Knoxville, IL Climate


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United States / Illinois / Galesburg Metro Area / Knox County / Knoxville / Zip Codes
Knoxville, IL is known for its temperate climate, with hot summers and cold winters. The average summer temperature is around 78°F (25°C), while winter temperatures average around 22°F (-6°C). Rainfall is fairly consistent year-round, with an average of 39 inches annually. Snowfall in the area averages 17 inches yearly, with winter months generally seeing the most snow. These temperatures make Knoxville a great place to enjoy outdoor activities during all seasons.

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

Knoxville averages 24 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 195 sunny days per year in Knoxville. The US average is 205 sunny days.

Knoxville gets some kind of precipitation, on average, 108 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 14
Rain: averages 39 inches of rain a year
Snow: averages 24 inches of snow a year

Bestplaces Comfort Index

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

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

  ClimateKnoxville, IllinoisUnited States
  38.9 in.38.1 in.
  23.8 in.27.8 in.
  107.5 days106.2 days
  195 days205 days
  84.0°85.8°
  13.6°21.7°
  77
  3.74.3
  781 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 Knoxville with an average high temperature of 84.0°, which ranks it as cooler than most places in Illinois. In Knoxville, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Knoxville are September, June and August.
In Knoxville, there are 10.1 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 Knoxville with an average of 13.6°. This is colder than most places in Illinois.
In Knoxville, there are 133.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.
In Knoxville, 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 Knoxville but some summer months can be unpleasant. July is the most humid month, though humidity is low for most of the year. The most humid months in Knoxville are July, August and June.
May is the wettest month in Knoxville with 4.6 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 38.9 inches in Knoxville means that it is about average compared to other places in Illinois.
May is the rainiest month in Knoxville with 11.6 days of rain, and February is the driest month with only 7.0 rainy days. There are 107.5 rainy days annually in Knoxville, which is about average compared to other places in Illinois. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 22% chance of a rainy day.
An annual snowfall of 23.8 inches in Knoxville means that it is snowier than most places in Illinois. December is the snowiest month in Knoxville with 7.2 inches of snow, and 5 months of the year have significant snowfall.
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