2025 Compare Climate & Weather:
Decatur, IL vs Fayetteville, AR

Highlights

On average, there are 217 sunny days per year in Fayetteville. Decatur averages 199 sunny days per year. The US average is 205 sunny days.

Fayetteville, Arkansas gets 47 inches of rain, on average, per year. Decatur, Illinois gets 39.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Fayetteville averages 6.6 inches of snow per year. Decatur averages 13 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Fayetteville, Arkansas
Summer High: the July high is around 88.7 degrees
Winter Low: the January low is 25.2
Rain: averages 47 inches of rain a year
Snow: averages 6.6 inches of snow a year

Decatur, Illinois
Summer High: the July high is around 86.9 degrees
Winter Low: the January low is 18.8
Rain: averages 39.5 inches of rain a year
Snow: averages 13 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Fayetteville is 7.4 (10=best), which means it is one of the most pleasant places in Arkansas.

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

Today's Weather - Decatur, IL

52°F

Today's Weather - Fayetteville, AR

55°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Decatur / Fayetteville

July is the hottest month for Decatur with an average high temperature of 86.9°, which ranks it as warmer than most places in Illinois. In Decatur, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Decatur are September, May and June.

August is the hottest month for Fayetteville with an average high temperature of 89.1°, which ranks it as one of the coolest places in Arkansas. In Fayetteville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Fayetteville are May, September and June.

January has the coldest nighttime temperatures for Decatur with an average of 18.8°. This is warmer than most places in Illinois.

January has the coldest nighttime temperatures for Fayetteville with an average of 25.2°. This is colder than most places in Arkansas.

In Decatur, there are 24.8 days annually when the high temperature is over 90°, which is hotter than most places in Illinois.

In Fayetteville, there are 34.8 days annually when the high temperature is over 90°, which is one of the coolest places in Arkansas.

In Decatur, there are 112.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In Fayetteville, there are 90.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Arkansas.

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

In Fayetteville, there are 1.2 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Arkansas.

June is the wettest month in Decatur with 4.5 inches of rain, and the driest month is January with 1.9 inches. The wettest season is Autumn with 31% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 39.5 inches in Decatur means that it is about average compared to other places in Illinois.


May is the wettest month in Fayetteville with 5.6 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Summer with 30% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 47.0 inches in Fayetteville means that it is drier than most places in Arkansas.

May is the rainiest month in Decatur with 11.5 days of rain, and September is the driest month with only 6.9 rainy days. There are 104.3 rainy days annually in Decatur, 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.

May is the rainiest month in Fayetteville with 12.0 days of rain, and January is the driest month with only 6.5 rainy days. There are 100.3 rainy days annually in Fayetteville, which is rainier than most places in Arkansas. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 21% chance of a rainy day.

An annual snowfall of 13.0 inches in Decatur means that it is less snowy than most places in Illinois.

An annual snowfall of 6.6 inches in Fayetteville means that it is snowier than most places in Arkansas.

January is the snowiest month in Decatur with 4.2 inches of snow, and 4 months of the year have significant snowfall.

January is the snowiest month in Fayetteville with 2.3 inches of snow, and 4 months of the year have significant snowfall.