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      Elev 114 ft, 38.960 °N 77.382 °W

      Herndon, VA

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp687386
      Low Temp595130
      Day Average Temp63.13--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation0.093-
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point55.13--
      High63--
      Low50--
      Average55.13--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed15--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.81--
      Astronomy Day Length Rise Set
      Actual Time11h 41m7:07 AM6:48 PM
      Civil Twilight6:40 AM7:15 PM
      Nautical Twilight6:09 AM7:46 PM
      Astronomical Twilight5:38 AM8:17 PM
      Moon: Last quarter-2:54 PM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:52 AM 68 °F 63 °F 84 % NNE 7 mph - 29.76 in 0.04 in Light Rain
      1:52 AM 68 °F 63 °F 84 % NE 6 mph - 29.76 in 0 in Cloudy
      2:52 AM 68 °F 61 °F 78 % NNW 9 mph - 29.77 in 0 in Cloudy
      3:52 AM 62 °F 52 °F 70 % NNE 15 mph 28 mph 29.79 in 0.05 in Light Rain
      4:52 AM 61 °F 50 °F 67 % N 12 mph - 29.82 in 0 in Cloudy
      5:52 AM 59 °F 50 °F 72 % NNE 9 mph - 29.83 in 0 in Light Rain
      6:52 AM 59 °F 51 °F 75 % NNE 7 mph - 29.85 in 0 in Light Rain
      7:52 AM 60 °F 51 °F 72 % N 7 mph - 29.88 in 0 in Cloudy
      Level Access
      Glossary