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      Elev 502 ft, 38.911 °N 90.140 °W

      Alton, IL

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp617088
      Low Temp394934
      Day Average Temp48.38--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation0--
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point39.19--
      High41--
      Low37--
      Average39.19--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed12--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.63--
      Astronomy Day Length Rise Set
      Actual Time13h 38m6:09 AM7:47 PM
      Civil Twilight5:41 AM8:16 PM
      Nautical Twilight5:07 AM8:50 PM
      Astronomical Twilight4:30 AM9:27 PM
      Moon: Waning gibbous9:57 PM6:47 AM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:15 AM 46 °F 40 °F 81 % CALM 0 mph - 29.67 in 0 in Fair
      12:35 AM 45 °F 41 °F 85 % CALM 0 mph - 29.67 in 0 in Fair
      12:55 AM 44 °F 40 °F 87 % CALM 0 mph - 29.67 in 0 in Fair
      1:15 AM 44 °F 40 °F 86 % CALM 0 mph - 29.67 in 0 in Fair
      1:35 AM 44 °F 40 °F 87 % CALM 0 mph - 29.67 in 0 in Fair
      1:55 AM 44 °F 40 °F 85 % CALM 0 mph - 29.67 in 0 in Fair
      2:15 AM 43 °F 40 °F 87 % CALM 0 mph - 29.67 in 0 in Fair
      2:35 AM 43 °F 39 °F 87 % CALM 0 mph - 29.67 in 0 in Fair
      2:55 AM 42 °F 39 °F 90 % CALM 0 mph - 29.68 in 0 in Fair
      3:15 AM 42 °F 39 °F 89 % CALM 0 mph - 29.68 in 0 in Fair
      3:35 AM 41 °F 39 °F 92 % CALM 0 mph - 29.68 in 0 in Fair
      3:55 AM 42 °F 40 °F 91 % CALM 0 mph - 29.68 in 0 in Fair
      4:15 AM 42 °F 38 °F 89 % CALM 0 mph - 29.68 in 0 in Fair
      4:35 AM 40 °F 38 °F 91 % CALM 0 mph - 29.69 in 0 in Fair
      4:55 AM 40 °F 38 °F 93 % CALM 0 mph - 29.69 in 0 in Fair
      5:15 AM 40 °F 38 °F 91 % CALM 0 mph - 29.69 in 0 in Fair
      5:35 AM 40 °F 38 °F 91 % CALM 0 mph - 29.69 in 0 in Fair
      5:55 AM 40 °F 37 °F 91 % CALM 0 mph - 29.68 in 0 in Fair
      6:15 AM 39 °F 38 °F 93 % CALM 0 mph - 29.69 in 0 in Fair
      6:35 AM 39 °F 38 °F 94 % CALM 0 mph - 29.68 in 0 in Fair
      6:50 AM 39 °F 37 °F 93 % E 9 mph - 29.68 in 0 in Fair
      7:50 AM 43 °F 37 °F 81 % E 9 mph - 29.71 in 0 in Fair
      8:50 AM 46 °F 39 °F 76 % ESE 9 mph - 29.7 in 0 in Fair
      9:50 AM 50 °F 41 °F 71 % SE 7 mph - 29.7 in 0 in Fair
      10:50 AM 54 °F 37 °F 54 % SE 12 mph - 29.69 in 0 in Fair
      11:50 AM 57 °F 39 °F 51 % ESE 7 mph - 29.67 in 0 in Fair
      12:50 PM 57 °F 39 °F 51 % SE 9 mph - 29.66 in 0 in Fair
      1:50 PM 61 °F 39 °F 45 % SE 6 mph - 29.64 in 0 in Fair
      2:50 PM 61 °F 39 °F 45 % ESE 10 mph - 29.6 in 0 in Fair
      3:50 PM 61 °F 39 °F 45 % ESE 10 mph - 29.59 in 0 in Fair
      4:50 PM 59 °F 39 °F 48 % SE 9 mph - 29.59 in 0 in Fair
      5:50 PM 59 °F 39 °F 48 % ESE 12 mph - 29.57 in 0 in Fair
      6:50 PM 57 °F 41 °F 55 % SE 7 mph - 29.57 in 0 in Fair
      7:50 PM 54 °F 41 °F 62 % SE 7 mph - 29.55 in 0 in Fair
      8:50 PM 55 °F 41 °F 58 % ESE 9 mph - 29.54 in 0 in Fair
      9:50 PM 55 °F 39 °F 54 % ESE 9 mph - 29.53 in 0 in Fair
      10:15 PM 55 °F 40 °F 57 % CALM 0 mph - 29.53 in 0 in Fair
      10:35 PM 54 °F 40 °F 59 % CALM 0 mph - 29.51 in 0 in Fair
      10:55 PM 54 °F 40 °F 59 % CALM 0 mph - 29.5 in 0 in Fair
      11:15 PM 54 °F 40 °F 61 % CALM 0 mph - 29.5 in 0 in Fair
      11:35 PM 53 °F 40 °F 61 % CALM 0 mph - 29.49 in 0 in Fair
      11:55 PM 54 °F 40 °F 59 % E 6 mph - 29.48 in 0 in Fair
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