Roanoke, IL Climate


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United States / Illinois / Peoria Metro Area / Woodford County / Roanoke / Zip Codes
Roanoke, IL has a humid continental climate. The summers are hot and humid with occasional thunderstorms, while the winters tend to be cold and snowy. The average temperature for the year is around 50°F (10°C), ranging from an average low of 25°F (-4°C) in January to an average high of 75°F (24°C) in July. Rain is common throughout the year, with about 40 inches of precipitation each year.

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

Roanoke averages 20 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 190 sunny days per year in Roanoke. The US average is 205 sunny days.

Roanoke 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 86 degrees
Winter Low: the January low is 15
Rain: averages 38 inches of rain a year
Snow: averages 20 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Roanoke is 7.1 (10=best), which means it is more comfortable than most places in Illinois.

8.6 Summer - 5 Winter
June, September and May are the most pleasant months in Roanoke, while January and December are the least comfortable months.

  ClimateRoanoke, IllinoisUnited States
    Unlock38.1 in.
  19.7 in.  Unlock
    Unlock106.2 days
  190 days  Unlock
  85.7°85.8°
    Unlock21.7°
  7.1  Unlock
    Unlock4.3
  728 ft.  Unlock
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 Roanoke with an average high temperature of 85.7°, which ranks it as about average compared to other places in Illinois. In Roanoke, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Roanoke are September, May and June.
In Roanoke, there are 21.0 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 Roanoke with an average of 14.5°. This is colder than most places in Illinois.
In Roanoke, there are 133.1 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.
In Roanoke, there are 9.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.
The humidity is usually comfortable in Roanoke 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 Roanoke are July, August and June.
May is the wettest month in Roanoke with 4.5 inches of rain, and the driest month is February with 1.8 inches. The wettest season is Autumn with 30% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 38.4 inches in Roanoke means that it is about average compared to other places in Illinois.
May is the rainiest month in Roanoke with 10.9 days of rain, and February is the driest month with only 6.5 rainy days. There are 103.7 rainy days annually in Roanoke, which is less rainy than most 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 19.7 inches in Roanoke means that it is about average compared to other places in Illinois. January is the snowiest month in Roanoke with 6.3 inches of snow, and 6 months of the year have significant snowfall.
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