Climate in Springfield, Illinois

Springfield, Illinois has a humid continental climate characterized by four distinct seasons. Summers are warm and humid while winters are cold and snowy. The area experiences moderate precipitation throughout the year.

Springfield, Illinois gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Springfield averages 18 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 196 sunny days per year in Springfield. The US average is 205 sunny days.

Springfield gets some kind of precipitation, on average, 103 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.

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Weather Highlights

Summer High: the July high is around 85 degrees
Winter Low: the January low is 18
Rain: averages 38 inches of rain a year
Snow: averages 18 inches of snow a year

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BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Springfield is 7.2 (10=best), which means it is one of the most pleasant places in Illinois.

September, June and May are the most pleasant months in Springfield, while January and December are the least comfortable months.

July is the hottest month for Springfield with an average high temperature of 85.4°, which ranks it as about average compared to other places in Illinois. In Springfield, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Springfield are September, May and June.

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In Springfield, there are 18.7 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

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January has the coldest nighttime temperatures for Springfield with an average of 18.4°. This is warmer than most places in Illinois.

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In Springfield, there are 116.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

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In Springfield, there are 4.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

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The humidity can be uncomfortably heavy or close in Springfield during the summer months. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most humid months in Springfield.

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June is the wettest month in Springfield with 4.5 inches of rain, and the driest month is January with 1.9 inches. The wettest season is Autumn with 30% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 38.4 inches in Springfield means that it is about average compared to other places in Illinois.

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May is the rainiest month in Springfield with 11.1 days of rain, and February is the driest month with only 6.9 rainy days. There are 103.4 rainy days annually in Springfield, which is less rainy than most places in Illinois. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 23% chance of a rainy day.

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An annual snowfall of 17.7 inches in Springfield means that it is less snowy than most places in Illinois. January is the snowiest month in Springfield with 5.4 inches of snow, and 5 months of the year have significant snowfall.

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