March weather forecastCahokia, IL
March
Weather in March
The first month of the spring, March, is a fresh month in Cahokia, Illinois, with an average temperature fluctuating between 54.5°F (12.5°C) and 37.9°F (3.3°C).Temperature
The onset of March brings a rise in the average high-temperature, elevating from a wintry 42.4°F (5.8°C) in February to a cool 54.5°F (12.5°C). During March, Cahokia experiences a consistent low-temperature average of 37.9°F (3.3°C).Humidity
In Cahokia, Illinois, the average relative humidity in March is 76%.Rainfall
In Cahokia, Illinois, in March, it is raining for 14.4 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 152.2 rainfall days, and 36.46" (926mm) of precipitation is accumulated.Snowfall
Months with snowfall in Cahokia are January through March, November and December. March is the last month it regularly snows. During 2.4 snowfall days, in March, Cahokia aggregates 1.1" (28mm) of snow. Throughout the year, in Cahokia, there are 20.2 snowfall days, and 7.44" (189mm) of snow is accumulated.Daylight
In Cahokia, Illinois, the average length of the day in March is 11h and 59min.On the first day of the month, sunrise is at 6:31 am and sunset at 5:54 pm CST. On the last day of March, in Cahokia, sunrise is at 6:45 am and sunset at 7:23 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
The average sunshine in March is 6.4h.UV index
In March, the average daily maximum UV index in Cahokia is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In March, the maximum UV index of 4 transforms into these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Cahokia, IL
- Average high temperature in March: 54.5°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in March: 37.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in March
Cahokia, IL
- Average pressure in March: 30.07"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in March
Cahokia, IL
- Average wind speed in March: 9mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in March
Cahokia, IL
- Average humidity in March: 76%
The months with the highest relative humidity are May and July (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in March
Cahokia, IL
- Average rainfall in March: 2.72"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in March
Cahokia, IL
- Average rainfall days in March: 14.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in March
Cahokia, IL
- Average snowfall in March: 1.1"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in March
Cahokia, IL
- Average snowfall days in March: 2.4 days
The month with the highest number of snowfall days is January (6.4 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
Cahokia, IL
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in March: 6h and 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in March
Cahokia, IL
- Average sunshine days in March: 13.2 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in March
Cahokia, IL
- Average UV index in March: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in March
Cahokia, IL
- Average cloud cover in March: 47
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in March
Cahokia, 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).





