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      Elev 456 ft, 38.891 °N 90.121 °W

      Alton, IL

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp706888
      Low Temp674834
      Day Average Temp68.42--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation0--
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point66.08--
      High67--
      Low65--
      Average66.08--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed0--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.48--
      Astronomy Day Length Rise Set
      Actual Time11h 11m7:10 AM6:21 PM
      Civil Twilight6:43 AM6:48 PM
      Nautical Twilight6:12 AM7:19 PM
      Astronomical Twilight5:41 AM7:50 PM
      Moon: Waxing crescent12:20 PM9:16 PM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:15 AM 70 °F 67 °F 92 % CALM 0 mph - 29.49 in 0 in Cloudy
      12:35 AM 70 °F 67 °F 89 % CALM 0 mph - 29.49 in 0 in Cloudy
      12:55 AM 70 °F 66 °F 89 % CALM 0 mph - 29.48 in 0 in Cloudy
      1:15 AM 69 °F 66 °F 90 % CALM 0 mph - 29.48 in 0 in Cloudy
      1:35 AM 68 °F 66 °F 94 % CALM 0 mph - 29.48 in 0 in Cloudy
      1:55 AM 68 °F 66 °F 94 % CALM 0 mph - 29.48 in 0 in Cloudy
      2:15 AM 67 °F 66 °F 96 % CALM 0 mph - 29.49 in 0 in Cloudy
      2:35 AM 68 °F 66 °F 94 % CALM 0 mph - 29.48 in 0 in Cloudy
      2:55 AM 68 °F 66 °F 94 % CALM 0 mph - 29.48 in 0 in Cloudy
      3:15 AM 68 °F 66 °F 93 % CALM 0 mph - 29.49 in 0 in Cloudy
      3:35 AM 68 °F 66 °F 95 % CALM 0 mph - 29.47 in 0 in Cloudy
      3:55 AM 67 °F 65 °F 93 % CALM 0 mph - 29.47 in 0 in Cloudy
      Level Access
      Glossary