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Climate in Alton, Illinois

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Climate
ClimateAlton, ILUnited States
Rainfall (in.)38.236.5
Snowfall (in.)10.725
Precipitation Days102100
Sunny Days200205
Avg. July High8886.5
Avg. Jan. Low19.920.5
Comfort Index (higher=better)4044
UV Index4.14.3
Elevation ft.4301,060

Alton, IL, gets 38 inches of rain per year. The US average is 37. Snowfall is 11 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 102.

On average, there are 200 sunny days per year in Alton, IL. The July high is around 88 degrees. The January low is 20. Our comfort index, which is based on humidity during the hot months, is a 40 out of 100, where higher is more comfortable. The US average on the comfort index is 44.


Alton Climate SperlingViews

If you don't like the weather...: There is a saying that is often heard in this area of the world...if you don't like the weather, just wait. The weather changes frequently. Not just within a month or... (read more)I do not live in Alton...: thats just the closest thing to my hometown Dorsey Illinois there was. Dorsey isnt in the cities. But what I originally got on here for was to tell you that there is... (read more)Alton: Alton is a quaint river town on the Mississippi river just North East of St. Louis, MO. I do like the individuality of the homes, the tree-lined streets, and the small... (read more)Have an opinion about Alton? Leave a commentTo See All SperlingViews for Alton Click Here