpark; and Baltimore, Inner Harbor. Other DataAll data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. 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 . 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. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . Time zones for airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. 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. 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. Please review our full terms contained on our Terms of Service page. |