March weather forecast
Illiopolis, IL

Share

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.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are March temperatures?

In March, in Illiopolis, the average high-temperature is 50°F (10°C), and the average low-temperature is 35.2°F (1.8°C).

What is the average humidity in March?

In Illiopolis, the average relative humidity in March is 75%.

How many days does it rain in March?

In Illiopolis, in March, during 11.7 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

How many days does it snow in March?

In March, it is snowing for 2.9 days. Throughout March, 0.94" (24mm) of snow is accumulated.

How many hours of daylight does Illiopolis have in March?

In Illiopolis, Illinois, the average day length in March is 11h and 59min.

When are sunrise and sunset in March?

On the first day of March, sunrise is at 6:28 am and sunset at 5:49 pm CST. On the last day of the month, sunrise is at 6:41 am and sunset at 7:20 pm CDT.

When does Daylight Saving Time (DST) start in March?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March?

In Illiopolis, the average sunshine duration in March is 6.4h.

What is the UV index intensity in March in Illiopolis?

In Illiopolis, the average daily maximum UV index in March is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Illiopolis, IL

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 2min

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 - 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 - 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 - 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 - 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).

Illiopolis, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location