Jonesboro, IL Climate


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United States / Illinois / No Metro Area / Union County / Jonesboro / Zip Codes
Jonesboro, IL has a humid continental climate with warm, wet summers and cold, moderately snowy winters. During the summer months, temperatures average in the high 70s with plenty of sunshine and mild humidity. During the winter months, temperatures usually range from the low 20s up to the mid-30s, with occasional snowfall and icy conditions. All four seasons are clearly defined in Jonesboro, making it an ideal spot for outdoor activities year round.

Jonesboro, Illinois gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Jonesboro averages 10 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 219 sunny days per year in Jonesboro. The US average is 205 sunny days.

Jonesboro gets some kind of precipitation, on average, 104 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 24
Rain: averages 49 inches of rain a year
Snow: averages 10 inches of snow a year


Bestplaces Comfort Index

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

7.1 Summer - 5.8 Winter
September, May and October are the most pleasant months in Jonesboro, while January and December are the least comfortable months.

  ClimateJonesboro, IllinoisUnited States
  48.6 in.38.1 in.
  10.0 in.27.8 in.
  103.9 days106.2 days
  219 days205 days
  89.2°85.8°
  23.7°21.7°
  7.27
  4.34.3
  564 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 Jonesboro with an average high temperature of 89.2°, which ranks it as one of the hottest places in Illinois. In Jonesboro, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Jonesboro are May, September and October.
In Jonesboro, there are 40.0 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 Jonesboro with an average of 23.7°. This is one of the warmest places in Illinois.
In Jonesboro, there are 92.6 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Illinois.
In Jonesboro, there are 1.7 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 Jonesboro 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 Jonesboro.
May is the wettest month in Jonesboro with 5.6 inches of rain, and the driest month is August with 3.1 inches. The wettest season is Summer with 30% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 48.6 inches in Jonesboro means that it is one of the wettest places in Illinois.
May is the rainiest month in Jonesboro with 11.1 days of rain, and September is the driest month with only 6.6 rainy days. There are 103.9 rainy days annually in Jonesboro, 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 Autumn with only a 22% chance of a rainy day.
An annual snowfall of 10.0 inches in Jonesboro means that it is one of the least snowy places in Illinois. February is the snowiest month in Jonesboro with 3.0 inches of snow, and 4 months of the year have significant snowfall.
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