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      Elev 495 ft, 39.145 °N 77.061 °W

      Olney, MD

      Hallowell Station

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp848497
      Low Temp606643
      Day Average Temp72.47--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation0--
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point62.33--
      High67--
      Low60--
      Average62.33--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed10--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.51--
      Astronomy Day Length Rise Set
      Actual Time13h 16m6:31 AM7:47 PM
      Civil Twilight6:03 AM8:15 PM
      Nautical Twilight5:30 AM8:48 PM
      Astronomical Twilight4:55 AM9:23 PM
      Moon: Waxing gibbous7:10 PM4:45 AM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:56 AM 63 °F - - CALM 0 mph - 29.54 in 0 in Fair
      1:56 AM 61 °F - - CALM 0 mph - 29.53 in 0 in Fair
      2:56 AM 61 °F - - CALM 0 mph - 29.52 in 0 in Mostly Cloudy
      3:56 AM 61 °F - - CALM 0 mph - 29.53 in 0 in Fair
      4:56 AM 60 °F 60 °F 100 % CALM 0 mph - 29.52 in 0 in Fair
      5:56 AM 60 °F - - CALM 0 mph - 29.52 in 0 in Fair
      6:56 AM 60 °F - - CALM 0 mph - 29.53 in 0 in Fair
      7:56 AM 64 °F - - CALM 0 mph - 29.54 in 0 in Fair
      8:56 AM 69 °F 67 °F 93 % CALM 0 mph - 29.55 in 0 in Fair
      9:56 AM 76 °F 64 °F 67 % CALM 0 mph - 29.54 in 0 in Fair
      10:56 AM 81 °F 62 °F 52 % VAR 6 mph - 29.55 in 0 in Fair
      11:56 AM 81 °F 63 °F 54 % WSW 7 mph - 29.54 in 0 in Partly Cloudy
      12:56 PM 84 °F 61 °F 46 % S 9 mph - 29.52 in 0 in Fair
      1:56 PM 84 °F 60 °F 44 % WSW 8 mph - 29.5 in 0 in Fair
      2:56 PM 84 °F 60 °F 44 % SSW 10 mph 20 mph 29.49 in 0 in Mostly Cloudy
      3:56 PM 84 °F 63 °F 49 % S 8 mph - 29.47 in 0 in Mostly Cloudy
      4:56 PM 83 °F 62 °F 49 % S 7 mph - 29.47 in 0 in Partly Cloudy
      5:56 PM 81 °F 63 °F 54 % S 7 mph - 29.47 in 0 in Fair
      6:56 PM 80 °F 63 °F 56 % SSE 6 mph - 29.45 in 0 in Fair
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