Round Lake Park, IL Climate


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Round Lake Park, IL enjoys a humid continental climate, characterized by moderately warm summers and cold, snowy winters. In summer, temperatures typically range between 70-80 degrees while in winter they can dip down to around 20 degrees. Precipitation is prevalent throughout the year with annual snowfall totals ranging from 18 to 25 inches. Overall, the climate in Round Lake Park is generally pleasant for outdoor activities and adventures.

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

Round Lake Park averages 43 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 192 sunny days per year in Round Lake Park. The US average is 205 sunny days.

Round Lake Park 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 82 degrees
Winter Low: the January low is 14
Rain: averages 37 inches of rain a year
Snow: averages 43 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Round Lake Park is 6.7 (10=best), which means it is one of the least comfortable places in Illinois.

9.1 Summer - 4.2 Winter
June, September and August are the most pleasant months in Round Lake Park, while January and December are the least comfortable months.

  ClimateRound Lake Park, IllinoisUnited States
    Unlock38.1 in.
  43.2 in.  Unlock
    Unlock106.2 days
  192 days  Unlock
  82.1°85.8°
    Unlock21.7°
  6.7  Unlock
    Unlock4.3
  791 ft.  Unlock
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 Round Lake Park with an average high temperature of 82.1°, which ranks it as one of the coolest places in Illinois. In Round Lake Park, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Round Lake Park are June, August and July.
In Round Lake Park, there are 8.1 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 Round Lake Park with an average of 14.0°. This is colder than most places in Illinois.
In Round Lake Park, there are 133.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.
In Round Lake Park, there are 10.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.
The humidity is usually comfortable in Round Lake Park 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 Round Lake Park with 4.1 inches of rain, and the driest month is January with 1.7 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 36.6 inches in Round Lake Park means that it is one of the driest places in Illinois.
May is the rainiest month in Round Lake Park with 12.3 days of rain, and February is the driest month with only 8.7 rainy days. There are 120.9 rainy days annually in Round Lake Park, 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 43.2 inches in Round Lake Park means that it is one of the snowiest places in Illinois. January is the snowiest month in Round Lake Park with 12.9 inches of snow, and 6 months of the year have significant snowfall.
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