March weather forecastSouth Barrington, IL
March
Weather in March
March, the first month of the spring in South Barrington, is a chilly month, with temperature in the range of an average high of 44.1°F (6.7°C) and an average low of 30.7°F (-0.7°C).Temperature
As March begins, there is an increase in the average high-temperature, moving from a subzero cold 31.5°F (-0.3°C) in February to a frosty 44.1°F (6.7°C). The nights of March anticipate an average low-temperature of 30.7°F (-0.7°C).Humidity
In March, the average relative humidity is 76%.Rainfall
In South Barrington, during March, the rain falls for 10.8 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, there are 145.9 rainfall days, and 24.72" (628mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In South Barrington, during March, snow falls for 6.7 days and regularly aggregates up to 1.3" (33mm) of snow. Throughout the year, there are 47.6 snowfall days, and 15.83" (402mm) 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 6:26 am and sunset at 5:43 pm CST. On the last day of the month, sunrise is at 6:35 am and sunset at 7:17 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 South Barrington, the average sunshine in March is 5.9h.UV index
The average daily maximum UV index in March is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 during March translates into the following guidance:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
South Barrington, IL
- Average high temperature in March: 44.1°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in March: 30.7°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 (16.5°F).
Average pressure in March
South Barrington, IL
- Average pressure in March: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in March
South Barrington, IL
- Average wind speed in March: 9.4mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in March
South Barrington, IL
- Average humidity in March: 76%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in March
South Barrington, IL
- Average rainfall in March: 1.46"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.14").
Average rainfall days in March
South Barrington, IL
- Average rainfall days in March: 10.8 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in March
South Barrington, IL
- Average snowfall in March: 1.3"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in March
South Barrington, IL
- Average snowfall days in March: 6.7 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
South Barrington, 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: 5h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in March
South Barrington, IL
- Average sunshine days in March: 14.1 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in March
South Barrington, IL
- Average UV index in March: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in March
South Barrington, IL
- Average cloud cover in March: 52
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July, August and September (Cloud cover 32).
Average visibility in March
South Barrington, IL
- Average visibility in March: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





