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      Elev 114 ft, 38.960 °N 77.382 °W

      Reston, VA

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp928799
      Low Temp726650
      Day Average Temp79.5--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation0.685.1-
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point69.87--
      High74--
      Low65--
      Average69.87--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed21--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.63--
      Astronomy Day Length Rise Set
      Actual Time14h 48m5:50 AM8:38 PM
      Civil Twilight5:18 AM9:09 PM
      Nautical Twilight4:38 AM9:49 PM
      Astronomical Twilight3:52 AM10:34 PM
      Moon: Full9:24 PM6:01 AM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:52 AM 74 °F 67 °F 79 % CALM 0 mph - 29.61 in 0 in Haze
      1:52 AM 73 °F 67 °F 81 % CALM 0 mph - 29.62 in 0 in Fair
      2:52 AM 73 °F 67 °F 81 % SSE 3 mph - 29.61 in 0 in Fair
      3:52 AM 73 °F 68 °F 84 % SSE 6 mph - 29.61 in 0 in Haze
      4:52 AM 74 °F 70 °F 87 % S 7 mph - 29.62 in 0 in Fair
      5:52 AM 74 °F 71 °F 91 % S 5 mph - 29.63 in 0 in Fair
      6:52 AM 75 °F 71 °F 87 % S 5 mph - 29.64 in 0 in Mostly Cloudy
      7:21 AM 76 °F 72 °F 87 % VAR 5 mph - 29.64 in 0 in Mostly Cloudy
      7:52 AM 76 °F 71 °F 85 % S 6 mph - 29.65 in 0 in Mostly Cloudy
      8:52 AM 78 °F 72 °F 81 % SSW 9 mph - 29.66 in 0 in Cloudy
      9:52 AM 79 °F 72 °F 79 % SW 5 mph - 29.66 in 0 in Haze
      10:52 AM 82 °F 73 °F 74 % S 7 mph - 29.67 in 0 in Haze
      11:52 AM 86 °F 74 °F 67 % VAR 6 mph - 29.66 in 0 in Fair
      12:37 PM 88 °F 73 °F 61 % VAR 5 mph - 29.65 in 0 in Mostly Cloudy
      12:52 PM 87 °F 72 °F 61 % VAR 5 mph - 29.65 in 0 in Mostly Cloudy
      1:20 PM 89 °F 71 °F 55 % CALM 0 mph - 29.65 in 0 in Mostly Cloudy
      1:52 PM 91 °F 72 °F 53 % CALM 0 mph - 29.64 in 0 in Mostly Cloudy
      2:52 PM 91 °F 71 °F 52 % SE 6 mph - 29.61 in 0 in Mostly Cloudy
      3:52 PM 92 °F 70 °F 48 % SE 8 mph - 29.59 in 0 in Mostly Cloudy
      4:52 PM 91 °F 71 °F 52 % SSE 5 mph - 29.58 in 0 in Cloudy
      5:12 PM 86 °F 65 °F 49 % SSE 20 mph 32 mph 29.6 in 0 in Thunder
      5:29 PM 80 °F 67 °F 64 % SSE 15 mph 24 mph 29.61 in 0.07 in Heavy T-Storm
      5:52 PM 73 °F 65 °F 76 % S 21 mph 29 mph 29.63 in 0.49 in T-Storm / Windy
      6:16 PM 72 °F 66 °F 81 % SSW 8 mph - 29.61 in 0.06 in Mostly Cloudy
      6:52 PM 80 °F 65 °F 60 % NNW 6 mph - 29.62 in 0.06 in Mostly Cloudy
      7:52 PM 77 °F 71 °F 82 % SE 6 mph - 29.62 in 0 in Mostly Cloudy
      8:52 PM 75 °F 70 °F 84 % E 3 mph - 29.63 in 0 in Partly Cloudy
      9:52 PM 74 °F 71 °F 91 % CALM 0 mph - 29.65 in 0 in Partly Cloudy
      10:52 PM 74 °F 71 °F 91 % SW 3 mph - 29.66 in 0 in Fair
      11:52 PM 72 °F 70 °F 93 % CALM 0 mph - 29.66 in 0 in Fair
      Level Access
      Glossary