United StatesAverage weather for Illinois in February
It's cold in February in Illinois with an average temperature of 5°C. Temperatures this month range from a low of -3°C to a high of 13°C. At night, you can expect temperatures between -9°C and 3°C.
Start of February
The month of February starts in Illinois with really cold temps, averaging around 2°C during the day and nights dipping to about -7°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry. Wear a heavy winter coat, sweater, long pants, beanie, and gloves.
Mid February
By mid-February, daytime temps rise to around 7°C, with nights around -4°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of February
By the end of February, the average daytime temperature in Illinois is around 9°C, while nighttime temps are about -2°C. A shower might pop up, but overall, the weather will be dry and sunny.
In February, there is an average of 77 mm of precipitation, spread over 7 days. Of the total precipitation, about 23 cm falls as snow in February. The wind speed is around 4 Bft, mostly coming from the Southwest.
Illinois in February |
New York | ||
|---|---|---|---|
 Average temperature |
5°C | 6°C | |
 Max. temperature |
13°C | 10°C | |
| Min. temperature |
-3°C | -5°C | |
 Total precipitation |
77 mm | 82 mm | |
| Rainy days |
7 days | 11 days | |
 Total snowfall |
23 cm | 34 cm | |
| Snowy days |
10 days | 12 days | |
January
UV index
The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.
Temperature records
With 23°C in 2017, Illinois reached the highest temperature in February over the past 10 years. The lowest daytime temperature in this month was -18°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of -24°C to a highest value of 12°C.
Check out the climate of Illinois for all months and discover the best travel time
The climate in Illinois is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Illinois to get the full picture of the climate.
Daily Temperature in February in Illinois
This chart shows the average daily high and low temperatures in February for Illinois, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in February in Illinois
The chart below shows the average daily precipitation in February for Illinois, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for February, you can expect about 7 days of precipitation in Illinois.
Daily Snowfall in February in Illinois
This chart shows the average daily snowfall in February in Illinois, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in February.
Daily UV index in February in Illinois
This chart shows the average daily UV index in February in Illinois, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in February in Illinois over the years
This chart shows the average temperature in February in Illinois, measured in degrees Celsius, over the past few years.
Total precipitation in February in Illinois over the years
This chart shows the average precipitation in February in Illinois, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in February in Illinois per year
This chart shows the average snowfall in February in Illinois, measured in centimeters, over the past few years.
Daily weather in February for Illinois
Click on any day in February to get detailed info about the usual weather on that day in Illinois. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in February in Illinois
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Average weather in Illinois by month
Click on a month below to see detailed weather info for Illinois. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
