Merrionette Park, IL Climate


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Merrionette Park, IL has a humid continental climate with hot summers and cold winters. The area receives an average of 36 inches of rain per year and averages around 30 inches of snowfall annually. During the summer months the temperature can reach into the high 90s with heat indexes pushing into the triple digits. In the winter months temperatures can dip below freezing for extended periods of time. Despite this, Merrionette Park is a wonderful place to experience all four seasons and is very mild in temperature when compared to other parts of Illinois.

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

Merrionette Park averages 32 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 191 sunny days per year in Merrionette Park. The US average is 205 sunny days.

Merrionette Park 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 20
Rain: averages 39 inches of rain a year
Snow: averages 32 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Merrionette Park is 7.0 (10=best), which means it is about average compared to other places in Illinois.

8.9 Summer - 4.7 Winter
September, June and August are the most pleasant months in Merrionette Park, while January and December are the least comfortable months.

  ClimateMerrionette Park, IllinoisUnited States
  38.9 in.38.1 in.
  31.7 in.27.8 in.
  124.4 days106.2 days
  191 days205 days
  84.1°85.8°
  19.6°21.7°
  77
  3.64.3
  620 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 Merrionette Park with an average high temperature of 84.1°, which ranks it as cooler than most places in Illinois. In Merrionette Park, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Merrionette Park are June, September and August.
In Merrionette Park, there are 13.9 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.
January has the coldest nighttime temperatures for Merrionette Park with an average of 19.6°. This is warmer than most places in Illinois.
In Merrionette Park, there are 101.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.
In Merrionette Park, there are 3.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.
The humidity is usually comfortable in Merrionette 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.
May is the wettest month in Merrionette Park with 4.2 inches of rain, and the driest month is February with 1.9 inches. The wettest season is Autumn with 31% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 38.9 inches in Merrionette Park means that it is about average compared to other places in Illinois.
May is the rainiest month in Merrionette Park with 11.7 days of rain, and February is the driest month with only 8.3 rainy days. There are 124.4 rainy days annually in Merrionette Park, which is one of the rainiest places in Illinois. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 24% chance of a rainy day.
An annual snowfall of 31.7 inches in Merrionette Park means that it is snowier than most places in Illinois. January is the snowiest month in Merrionette Park with 10.1 inches of snow, and 6 months of the year have significant snowfall.
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