March weather forecastSumter, SC
March
Weather in March
While February was a blend of snowflakes and rainfall, March in Sumter conveys a clear shift towards a warmer season. Plentiful sunshine and higher temperatures become predominant, marking an unequivocal arrival of spring. The highlights of this change are an average high temperature of 63.9°F (17.7°C) and a low of 46.6°F (8.1°C) accompanied by a scant snowfall of 0.04" (1mm). As the city transitions from March into April, residents look forward to basking in more daylight hours, brisk sunshine, and upsurging temperature highs.Temperature
The onset of March introduces a subtle rise in the average high-temperature, nudging from a moderate 57.7°F (14.3°C) in February to a comfortable 63.9°F (17.7°C). In March, Sumter's temperature tends to fall to an average low of 46.6°F (8.1°C) during the night.Humidity
The average relative humidity in March is 72%.Rainfall
In Sumter, in March, during 12.9 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Sumter, during the entire year, the rain falls for 161.8 days and collects up to 33.35" (847mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. March is the last month it regularly snows. During 0.1 snowfall days, in March, Sumter aggregates 0.04" (1mm) of snow. Throughout the year, there are 1.3 snowfall days, and 1.06" (27mm) of snow is accumulated.Daylight
In March, the average length of the day is 12h and 0min.On the first day of the month, sunrise is at 6:48 am and sunset at 6:18 pm EST. On the last day of March, sunrise is at 7:08 am and sunset at 7:41 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.
Sunshine
In Sumter, the average sunshine in March is 7.3h.UV index
The average daily maximum UV index in March in Sumter is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 4 during March leads to these instructions:
Guard yourself - Avoiding sunburn is suggested. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Sumter, SC
- Average high temperature in March: 63.9°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (52.9°F).
- Average low temperature in March: 46.6°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in March
Sumter, SC
- Average pressure in March: 30.09"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in March
Sumter, SC
- Average wind speed in March: 8.3mph
The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in March
Sumter, SC
- Average humidity in March: 72%
The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are January and November (70%).
Average rainfall in March
Sumter, SC
- Average rainfall in March: 2.13"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in March
Sumter, SC
- Average rainfall days in March: 12.9 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in March
Sumter, SC
- Average snowfall in March: 0.04"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in March
Sumter, SC
- Average snowfall days in March: 0.1 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in March /
Average sunshine in March
Sumter, SC
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in March: 7h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in March
Sumter, SC
- Average sunshine days in March: 17.3 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in March
Sumter, SC
- Average UV index in March: 4
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in March
Sumter, SC
- Average cloud cover in March: 40
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in March
Sumter, SC
- 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).





