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      Elev 456 ft, 38.891 °N 90.121 °W

      Alton, IL

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp726987
      Low Temp724933
      Day Average Temp72--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation0--
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point60.5--
      High61--
      Low60--
      Average60.5--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed0--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.31--
      Astronomy Day Length Rise Set
      Actual Time11h 16m7:08 AM6:24 PM
      Civil Twilight6:41 AM6:51 PM
      Nautical Twilight6:10 AM7:22 PM
      Astronomical Twilight5:39 AM7:53 PM
      Moon: Waxing crescent10:21 AM7:46 PM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:15 AM 72 °F 60 °F 66 % CALM 0 mph - 29.3 in 0 in Fair
      12:35 AM 72 °F 61 °F 68 % CALM 0 mph - 29.31 in 0 in Fair
      Level Access
      Glossary