March weather forecastSullivan, IL
March
Weather in March
March, the first month of the spring in Sullivan, is a fresh month, with an average temperature fluctuating between 36.1°F (2.3°C) and 50.5°F (10.3°C).Temperature
The start of March is characterized by an increase in the average high-temperature, transitioning from a cold 38.7°F (3.7°C) in February to a fresh 50.5°F (10.3°C). During March, Sullivan sees a mean low-temperature of 36.1°F (2.3°C).Humidity
In Sullivan, the average relative humidity in March is 75%.Rainfall
In Sullivan, during March, the rain falls for 11.5 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, there are 130.9 rainfall days, and 15.43" (392mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In March, in Sullivan, it is snowing for 2.5 days. Throughout March, 0.83" (21mm) of snow is accumulated. Throughout the year, there are 21.5 snowfall days, and 4.53" (115mm) of snow is accumulated.Daylight
The average length of the day in March in Sullivan, Illinois, is 11h and 59min.On the first day of the month, sunrise is at 6:26 am and sunset at 5:47 pm CST. On the last day of March, sunrise is at 6:38 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
The average sunshine in March is 6.3h.UV index
In Sullivan, the average daily maximum UV index in March is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 in March translates into these instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Sullivan, IL
- Average high temperature in March: 50.5°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in March: 36.1°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 (21.6°F).
Average pressure in March
Sullivan, IL
- Average pressure in March: 30.08"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in March
Sullivan, IL
- Average wind speed in March: 10.3mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in March
Sullivan, IL
- Average humidity in March: 75%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in March
Sullivan, IL
- Average rainfall in March: 1.22"
The wettest month (with the highest rainfall) is June (1.85").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in March
Sullivan, IL
- Average rainfall days in March: 11.5 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in March
Sullivan, IL
- Average snowfall in March: 0.83"
The month with the highest snowfall is January (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in March
Sullivan, IL
- Average snowfall days in March: 2.5 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, September and October (0 days).
Average daylight in March /
Average sunshine in March
Sullivan, IL
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in March: 6h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in March
Sullivan, IL
- Average sunshine days in March: 16.3 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in March
Sullivan, 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
Sullivan, 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 June (Cloud cover 30).
Average visibility in March
Sullivan, 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).
