Zip 62269 (OFallon, IL) Climate

The climate in 62269 OFallon, IL is mild and temperate with four distinct seasons. Summers tend to be warm and humid, while winters are cold and often snowy. Spring and fall bring a variety of temperatures, with milder days intermixed with cooler ones. The area averages around 36 inches of rain per year, making it an ideal place for outdoor activities year-round. Average high temperatures during the summer months range from the upper 70s to mid 80s Fahrenheit (24 to 29 degrees Celsius), while winter temperatures stay close to the freezing mark or slightly below.

OFallon (zip 62269), Illinois gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.

OFallon (zip 62269) averages 12 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 202 sunny days per year in OFallon (zip 62269). The US average is 205 sunny days.

OFallon (zip 62269) gets some kind of precipitation, on average, 96 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 89 degrees
Winter Low: the January low is 22
Rain: averages 43 inches of rain a year
Snow: averages 12 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 62269 zip code is 7.2 (10=best), which means it is one of the most pleasant places in Illinois.

7.3 Summer - 5.7 Winter

September, May and October are the most pleasant months in the 62269 zip code, while January and December are the least comfortable months.

Climate	OFallon, Illinois	United States
	43.1 in.	38.1 in.
	11.6 in.	27.8 in.
	96.3 days	106.2 days
	202 days	205 days
	89.2°	85.8°
	22.0°	21.7°
	7.2	7
	4.1	4.3
	548 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 the 62269 zip code with an average high temperature of 89.2°, which ranks it as one of the hottest places in Illinois. In the 62269 zip code, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 62269 zip code are May, September and October.

In the 62269 zip code, there are 39.8 days annually when the high temperature is over 90°, which is one of the hottest places in Illinois.

January has the coldest nighttime temperatures for the 62269 zip code with an average of 22.0°. This is warmer than most places in Illinois.

In the 62269 zip code, there are 101.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In the 62269 zip code, there are 1.6 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 the 62269 zip code 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 the 62269 zip code.

May is the wettest month in the 62269 zip code with 4.9 inches of rain, and the driest month is February with 2.4 inches. The wettest season is Summer with 28% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 43.1 inches in the 62269 zip code means that it is wetter than most places in Illinois.

May is the rainiest month in the 62269 zip code with 10.9 days of rain, and February is the driest month with only 6.6 rainy days. There are 96.3 rainy days annually in the 62269 zip code, which is one of the least rainy 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 11.6 inches in the 62269 zip code means that it is less snowy than most places in Illinois. January is the snowiest month in the 62269 zip code with 3.8 inches of snow, and 4 months of the year have significant snowfall.

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