May weather forecastDillon, SC
May
Weather in May
May, the last month of the spring in Dillon, is a warm month, with an average temperature fluctuating between 62.4°F (16.9°C) and 79.7°F (26.5°C).Temperature
In Dillon, stepping into May brings a gentle temperature nudge, moving slightly up from April's agreeable 72°F (22.2°C) to a warm 79.7°F (26.5°C). May witnesses an average low-temperature hovering around a refreshing 62.4°F (16.9°C).Humidity
May and September, with an average relative humidity of 78%, are the most humid months.Rainfall
In Dillon, in May, during 16.3 rainfall days, 3.54" (90mm) of precipitation is typically accumulated. In Dillon, during the entire year, the rain falls for 159.1 days and collects up to 32.17" (817mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In May, the average length of the day is 13h and 58min.On the first day of the month, sunrise is at 6:26 am and sunset at 8:02 pm. On the last day of May, sunrise is at 6:06 am and sunset at 8:24 pm EDT.
Sunshine
In May, the average sunshine is 9.7h.UV index
In Dillon, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 6 in May translates into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. 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. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Dillon, 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 (52.2°F).
- Average low temperature in May: 62.4°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in May
Dillon, 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
Dillon, SC
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in May
Dillon, SC
- Average humidity in May: 78%
The months with the highest relative humidity are May and September (78%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in May
Dillon, SC
- Average rainfall in May: 3.54"
The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in May
Dillon, SC
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is October (7.8 days).
Average snowfall in May
Dillon, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Dillon, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.8 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
Dillon, SC
- Average daylight in May: 14h 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 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 30min).
Average sunshine days in May
Dillon, SC
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in May
Dillon, 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
Dillon, SC
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in May
Dillon, 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).





