May weather forecastSouth Sumter, SC
May
Weather in May
The last month of the spring, May, is another warm month in South Sumter, South Carolina, with an average temperature fluctuating between 80.2°F (26.8°C) and 62.8°F (17.1°C).Temperature
The shift into May is characterized by a subtle rise in the average high-temperature, transitioning from April's 73.4°F (23°C) to a still moderately hot 80.2°F (26.8°C). During the nights in May, an average low-temperature of 62.8°F (17.1°C) is observed.Humidity
The most humid month is May, with an average relative humidity of 76%.Rainfall
In May, the rain falls for 15.6 days. Throughout May, 3.35" (85mm) of precipitation is accumulated. Throughout the year, there are 161.8 rainfall days, and 33.35" (847mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In May, the average length of the day in South Sumter is 13h and 56min.On the first day of the month, sunrise is at 6:31 am and sunset at 8:05 pm. On the last day of May, sunrise is at 6:11 am and sunset at 8:26 pm EDT.
Sunshine
In May, the average sunshine in South Sumter is 9.7h.UV index
The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 6 in May transforms into the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
South Sumter, SC
- Average high temperature in May: 80.2°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 May: 62.8°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 May
South Sumter, SC
- Average pressure in May: 30.02"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 May
South Sumter, SC
- Average wind speed in May: 7.1mph
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 May
South Sumter, SC
- Average humidity in May: 76%
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 May
South Sumter, SC
- Average rainfall in May: 3.35"
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 May
South Sumter, SC
- Average rainfall days in May: 15.6 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 May
South Sumter, SC
- Average snowfall in May: 0"
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 May
South Sumter, SC
- Average snowfall days in May: 0 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 May /
Average sunshine in May
South Sumter, SC
- Average daylight in May: 13h and 54min
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 May: 9h and 42min
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 May
South Sumter, SC
- Average sunshine days in May: 13.4 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 May
South Sumter, SC
- Average UV index in May: 6
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 May
South Sumter, SC
- Average cloud cover in May: 36
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 May
South Sumter, SC
- Average visibility in May: 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).
