The weather in March in Illinois

It's cool in March in Illinois with an average temperature of 10°C. Temperatures this month range from a low of 5°C to a high of 15°C. At night, you can expect temperatures between -5°C and 4°C.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in March for Illinois, United States. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 26°C in 2017, Illinois reached the highest temperature in March over the past 10 years. The lowest daytime temperature in this month was -11°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of -21°C to a highest value of 14°C.

Precipitation and snowfall

In March, there is an average of 70 mm of precipitation, spread over 10 days. Of the total precipitation, about 6,6 cm falls as snow in March. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in March for Illinois

Click on any day in March 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.

1

8° / -2°

2

5° / -4°

3

5° / -4°

4

6° / -5°

5

7° / -3°

6

9° / -2°

7

10° / -1°

8

11° / 1°

9

11° / 2°

10

9° / 2°

11

9° / 0°

12

8° / -1°

13

10° / 0°

14

11° / 2°

15

12° / 0°

16

11° / 2°

17

11° / 2°

18

8° / 0°

19

11° / 1°

20

13° / 1°

21

13° / 2°

22

11° / 2°

23

10° / 3°

24

10° / 3°

25

10° / 2°

26

11° / 1°

27

12° / 3°

28

12° / 3°

29

13° / 3°

30

15° / 4°

31

13° / 4°

Start of March

The month of March starts in Illinois with cold temps, averaging around 9°C during the day and nights around -1°C.

Mid March

By mid-March, daytime temps rise to around 11°C, with nights around 1°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of March

By the end of March, the average daytime temperature in Illinois is around 12°C, while nighttime temps are about 3°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

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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.

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.

Temperature charts

These charts show the average temperatures in March in Illinois, United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in March in Illinois

Temperature in March in Illinois over the years

Precipitation charts

These charts show the average amount of precipitation in March in Illinois, United States. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in March in Illinois

Total precipitation in March in Illinois over the years

Daily Snowfall in March in Illinois

Snowfall in March in Illinois per year

Daily UV index in March in Illinois

This chart shows the average daily UV index in March 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.

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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.