March weather forecastSaint David, IL
March
Weather in March
The first month of the spring, March, is a frosty month in Saint David, Illinois, with an average temperature varying between 49.6°F (9.8°C) and 34.3°F (1.3°C).Temperature
In Saint David, the onset of March comes with an increased average high-temperature, moving from February's icy 36.3°F (2.4°C) to a chilly 49.6°F (9.8°C). Throughout March, an average nighttime temperature of 34.3°F (1.3°C) is experienced in Saint David.Humidity
The average relative humidity in March is 75%.Rainfall
In Saint David, in March, it is raining for 11.9 days, with typically 1.65" (42mm) of accumulated precipitation. In Saint David, Illinois, during the entire year, the rain falls for 131.7 days and collects up to 22.48" (571mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In March, it is snowing for 3.3 days. Throughout March, 1.34" (34mm) of snow is accumulated. Throughout the year, there are 27.4 snowfall days, and 9.21" (234mm) of snow is accumulated.Daylight
The average length of the day in March is 11h and 58min.On the first day of March, sunrise is at 6:32 am and sunset at 5:52 pm CST. On the last day of the month, sunrise is at 6:44 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 Saint David, the average sunshine in March is 6.5h.UV index
In Saint David, the average daily maximum UV index in March is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In March, a regular UV index of 3 translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Saint David, IL
- Average high temperature in March: 49.6°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in March: 34.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in March
Saint David, IL
- Average pressure in March: 30.08"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in March
Saint David, IL
- Average wind speed in March: 10.3mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in March
Saint David, IL
- Average humidity in March: 75%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in March
Saint David, IL
- Average rainfall in March: 1.65"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is December (0.94").
Average rainfall days in March
Saint David, IL
- Average rainfall days in March: 11.9 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in March
Saint David, IL
- Average snowfall in March: 1.34"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in March
Saint David, IL
- Average snowfall days in March: 3.3 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, August and September (0 days).
Average daylight in March /
Average sunshine in March
Saint David, 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 18min).
- Average sunshine in March: 6h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in March
Saint David, IL
- Average sunshine days in March: 16.3 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in March
Saint David, IL
- Average UV index in March: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in March
Saint David, IL
- Average cloud cover in March: 48
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in March
Saint David, IL
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





