Williamson, IL Climate


Reviews



Download our custom City Report to see exclusive
data on cost of living, crime, climate, and more.

Overview
Cost of Living
Crime
Climate
Interactive Map
Jobs
Weather
Schools
Education
Economy
Health
Religion
People
Politics & Voting
Housing Stats
Commute Time
Rankings
Reviews
Upgrade to Premium
United States / Illinois / St. Louis Metro Area / Madison County / Williamson / Zip Codes
The climate in Williamson, IL is typically quite pleasant. Summers are warm and humid with temperatures averaging in the mid-80s Fahrenheit, while winters are cold but mild with temperatures usually staying above freezing. The area gets an average of 40 inches of precipitation each year and experiences all four seasons. Spring and fall are especially beautiful times to visit, as temperatures hover around the upper 50s and low 60s with plenty of sunshine.

Williamson, Illinois gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Williamson averages 16 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 203 sunny days per year in Williamson. The US average is 205 sunny days.

Williamson gets some kind of precipitation, on average, 101 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 21
Rain: averages 40 inches of rain a year
Snow: averages 16 inches of snow a year

Bestplaces Comfort Index

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

7.7 Summer - 5.5 Winter
September, May and June are the most pleasant months in Williamson, while January and December are the least comfortable months.

  ClimateWilliamson, IllinoisUnited States
  39.9 in.38.1 in.
  16.0 in.27.8 in.
  101.4 days106.2 days
  203 days205 days
  88.2°85.8°
  20.9°21.7°
  7.27
  4.14.3
  604 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 Williamson with an average high temperature of 88.2°, which ranks it as warmer than most places in Illinois. In Williamson, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Williamson are May, September and June.
In Williamson, there are 32.2 days annually when the high temperature is over 90°, which is hotter than most places in Illinois.
January has the coldest nighttime temperatures for Williamson with an average of 20.9°. This is warmer than most places in Illinois.
In Williamson, there are 98.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.
In Williamson, there are 3.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.
The humidity can be uncomfortably heavy or close in Williamson 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 Williamson.
May is the wettest month in Williamson with 4.8 inches of rain, and the driest month is February with 2.2 inches. The wettest season is Summer with 30% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 39.9 inches in Williamson means that it is wetter than most places in Illinois.
May is the rainiest month in Williamson with 10.9 days of rain, and February is the driest month with only 6.9 rainy days. There are 101.4 rainy days annually in Williamson, 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 16.0 inches in Williamson means that it is less snowy than most places in Illinois. January is the snowiest month in Williamson with 5.5 inches of snow, and 5 months of the year have significant snowfall.
Reviews for Williamson
    See all ()
Write a Review

Start Your Review of Williamson

Jobs
Compare Williamson,
cost of living
Compare food, housing, utilities, and more in Williamson, Illinois to any other city in the US.


Privacy Policy  •  Terms of Use  •  Returns & Refunds
© Best Places. All rights reserved.