Rockford, IL Climate


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Rockford, IL enjoys a humid continental climate with four distinct seasons. Summers bring hot and humid weather, with temperatures rising into the high 80s and occasionally reaching the low 90s. Winters are cold with temperatures dropping into the teens and snowfall is common in December, January, and February. Spring and fall are moderate with mild temperatures averaging in the mid-50s to low 70s. Precipitation is relatively balanced throughout the year, bringing rain storms during all four seasons.

Rockford, Illinois gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Rockford averages 35 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 Rockford. The US average is 205 sunny days.

Rockford gets some kind of precipitation, on average, 116 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 13
Rain: averages 37 inches of rain a year
Snow: averages 35 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Rockford is 6.8 (10=best), which means it is less comfortable than most places in Illinois.

9 Summer - 4.3 Winter
June, September and August are the most pleasant months in Rockford, while January and December are the least comfortable months.

  ClimateRockford, IllinoisUnited States
  37.1 in.38.1 in.
  35.1 in.27.8 in.
  116.0 days106.2 days
  188 days205 days
  83.7°85.8°
  12.7°21.7°
  6.87
  3.54.3
  718 ft.2443 ft.
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Rockford with an average high temperature of 83.7°, which ranks it as cooler than most places in Illinois. In Rockford, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rockford are June, September and August.
In Rockford, 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 Rockford with an average of 12.7°. This is one of the coldest places in Illinois.
In Rockford, there are 138.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.
In Rockford, there are 12.9 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Illinois.
The humidity is usually comfortable in Rockford 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.
June is the wettest month in Rockford with 4.9 inches of rain, and the driest month is January with 1.4 inches. The wettest season is Autumn with 37% of yearly precipitation and 13% occurs in Spring, which is the driest season. The annual rainfall of 37.1 inches in Rockford means that it is drier than most places in Illinois.
May is the rainiest month in Rockford with 12.0 days of rain, and February is the driest month with only 8.0 rainy days. There are 116.0 rainy days annually in Rockford, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.
An annual snowfall of 35.1 inches in Rockford means that it is one of the snowiest places in Illinois. December is the snowiest month in Rockford with 11.4 inches of snow, and 6 months of the year have significant snowfall.
Reviews for Rockford
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Over 4 years ago

I've lived here my whole life . I love  More

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I was raised in the area and lived here 3/4 of my life. Rockford has definitely made efforts to bring events into the area so there are things to do and they have  More

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Over 5 years ago

Rockford has made great strides in the past 20 years. Downtown used to be a ghost town. Now, there are activities almost every weekend. City government has worked to  More

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