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 shift into March is accompanied by a temperature increase, with the average high-temperature rising from an icy 36.7°F (2.6°C) in February to a chilly 49.5°F (9.7°C). In March, the average low-temperature records at a wintry 34.7°F (1.5°C) during the nights.Humidity
In March, the average relative humidity is 75%.Rainfall
In March, the rain falls for 11.8 days. Throughout March, 1.38" (35mm) of precipitation is accumulated. Throughout the year, in McLean, Illinois, there are 135 rainfall days, and 17.72" (450mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in McLean, Illinois. In McLean, Illinois, in March, during 3 snowfall days, 1.22" (31mm) of snow is typically accumulated. In McLean, during the entire year, snow falls for 27.1 days and aggregates up to 7.2" (183mm) of snow.Daylight
In March, the average length of the day in McLean is 11h and 59min.On the first day of the month, sunrise is at 6:28 am and sunset at 5:48 pm CST. On the last day of March, sunrise is at 6:40 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 McLean, the average sunshine in March is 6.5h.UV index
The average daily maximum UV index in March in McLean is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In March, the maximum UV index of 3 suggests these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are March temperatures in McLean?
What is the average humidity in March in McLean?
How much does it rain in McLean in March?
How many days does it snow in March in McLean?
How many hours of daylight does McLean have in March?
When are sunrise and sunset in March in McLean?
When does Daylight Saving Time (DST) start in March in McLean?
How many hours of sunshine does McLean have in March?
What is the UV index intensity in March in McLean?
Average temperature in March
McLean, IL
- Average high temperature in March: 49.5°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in March: 34.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in March
McLean, 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 (29.92"Hg).
Average wind speed in March
McLean, IL
- Average wind speed in March: 10.3mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in March
McLean, IL
- Average humidity in March: 75%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in March
McLean, IL
- Average rainfall in March: 1.38"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in March
McLean, IL
- Average rainfall days in March: 11.8 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in March
McLean, IL
- Average snowfall in March: 1.22"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in March
McLean, IL
- Average snowfall days in March: 3 days
The month with the highest number of snowfall days is January (9.5 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
McLean, 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in March
McLean, IL
- Average sunshine days in March: 16.3 days
The months with the most sunshine days are November and December (20 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in March
McLean, 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
McLean, IL
- Average cloud cover in March: 47
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in March
McLean, 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).
McLean, Illinois, USA
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