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      Elev 114 ft, 38.960 °N 77.382 °W

      Reston, VA

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp928797
      Low Temp726651
      Day Average Temp77.14--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation1.44.4-
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point71.53--
      High74--
      Low69--
      Average71.53--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed20--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.7--
      Astronomy Day Length Rise Set
      Actual Time13h 52m6:18 AM8:10 PM
      Civil Twilight5:49 AM8:39 PM
      Nautical Twilight5:14 AM9:14 PM
      Astronomical Twilight4:36 AM9:51 PM
      Moon: Waxing gibbous7:44 PM4:04 AM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:18 AM 75 °F 73 °F 94 % CALM 0 mph - 29.69 in 0 in Mostly Cloudy
      12:52 AM 77 °F 73 °F 88 % NNW 5 mph - 29.69 in 0 in Mostly Cloudy
      1:52 AM 76 °F 72 °F 87 % NNW 6 mph - 29.69 in 0 in Mostly Cloudy
      2:52 AM 76 °F 73 °F 91 % NW 5 mph - 29.7 in 0 in Mostly Cloudy
      3:52 AM 74 °F 72 °F 93 % NW 3 mph - 29.7 in 0 in Mostly Cloudy
      4:52 AM 73 °F 71 °F 93 % CALM 0 mph - 29.7 in 0 in Partly Cloudy
      5:52 AM 73 °F 71 °F 93 % CALM 0 mph - 29.71 in 0 in Fair
      6:52 AM 74 °F 72 °F 93 % NW 5 mph - 29.73 in 0 in Partly Cloudy
      7:52 AM 78 °F 73 °F 84 % NW 5 mph - 29.74 in 0 in Mostly Cloudy
      8:52 AM 82 °F 74 °F 76 % CALM 0 mph - 29.74 in 0 in Fair
      9:52 AM 86 °F 74 °F 67 % VAR 3 mph - 29.75 in 0 in Fair
      10:52 AM 88 °F 72 °F 59 % CALM 0 mph - 29.75 in 0 in Partly Cloudy
      11:52 AM 89 °F 72 °F 57 % VAR 5 mph - 29.75 in 0 in Partly Cloudy
      12:52 PM 92 °F 73 °F 54 % VAR 5 mph - 29.73 in 0 in Mostly Cloudy
      1:52 PM 92 °F 73 °F 54 % VAR 3 mph - 29.7 in 0 in Mostly Cloudy
      2:52 PM 91 °F 72 °F 53 % S 5 mph - 29.65 in 0 in Mostly Cloudy
      3:30 PM 88 °F 74 °F 63 % N 20 mph 32 mph 29.65 in 0.03 in T-Storm
      3:52 PM 80 °F 71 °F 74 % NNE 14 mph - 29.65 in 0.15 in Light Rain with Thunder
      4:11 PM 79 °F 71 °F 77 % NNW 8 mph 26 mph 29.67 in 0.11 in T-Storm
      4:21 PM 74 °F 69 °F 85 % VAR 3 mph 24 mph 29.71 in 0.16 in T-Storm
      4:52 PM 72 °F 69 °F 91 % WNW 7 mph 24 mph 29.67 in 0.63 in T-Storm
      5:18 PM 72 °F 70 °F 93 % S 6 mph - 29.7 in 0.01 in Light Rain with Thunder
      5:36 PM 73 °F 71 °F 93 % S 6 mph - 29.7 in 0.02 in Light Rain
      5:52 PM 73 °F 71 °F 93 % SSE 3 mph - 29.69 in 0.02 in Cloudy
      6:05 PM 73 °F 71 °F 93 % S 3 mph - 29.68 in 0 in Light Rain with Thunder
      6:52 PM 73 °F 71 °F 93 % S 6 mph - 29.7 in 0.05 in Light Rain with Thunder
      7:20 PM 73 °F 71 °F 93 % SSE 5 mph - 29.7 in 0.05 in Light Rain with Thunder
      7:30 PM 73 °F 71 °F 93 % SSE 6 mph - 29.69 in 0.06 in Light Rain
      7:52 PM 73 °F 71 °F 93 % S 5 mph - 29.68 in 0.07 in Light Rain
      8:34 PM 72 °F 71 °F 97 % CALM 0 mph - 29.69 in 0.02 in Light Rain
      8:52 PM 72 °F 71 °F 97 % CALM 0 mph - 29.69 in 0.02 in Light Rain
      9:14 PM 72 °F 70 °F 93 % WSW 6 mph - 29.69 in 0 in Light Rain
      9:52 PM 73 °F 71 °F 93 % VAR 5 mph - 29.69 in 0 in Mostly Cloudy
      10:52 PM 72 °F 71 °F 97 % SSW 7 mph - 29.68 in 0 in Cloudy
      11:25 PM 72 °F 70 °F 93 % SSW 5 mph - 29.68 in 0 in Mostly Cloudy
      11:52 PM 72 °F 70 °F 93 % SSW 6 mph - 29.68 in 0 in Light Rain
      Level Access
      Glossary