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      Elev 330 ft, 38.937 °N 77.221 °W

      McLean, VA

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp857489
      Low Temp645332
      Day Average Temp73.95--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation02.9-
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point64--
      High67--
      Low61--
      Average64--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed14--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.97--
      Astronomy Day Length Rise Set
      Actual Time11h 44m7:05 AM6:49 PM
      Civil Twilight6:39 AM7:16 PM
      Nautical Twilight6:08 AM7:47 PM
      Astronomical Twilight5:37 AM8:18 PM
      Moon: Waning gibbous11:01 PM1:58 PM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:52 AM 69 °F 63 °F 81 % S 7 mph - 30.01 in 0 in Fair
      1:52 AM 69 °F 64 °F 84 % S 7 mph - 29.99 in 0 in Mostly Cloudy
      2:52 AM 68 °F 63 °F 84 % S 9 mph - 29.99 in 0 in Partly Cloudy
      3:52 AM 67 °F 62 °F 84 % S 8 mph - 29.98 in 0 in Fair
      4:52 AM 66 °F 62 °F 87 % S 8 mph - 29.98 in 0 in Fair
      5:52 AM 65 °F 61 °F 87 % S 7 mph - 29.98 in 0 in Fair
      6:52 AM 64 °F 61 °F 90 % S 7 mph - 29.98 in 0 in Fair
      7:52 AM 66 °F 61 °F 84 % SSW 8 mph - 29.99 in 0 in Partly Cloudy
      8:52 AM 69 °F 63 °F 81 % S 8 mph - 30 in 0 in Partly Cloudy
      9:52 AM 72 °F 64 °F 76 % S 9 mph - 30 in 0 in Partly Cloudy
      10:52 AM 74 °F 64 °F 71 % S 9 mph - 29.99 in 0 in Mostly Cloudy
      11:02 AM 75 °F 65 °F 71 % S 10 mph - 29.99 in 0 in Mostly Cloudy
      11:52 AM 78 °F 65 °F 64 % S 10 mph - 29.98 in 0 in Mostly Cloudy
      12:52 PM 80 °F 65 °F 60 % S 14 mph - 29.96 in 0 in Mostly Cloudy
      1:52 PM 82 °F 66 °F 58 % S 13 mph - 29.95 in 0 in Mostly Cloudy
      2:52 PM 85 °F 65 °F 51 % SSW 10 mph - 29.92 in 0 in Mostly Cloudy
      3:52 PM 85 °F 67 °F 55 % S 10 mph - 29.91 in 0 in Mostly Cloudy
      4:52 PM 85 °F 65 °F 51 % SSW 13 mph - 29.91 in 0 in Mostly Cloudy
      5:52 PM 81 °F 67 °F 62 % S 12 mph - 29.9 in 0 in Mostly Cloudy
      6:52 PM 79 °F 67 °F 66 % S 10 mph - 29.9 in 0 in Mostly Cloudy
      Level Access
      Glossary