Climate in Alton, Indiana

Alton, Indiana gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Alton averages 8 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 193 sunny days per year in Alton. The US average is 205 sunny days.

Alton gets some kind of precipitation, on average, 115 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 87 degrees
Winter Low: the January low is 23
Rain: averages 47 inches of rain a year
Snow: averages 8 inches of snow a year

BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Alton is 7.3 (10=best), which means it is one of the most pleasant places in Indiana.

August is the hottest month for Alton with an average high temperature of 87.2°, which ranks it as one of the hottest places in Indiana. In Alton, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Alton are May, September and June.

January has the coldest nighttime temperatures for Alton with an average of 23.2°. This is one of the warmest places in Indiana.

In Alton, there are 26.5 days annually when the high temperature is over 90°, which is hotter than most places in Indiana.

In Alton, there are 100.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Indiana.

In Alton, there are 2.2 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Indiana.

May is the wettest month in Alton with 5.3 inches of rain, and the driest month is August with 3.1 inches. The wettest season is Summer with 30% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 47.2 inches in Alton means that it is one of the wettest places in Indiana.

May is the rainiest month in Alton with 11.4 days of rain, and August is the driest month with only 7.2 rainy days. There are 115.3 rainy days annually in Alton, which is less rainy than most places in Indiana. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 8.1 inches in Alton means that it is one of the least snowy places in Indiana. February is the snowiest month in Alton with 2.7 inches of snow, and 4 months of the year have significant snowfall.

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