Lombard, IL 

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Climate in Lombard, IL

The climate in Lombard, IL is largely temperate, with four distinct seasons. Summers are generally hot and humid, while winters can be cold and snowy. Spring often brings warm temperatures and heavy rainfall while autumn is usually mild and dry. Average temperatures tend to range from the high 20s in winter to the low 80s in summer, though these numbers can vary greatly between years. Rainfall averages about 30 inches annually and thunderstorms are common during spring and summer months.

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

Lombard averages 31 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 189 sunny days per year in Lombard. The US average is 205 sunny days.

Lombard gets some kind of precipitation, on average, 121 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 15
Rain: averages 39 inches of rain a year
Snow: averages 31 inches of snow a year


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

9 / 4.5

Summer   /   Winter
June, September and August are the most pleasant months in Lombard, while January and December are the least comfortable months.

Climate Averages
  Lombard, IllinoisUnited States
  38.7 in.38.1 in.
  31.2 in.27.8 in.
  120.5 days106.2 days
  189 days205 days
  718 ft.2443 ft.


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 Lombard with an average high temperature of 83.9°, which ranks it as cooler than most places in Illinois. In Lombard, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Lombard are June, September and August.

In Lombard, there are 9.3 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

January has the coldest nighttime temperatures for Lombard with an average of 15.3°. This is colder than most places in Illinois.

In Lombard, there are 135.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Lombard, there are 5.9 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 Lombard 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.

August is the wettest month in Lombard with 4.3 inches of rain, and the driest month is January with 1.9 inches. The wettest season is Autumn with 32% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 38.7 inches in Lombard means that it is about average compared to other places in Illinois.

May is the rainiest month in Lombard with 11.8 days of rain, and February is the driest month with only 8.2 rainy days. There are 120.5 rainy days annually in Lombard, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 31.2 inches in Lombard means that it is snowier than most places in Illinois. January is the snowiest month in Lombard with 10.2 inches of snow, and 6 months of the year have significant snowfall.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Lombard    4 Reviews
    A village with a heart - 9/26/2023
    I lived in Lombard for 19 years before moving out of state in 2020. My primary issue with Illinois, not Lombard per so, is the real estate tax rate. I retired and... Read More

    Start Your Review of Lombard

    Above Average in DuPage Co - 4/6/2007
    Lombard is a good, solid suburban-Chicago town. Mid-west values, limited crime with sound school system. Neighboring Glen Ellyn is more affluent with matching property... Read More

    Very low crime rate. Love It! - 2/28/2007
    Very low crime rate. Love... Read More

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