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      Elev 425 ft, 38.843 °N 77.306 °W

      Fairfax, VA

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp898399
      Low Temp706248
      Day Average Temp77.09--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation0.573.6-
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point70.59--
      High74--
      Low69--
      Average70.59--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed18--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.6--
      Astronomy Day Length Rise Set
      Actual Time12h 53m6:40 AM7:34 PM
      Civil Twilight6:13 AM8:01 PM
      Nautical Twilight5:41 AM8:33 PM
      Astronomical Twilight5:08 AM9:07 PM
      Moon: Last quarter-3:01 PM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:32 AM 71 °F 69 °F 93 % S 5 mph - 29.66 in 0.05 in Light Rain
      12:52 AM 71 °F 69 °F 93 % SSW 8 mph - 29.64 in 0.07 in Light Rain
      1:52 AM 71 °F 69 °F 93 % CALM 0 mph - 29.57 in 0.05 in Light Rain
      2:00 AM 71 °F 69 °F 93 % N 3 mph - 29.58 in 0 in Cloudy
      2:52 AM 70 °F 69 °F 97 % S 5 mph - 29.6 in 0 in Cloudy
      3:52 AM 71 °F 70 °F 96 % CALM 0 mph - 29.6 in 0 in Cloudy
      4:52 AM 70 °F 70 °F 100 % S 3 mph - 29.6 in 0 in Partly Cloudy
      5:52 AM 71 °F 70 °F 96 % NNW 3 mph - 29.61 in 0 in Cloudy
      6:52 AM 71 °F 70 °F 96 % NE 6 mph - 29.62 in 0 in Mostly Cloudy
      7:52 AM 74 °F 71 °F 91 % CALM 0 mph - 29.63 in 0 in Partly Cloudy
      8:52 AM 78 °F 70 °F 76 % W 7 mph - 29.64 in 0 in Fair
      9:52 AM 81 °F 70 °F 69 % NNW 7 mph - 29.64 in 0 in Fair
      10:52 AM 83 °F 69 °F 63 % NW 12 mph - 29.64 in 0 in Partly Cloudy
      11:52 AM 85 °F 69 °F 59 % NW 9 mph - 29.63 in 0 in Partly Cloudy
      12:52 PM 87 °F 70 °F 57 % VAR 6 mph - 29.61 in 0 in Partly Cloudy
      1:52 PM 88 °F 70 °F 55 % VAR 6 mph - 29.6 in 0 in Mostly Cloudy
      2:52 PM 89 °F 70 °F 53 % VAR 6 mph - 29.57 in 0 in Mostly Cloudy
      3:52 PM 88 °F 71 °F 57 % VAR 6 mph - 29.57 in 0 in Mostly Cloudy
      4:03 PM 88 °F 71 °F 57 % NW 6 mph - 29.57 in 0 in Thunder
      4:16 PM 86 °F 72 °F 63 % VAR 6 mph - 29.58 in 0 in Thunder
      4:25 PM 84 °F 74 °F 72 % WSW 13 mph - 29.59 in 0.02 in Light Rain with Thunder
      4:30 PM 79 °F 71 °F 77 % WSW 18 mph 31 mph 29.59 in 0.09 in Heavy T-Storm
      4:33 PM 76 °F 71 °F 85 % W 14 mph 32 mph 29.6 in 0.12 in Light Rain with Thunder
      4:52 PM 75 °F 73 °F 94 % ENE 6 mph 17 mph 29.58 in 0.17 in Light Rain with Thunder
      5:13 PM 75 °F 72 °F 90 % WSW 9 mph - 29.58 in 0 in Mostly Cloudy
      5:52 PM 75 °F 71 °F 87 % CALM 0 mph - 29.57 in 0 in Mostly Cloudy
      6:52 PM 75 °F 72 °F 90 % WSW 3 mph - 29.55 in 0 in Cloudy
      7:52 PM 74 °F 72 °F 93 % CALM 0 mph - 29.56 in 0 in Cloudy
      8:52 PM 73 °F 72 °F 96 % SSW 3 mph - 29.55 in 0 in Partly Cloudy
      9:52 PM 72 °F 71 °F 97 % S 3 mph - 29.56 in 0 in Partly Cloudy
      10:52 PM 73 °F 71 °F 93 % S 5 mph - 29.58 in 0 in Mostly Cloudy
      11:52 PM 72 °F 71 °F 97 % S 3 mph - 29.58 in 0 in Mostly Cloudy
      Level Access
      Glossary