May weather forecastRains, SC
May
Weather in May
The last month of the spring, May, is a moderately hot month in Rains, South Carolina, with an average temperature varying between 79.7°F (26.5°C) and 62.6°F (17°C).Temperature
May's onset brings a subtle temperature rise, moving from a pleasant 72.1°F (22.3°C) in April to a moderately hot 79.7°F (26.5°C). May nights in Rains observe an average temperature dip to an enjoyable 62.6°F (17°C).Humidity
May, August and September, with an average relative humidity of 78%, are the most humid months.Rainfall
In Rains, in May, during 17.9 rainfall days, 3.9" (99mm) of precipitation is typically accumulated. Throughout the year, there are 171 rainfall days, and 34.29" (871mm) of precipitation is accumulated.Snowfall
In Rains, snow does not fall in April through November.Daylight
In May, the average length of the day is 13h and 57min.On the first day of May, sunrise is at 6:27 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:23 pm EDT.
Sunshine
In Rains, the average sunshine in May is 9.8h.UV index
In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 6 in May translates into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Rains, SC
- Average high temperature in May: 79.7°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (52.3°F).
- Average low temperature in May: 62.6°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).
Average pressure in May
Rains, SC
- Average pressure in May: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Rains, SC
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Rains, SC
- Average humidity in May: 78%
The months with the highest relative humidity are May, August and September (78%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in May
Rains, SC
- Average rainfall in May: 3.9"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in May
Rains, SC
- Average rainfall days in May: 17.9 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is October (8.7 days).
Average snowfall in May
Rains, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Rains, SC
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Rains, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in May
Rains, SC
- Average sunshine days in May: 11 days
The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is July (8 days).
Average UV index in May
Rains, SC
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Rains, SC
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in May
Rains, 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).





