Alton weather averages

  
Annual high temperature66ºF
Annual low temperature47ºF
Average annual precip.41.3 inch

Station Data

Monthly averages Alton
Longitude: -90.1843, Latitude: 38.8906
Average weather Alton, IL - 62002

Monthly: 1981-2010 normals
History: 2007-2019

Abbreviations

Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...
Jan: January, Feb: February, ...Ja: January, Fe: February, ...