Zip 62420 (Casey, IL) Climate

The climate in 62420 Casey, IL is typically very warm and humid, with summers reaching average high temperatures of around 85 degrees Fahrenheit and lows of around 60 degrees Fahrenheit. Winters in this area are cold but mild, with temperatures ranging from 35 to 50 degrees Fahrenheit. The area receives about 35 inches of precipitation annually, with most of it falling during the spring and summer months. The area is also known for having frequent thunderstorms that often bring heavy rains and strong winds.

Casey (zip 62420), Illinois gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Casey (zip 62420) averages 14 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 200 sunny days per year in Casey (zip 62420). The US average is 205 sunny days.

Casey (zip 62420) gets some kind of precipitation, on average, 107 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 87 degrees
Winter Low: the January low is 21
Rain: averages 43 inches of rain a year
Snow: averages 14 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 62420 zip code is 7.2 (10=best), which means it is one of the most pleasant places in Illinois.

8.2 Summer - 5.3 Winter

September, May and June are the most pleasant months in the 62420 zip code, while January and December are the least comfortable months.

Climate	Casey, Illinois	United States
	43.3 in.	38.1 in.
	14.1 in.	27.8 in.
	106.9 days	106.2 days
	200 days	205 days
	86.5°	85.8°
	20.5°	21.7°
	7.2	7
	3.9	4.3
	646 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 62420 zip code with an average high temperature of 86.5°, which ranks it as warmer than most places in Illinois. In the 62420 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 62420 zip code are September, May and June.

In the 62420 zip code, there are 20.4 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

January has the coldest nighttime temperatures for the 62420 zip code with an average of 20.5°. This is warmer than most places in Illinois.

In the 62420 zip code, there are 103.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In the 62420 zip code, there are 3.1 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 the 62420 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 62420 zip code.

May is the wettest month in the 62420 zip code with 4.6 inches of rain, and the driest month is February with 2.4 inches. The wettest season is Summer with 28% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 43.3 inches in the 62420 zip code means that it is wetter than most places in Illinois.

May is the rainiest month in the 62420 zip code with 11.3 days of rain, and September is the driest month with only 6.8 rainy days. There are 106.9 rainy days annually in the 62420 zip code, which is about average compared to other places in Illinois. The rainiest season is Summer when it rains 30% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 14.1 inches in the 62420 zip code means that it is less snowy than most places in Illinois. January is the snowiest month in the 62420 zip code with 5.5 inches of snow, and 4 months of the year have significant snowfall.

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