March weather forecastIlliopolis, IL
March
Weather in March
March, the first month of the spring in Illiopolis, is a fresh month, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 50°F (10°C).Temperature
The start of March brings a shift in the average high-temperature, increasing from February's icy 37.6°F (3.1°C) to a cool 50°F (10°C). Illiopolis encounters a steady low-temperature average of 35.2°F (1.8°C) throughout the month of March.Humidity
In Illiopolis, the average relative humidity in March is 75%.Rainfall
In Illiopolis, during March, the rain falls for 11.7 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 141.8 rainfall days, and 22.24" (565mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In March, it is snowing for 2.9 days. Throughout March, 0.94" (24mm) of snow is accumulated. Throughout the year, there are 29.7 snowfall days, and 7.13" (181mm) of snow is accumulated.Daylight
In Illiopolis, the average length of the day in March is 11h and 59min.On the first day of the month, sunrise is at 6:28 am and sunset at 5:49 pm CST. On the last day of March, sunrise is at 6:41 am and sunset at 7:20 pm CDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.
Sunshine
In March, the average sunshine is 6.4h.UV index
In Illiopolis, the average daily maximum UV index in March is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 3 during March morphs into the following directions:
Be vigilant - Preventing sunburn is recommended. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Illiopolis, IL
- Average high temperature in March: 50°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in March: 35.2°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in March
Illiopolis, IL
- Average pressure in March: 30.08"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in March
Illiopolis, IL
- Average wind speed in March: 10.3mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in March
Illiopolis, IL
- Average humidity in March: 75%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in March
Illiopolis, IL
- Average rainfall in March: 1.61"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days in March
Illiopolis, IL
- Average rainfall days in March: 11.7 days
The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in March
Illiopolis, IL
- Average snowfall in March: 0.94"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in March
Illiopolis, IL
- Average snowfall days in March: 2.9 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in March /
Average sunshine in March
Illiopolis, IL
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in March: 6h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in March
Illiopolis, IL
- Average sunshine days in March: 15.7 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in March
Illiopolis, IL
- Average UV index in March: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in March
Illiopolis, IL
- Average cloud cover in March: 48
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and September (Cloud cover 31).
Average visibility in March
Illiopolis, IL
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





