Preston Heights, IL Climate


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Preston Heights, IL is located in the midwestern United States, and as such experiences a temperate climate with four distinct seasons. Summers are hot and humid with average temperatures in the mid-70s, while winters can be frigid with temperatures often dipping below freezing. Rainfall is spread throughout the year, typically seeing around 35 inches annually. Snowfall can vary from season to season but generally averages out at around 20 inches per year. Overall, the climate of Preston Heights provides for pleasant conditions most of the year, making it an ideal place to live and raise a family.

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

Preston Heights averages 28 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 186 sunny days per year in Preston Heights. The US average is 205 sunny days.

Preston Heights 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 16
Rain: averages 39 inches of rain a year
Snow: averages 28 inches of snow a year


Bestplaces Comfort Index

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

8.9 Summer - 4.5 Winter
June, September and August are the most pleasant months in Preston Heights, while January and December are the least comfortable months.

  ClimatePreston Heights, IllinoisUnited States
  38.9 in.38.1 in.
  27.6 in.27.8 in.
  124.4 days106.2 days
  186 days205 days
  84.2°85.8°
  16.0°21.7°
  6.97
  3.74.3
  630 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 Preston Heights with an average high temperature of 84.2°, which ranks it as cooler than most places in Illinois. In Preston Heights, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Preston Heights are September, June and August.
In Preston Heights, there are 12.5 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.
January has the coldest nighttime temperatures for Preston Heights with an average of 16.0°. This is about average compared to other places in Illinois.
In Preston Heights, there are 123.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.
In Preston Heights, there are 7.1 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 Preston Heights 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.
July is the wettest month in Preston Heights with 4.6 inches of rain, and the driest month is January with 1.8 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 38.9 inches in Preston Heights means that it is about average compared to other places in Illinois.
May is the rainiest month in Preston Heights with 12.4 days of rain, and September is the driest month with only 7.8 rainy days. There are 124.4 rainy days annually in Preston Heights, which is one of the rainiest places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.
An annual snowfall of 27.6 inches in Preston Heights means that it is snowier than most places in Illinois. December is the snowiest month in Preston Heights with 8.6 inches of snow, and 5 months of the year have significant snowfall.
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