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      Elev 502 ft, 38.911 °N 90.140 °W

      Alton, IL

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp636988
      Low Temp424832
      Day Average Temp50.4--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation0--
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point44.55--
      High51--
      Low41--
      Average44.55--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed15--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.56--
      Astronomy Day Length Rise Set
      Actual Time13h 36m6:10 AM7:46 PM
      Civil Twilight5:42 AM8:15 PM
      Nautical Twilight5:08 AM8:49 PM
      Astronomical Twilight4:32 AM9:25 PM
      Moon: Waning gibbous8:51 PM6:19 AM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:15 AM 48 °F 47 °F 99 % CALM 0 mph - 29.44 in 0 in Fog
      12:35 AM 49 °F 48 °F 99 % CALM 0 mph - 29.45 in 0 in Fog
      12:55 AM 51 °F 51 °F 99 % CALM 0 mph - 29.45 in 0 in Mist
      1:15 AM 49 °F 48 °F 99 % CALM 0 mph - 29.45 in 0 in Mist
      1:35 AM 49 °F 49 °F 99 % CALM 0 mph - 29.46 in 0 in Fair
      1:55 AM 46 °F 46 °F 99 % CALM 0 mph - 29.46 in 0 in Mist
      2:15 AM 46 °F 45 °F 99 % CALM 0 mph - 29.46 in 0 in Fog
      2:35 AM 47 °F 47 °F 99 % CALM 0 mph - 29.46 in 0 in Mist
      2:55 AM 47 °F 47 °F 99 % CALM 0 mph - 29.46 in 0 in Fair
      3:15 AM 46 °F 45 °F 99 % CALM 0 mph - 29.47 in 0 in Mist
      3:35 AM 45 °F 45 °F 99 % CALM 0 mph - 29.48 in 0 in Fair
      3:55 AM 46 °F 46 °F 99 % CALM 0 mph - 29.48 in 0 in Fair
      4:15 AM 45 °F 44 °F 99 % CALM 0 mph - 29.49 in 0 in Fair
      4:35 AM 44 °F 44 °F 99 % CALM 0 mph - 29.5 in 0 in Fair
      4:55 AM 46 °F 45 °F 99 % CALM 0 mph - 29.5 in 0 in Fair
      5:15 AM 46 °F 46 °F 99 % CALM 0 mph - 29.51 in 0 in Fair
      5:35 AM 44 °F 44 °F 99 % CALM 0 mph - 29.51 in 0 in Fair
      5:55 AM 45 °F 44 °F 99 % CALM 0 mph - 29.52 in 0 in Fair
      6:15 AM 45 °F 44 °F 99 % CALM 0 mph - 29.53 in 0 in Fair
      6:35 AM 42 °F 41 °F 98 % CALM 0 mph - 29.54 in 0 in Fair
      6:50 AM 43 °F 41 °F 93 % VAR 6 mph - 29.55 in 0 in Fair
      7:50 AM 50 °F 45 °F 82 % VAR 6 mph - 29.58 in 0 in Fair
      8:50 AM 54 °F 43 °F 67 % VAR 6 mph - 29.59 in 0 in Fair
      9:50 AM 57 °F 43 °F 59 % VAR 6 mph - 29.61 in 0 in Fair
      10:50 AM 59 °F 45 °F 59 % VAR 5 mph - 29.63 in 0 in Fair
      11:50 AM 63 °F 45 °F 52 % NNE 9 mph - 29.63 in 0 in Partly Cloudy
      12:50 PM 63 °F 45 °F 52 % N 15 mph 18 mph 29.63 in 0 in Partly Cloudy
      1:50 PM 61 °F 46 °F 59 % NNE 10 mph - 29.63 in 0 in Mostly Cloudy
      2:50 PM 63 °F 48 °F 59 % NE 15 mph 21 mph 29.64 in 0 in Partly Cloudy
      3:50 PM 61 °F 46 °F 59 % NNE 12 mph - 29.63 in 0 in Partly Cloudy
      4:50 PM 61 °F 45 °F 55 % NE 12 mph - 29.62 in 0 in Fair
      5:50 PM 59 °F 41 °F 51 % NE 13 mph - 29.63 in 0 in Fair
      6:50 PM 57 °F 45 °F 63 % ENE 10 mph - 29.64 in 0 in Fair
      7:50 PM 54 °F 41 °F 62 % E 8 mph - 29.64 in 0 in Fair
      8:50 PM 50 °F 43 °F 76 % ENE 7 mph - 29.63 in 0 in Fair
      9:50 PM 50 °F 43 °F 76 % E 8 mph - 29.66 in 0 in Fair
      10:15 PM 49 °F 42 °F 77 % CALM 0 mph - 29.66 in 0 in Fair
      10:35 PM 49 °F 42 °F 76 % CALM 0 mph - 29.66 in 0 in Fair
      10:55 PM 48 °F 42 °F 79 % CALM 0 mph - 29.66 in 0 in Fair
      11:15 PM 47 °F 42 °F 81 % CALM 0 mph - 29.66 in 0 in Fair
      11:35 PM 47 °F 41 °F 79 % CALM 0 mph - 29.67 in 0 in Fair
      11:55 PM 46 °F 41 °F 81 % CALM 0 mph - 29.67 in 0 in Fair
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