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      Elev 114 ft, 38.960 °N 77.382 °W

      Herndon, VA

      Herndon Station79°

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp788399
      Low Temp696242
      Day Average Temp73.25--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation03.5-
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point68.5--
      High71--
      Low67--
      Average68.5--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed8--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.55--
      Astronomy Day Length Rise Set
      Actual Time12h 51m6:42 AM7:33 PM
      Civil Twilight6:14 AM8:00 PM
      Nautical Twilight5:42 AM8:32 PM
      Astronomical Twilight5:09 AM9:05 PM
      Moon: Waning crescent12:02 AM4:04 PM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:52 AM 72 °F 71 °F 97 % SSE 3 mph - 29.57 in 0 in Fair
      1:52 AM 74 °F 69 °F 85 % NW 6 mph - 29.56 in 0 in Fair
      2:52 AM 70 °F 69 °F 97 % CALM 0 mph - 29.54 in 0 in Fair
      3:52 AM 69 °F 68 °F 96 % CALM 0 mph - 29.53 in 0 in Fair
      4:52 AM 69 °F 68 °F 96 % CALM 0 mph - 29.53 in 0 in Fair
      5:52 AM 73 °F 67 °F 81 % NNW 7 mph - 29.53 in 0 in Fair
      6:52 AM 69 °F 67 °F 93 % CALM 0 mph - 29.53 in 0 in Mostly Cloudy
      7:52 AM 74 °F 69 °F 85 % NW 5 mph - 29.54 in 0 in Mostly Cloudy
      8:52 AM 76 °F 69 °F 79 % VAR 6 mph - 29.55 in 0 in Mostly Cloudy
      9:52 AM 78 °F 70 °F 76 % NNE 8 mph - 29.56 in 0 in Mostly Cloudy
      10:52 AM 77 °F 68 °F 74 % NNE 6 mph - 29.58 in 0 in Mostly Cloudy
      11:52 AM 78 °F 67 °F 68 % N 6 mph - 29.58 in 0 in Cloudy
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