Pontoon Beach, IL Climate


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United States / Illinois / St. Louis Metro Area / Madison County / Pontoon Beach / Zip Codes
Pontoon Beach, IL has a humid continental climate with warm summers and cold winters. Average temperatures range from highs in the summer of around 80-90°F to lows in the winter of 21-31°F. In the summer months, Pontoon Beach experiences rain throughout the season as well as humidity levels that can reach up to 85%. Winters are generally dry but precipitation is possible. Snowfall is light but blizzards have been known to occur.

Pontoon Beach, Illinois gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Pontoon Beach averages 15 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 201 sunny days per year in Pontoon Beach. The US average is 205 sunny days.

Pontoon Beach gets some kind of precipitation, on average, 103 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 88 degrees
Winter Low: the January low is 22
Rain: averages 42 inches of rain a year
Snow: averages 15 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Pontoon Beach is 7.2 (10=best), which means it is one of the most pleasant places in Illinois.

7.5 Summer - 5.6 Winter
September, May and October are the most pleasant months in Pontoon Beach, while January and December are the least comfortable months.

  ClimatePontoon Beach, IllinoisUnited States
    Unlock38.1 in.
  14.8 in.  Unlock
    Unlock106.2 days
  201 days  Unlock
  88.4°85.8°
    Unlock21.7°
  7.2  Unlock
    Unlock4.3
  417 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 Pontoon Beach with an average high temperature of 88.4°, which ranks it as one of the hottest places in Illinois. In Pontoon Beach, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Pontoon Beach are May, September and June.
In Pontoon Beach, there are 34.7 days annually when the high temperature is over 90°, which is hotter than most places in Illinois.
January has the coldest nighttime temperatures for Pontoon Beach with an average of 22.4°. This is one of the warmest places in Illinois.
In Pontoon Beach, there are 93.8 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Illinois.
In Pontoon Beach, there are 1.5 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Illinois.
The humidity can be uncomfortably heavy or close in Pontoon Beach during the summer months. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most humid months in Pontoon Beach.
May is the wettest month in Pontoon Beach with 5.1 inches of rain, and the driest month is January with 2.4 inches. The wettest season is Summer with 29% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 41.8 inches in Pontoon Beach means that it is wetter than most places in Illinois.
May is the rainiest month in Pontoon Beach with 11.3 days of rain, and September is the driest month with only 6.8 rainy days. There are 103.3 rainy days annually in Pontoon Beach, which is less rainy than most places in Illinois. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 22% chance of a rainy day.
An annual snowfall of 14.8 inches in Pontoon Beach means that it is less snowy than most places in Illinois. January is the snowiest month in Pontoon Beach with 4.8 inches of snow, and 5 months of the year have significant snowfall.
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David · Granite City, IL
Keystone Kops Police Department
Over 18 years ago

The worst police department ever. Juvenile office hates kids even more than he hates everyone else. No time to deal with real crime because they are too busy writing  More

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David · Granite City, IL
Inspection Process is a Nightmare!!
Over 19 years ago

If I had it to do over, I would never move into this  More

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