Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average snowfall in March
- Average snowfall days in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
The start of March signals a clear increase in the average high-temperature, soaring from a subzero cold 29.8°F (-1.2°C) in February to a frosty 44.2°F (6.8°C). Shannon temperatures generally rest at a low of 29.7°F (-1.3°C) during the March nights.Humidity
In March, the average relative humidity is 78%.Rainfall
In Shannon, during March, the rain falls for 10.6 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, there are 130.8 rainfall days, and 17.95" (456mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Shannon, in March, during 5.3 snowfall days, 0.87" (22mm) of snow is typically accumulated. Throughout the year, there are 39.2 snowfall days, and 8.62" (219mm) of snow is accumulated.Daylight
In March, the average length of the day is 11h and 58min.On the first day of the month, sunrise is at 6:32 am and sunset at 5:49 pm CST. On the last day of March, sunrise is at 6:41 am and sunset at 7:24 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 6.2h.UV index
In Shannon, the average daily maximum UV index in March is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In March, the maximum UV index of 3 suggests this advice:
Prioritize safety - Recommendations to avert sunburn are shared. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during March?
What is the average humidity in March?
How much does it rain in March?
How many days does it snow in March?
How many hours of daylight does Shannon have in March?
What time are sunrise and sunset in March?
When does Daylight Saving Time (DST) start in March?
How many hours of sunshine does Shannon have in March?
How high is the UV index in March?
Average temperature in March
Shannon, IL
- Average high temperature in March: 44.2°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in March: 29.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in March
Shannon, IL
- Average pressure in March: 30.08"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in March
Shannon, IL
- Average wind speed in March: 9.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in March
Shannon, IL
- Average humidity in March: 78%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall in March
Shannon, IL
- Average rainfall in March: 1.1"
The wettest month (with the highest rainfall) is May (2.76").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in March
Shannon, IL
- Average rainfall days in March: 10.6 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in March
Shannon, IL
- Average snowfall in March: 0.87"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in March
Shannon, IL
- Average snowfall days in March: 5.3 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Shannon, IL
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in March: 6h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in March
Shannon, IL
- Average sunshine days in March: 16.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (10 days).
Average UV index in March
Shannon, IL
- Average UV index in March: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in March
Shannon, IL
- Average cloud cover in March: 50
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in March
Shannon, IL
- Average visibility in March: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Shannon, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location