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      Elev 502 ft, 38.911 °N 90.140 °W

      Alton, IL

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp384881
      Low Temp25290
      Day Average Temp30.5--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation0--
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point17.19--
      High31--
      Low9--
      Average17.19--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed28--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.47--
      Astronomy Day Length Rise Set
      Actual Time11h 16m6:34 AM5:51 PM
      Civil Twilight6:08 AM6:18 PM
      Nautical Twilight5:37 AM6:49 PM
      Astronomical Twilight5:06 AM7:20 PM
      Moon: Waning gibbous10:01 PM8:22 AM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:15 AM 38 °F 31 °F 75 % WNW 24 mph 33 mph 29.05 in 0 in Cloudy / Windy
      12:35 AM 37 °F 28 °F 72 % WNW 17 mph 33 mph 29.04 in 0 in Cloudy
      12:55 AM 35 °F 29 °F 77 % WNW 28 mph 32 mph 29.07 in 0 in Thunder in the Vicinity
      1:15 AM 35 °F 29 °F 77 % WNW 22 mph 37 mph 29.1 in 0 in Cloudy / Windy
      1:35 AM 34 °F 25 °F 71 % NW 15 mph 24 mph 29.1 in 0 in Cloudy
      1:55 AM 34 °F 26 °F 74 % WNW 23 mph 31 mph 29.1 in 0 in Cloudy / Windy
      2:15 AM 33 °F 25 °F 72 % WNW 25 mph 32 mph 29.13 in 0 in Cloudy / Windy
      2:35 AM 33 °F 25 °F 72 % WNW 20 mph 29 mph 29.14 in 0 in Cloudy
      2:55 AM 32 °F 23 °F 70 % WNW 23 mph 33 mph 29.16 in 0 in Cloudy / Windy
      3:15 AM 32 °F 23 °F 70 % WNW 18 mph 29 mph 29.18 in 0 in Cloudy
      3:35 AM 32 °F 24 °F 71 % NW 16 mph 33 mph 29.2 in 0 in Cloudy
      3:55 AM 31 °F 23 °F 74 % WNW 17 mph 28 mph 29.23 in 0 in Cloudy
      4:15 AM 30 °F 22 °F 73 % WNW 16 mph 28 mph 29.26 in 0 in Cloudy
      4:35 AM 29 °F 24 °F 81 % WNW 18 mph 26 mph 29.26 in 0 in Light Snow
      4:55 AM 29 °F 23 °F 79 % WNW 18 mph 25 mph 29.26 in 0 in Cloudy
      5:15 AM 28 °F 21 °F 74 % WNW 20 mph 36 mph 29.29 in 0 in Cloudy
      5:35 AM 28 °F 19 °F 71 % WNW 18 mph 32 mph 29.31 in 0 in Cloudy
      5:55 AM 27 °F 19 °F 73 % WNW 23 mph 29 mph 29.33 in 0 in Mostly Cloudy / Windy
      6:15 AM 26 °F 18 °F 72 % WNW 23 mph 33 mph 29.35 in 0 in Fair / Windy
      6:35 AM 26 °F 17 °F 71 % WNW 20 mph 26 mph 29.36 in 0 in Fair
      6:50 AM 25 °F 18 °F 74 % WNW 18 mph 32 mph 29.38 in 0 in Fair
      7:50 AM 27 °F 14 °F 59 % WNW 23 mph 31 mph 29.45 in 0 in Fair / Windy
      8:50 AM 27 °F 12 °F 55 % WNW 26 mph 36 mph 29.51 in 0 in Fair / Windy
      9:50 AM 28 °F 10 °F 47 % WNW 21 mph 32 mph 29.58 in 0 in Fair / Windy
      10:50 AM 30 °F 10 °F 44 % NW 21 mph 35 mph 29.63 in 0 in Fair / Windy
      11:50 AM 32 °F 10 °F 41 % NW 21 mph 35 mph 29.65 in 0 in Fair / Windy
      12:50 PM 34 °F 10 °F 38 % WNW 21 mph 35 mph 29.67 in 0 in Fair / Windy
      1:50 PM 37 °F 9 °F 30 % WNW 21 mph 35 mph 29.7 in 0 in Fair / Windy
      2:50 PM 37 °F 9 °F 30 % WNW 21 mph 35 mph 29.71 in 0 in Fair / Windy
      3:50 PM 37 °F 10 °F 33 % W 17 mph 29 mph 29.72 in 0 in Fair
      4:50 PM 37 °F 9 °F 30 % WNW 13 mph - 29.75 in 0 in Fair
      5:50 PM 34 °F 9 °F 35 % WNW 8 mph - 29.77 in 0 in Fair
      6:50 PM 30 °F 10 °F 44 % NW 6 mph - 29.81 in 0 in Fair
      7:50 PM 28 °F 10 °F 47 % W 3 mph - 29.82 in 0 in Fair
      8:50 PM 27 °F 12 °F 55 % W 5 mph - 29.84 in 0 in Fair
      9:50 PM 25 °F 12 °F 59 % WNW 7 mph - 29.85 in 0 in Fair
      10:15 PM 25 °F 13 °F 60 % CALM 0 mph - 29.86 in 0 in Fair
      10:35 PM 25 °F 13 °F 60 % CALM 0 mph - 29.86 in 0 in Fair
      10:55 PM 28 °F 13 °F 53 % CALM 0 mph - 29.86 in 0 in Fair
      11:15 PM 27 °F 11 °F 52 % CALM 0 mph - 29.86 in 0 in Fair
      11:35 PM 26 °F 11 °F 54 % CALM 0 mph - 29.86 in 0 in Fair
      11:55 PM 26 °F 13 °F 58 % CALM 0 mph - 29.86 in 0 in Fair
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