Climate in Plainfield, Illinois

Plainfield, Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Plainfield averages 29 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 188 sunny days per year in Plainfield. The US average is 205 sunny days.

Plainfield gets some kind of precipitation, on average, 124 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 84 degrees
Winter Low: the January low is 16
Rain: averages 39 inches of rain a year
Snow: averages 29 inches of snow a year

BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Plainfield is 6.9 (10=best), which means it is less comfortable than most places in Illinois.

July is the hottest month for Plainfield with an average high temperature of 84.0°, which ranks it as cooler than most places in Illinois. In Plainfield, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Plainfield are September, June and August.

In Plainfield, there are 12.1 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

January has the coldest nighttime temperatures for Plainfield with an average of 16.1°. This is about average compared to other places in Illinois.

In Plainfield, there are 121.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

In Plainfield, there are 7.3 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

The humidity is usually comfortable in Plainfield but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

July is the wettest month in Plainfield with 4.5 inches of rain, and the driest month is January with 1.8 inches. The wettest season is Autumn with 33% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 39.2 inches in Plainfield means that it is about average compared to other places in Illinois.

May is the rainiest month in Plainfield with 12.5 days of rain, and September is the driest month with only 7.9 rainy days. There are 124.0 rainy days annually in Plainfield, which is one of the rainiest places in Illinois. 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 29.4 inches in Plainfield means that it is snowier than most places in Illinois. December is the snowiest month in Plainfield with 9.2 inches of snow, and 6 months of the year have significant snowfall.

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