May weather forecastFort Mill, SC
May
Weather in May
May in Fort Mill coincides with the onset of late spring, leading to significant changes in the weather profile. It hosts the highest pressure readings for the year at 30.03" (763mm). Elevated temperature highs of around 79.7°F (26.5°C) make their grand entrance, hinting at the summer heat yet to come. The sunshine duration extends to 9.5 hours per day, allowing for long, sunlit days. As the mercury soars, the absence of snowfall continues to be replaced by rain, setting the stage for a verdant landscape.Temperature
A soft shift in the average high-temperature is noticeable in May in Fort Mill, transitioning from a pleasant 71.6°F (22°C) in April to a warm 79.7°F (26.5°C). Fort Mill observes an average low-temperature of 60.8°F (16°C) during May.Humidity
In Fort Mill, the average relative humidity in May is 74%.Rainfall
In May, the rain falls for 14.7 days. Throughout May, 2.56" (65mm) of precipitation is accumulated. In Fort Mill, during the entire year, the rain falls for 146.1 days and collects up to 28.94" (735mm) of precipitation.Snowfall
April through November are months without snowfall in Fort Mill.Daylight
In Fort Mill, the average length of the day in May is 14h and 1min.On the first day of the month, sunrise is at 6:31 am and sunset at 8:09 pm. On the last day of May, sunrise is at 6:10 am and sunset at 8:32 pm EDT.
Sunshine
In Fort Mill, South Carolina, the average sunshine in May is 9.5h.UV index
The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 6 in May translates into these instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Fort Mill, SC
- Average high temperature in May: 79.7°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (49.6°F).
- Average low temperature in May: 60.8°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in May
Fort Mill, SC
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Fort Mill, SC
- Average wind speed in May: 6.4mph
The windiest months (with the highest average wind speed) are February and April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Fort Mill, SC
- Average humidity in May: 74%
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall in May
Fort Mill, SC
- Average rainfall in May: 2.56"
The wettest month (with the highest rainfall) is August (3.23").
The driest months (with the least rainfall) are September and October (1.81").
Average rainfall days in May
Fort Mill, SC
- Average rainfall days in May: 14.7 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in May
Fort Mill, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Fort Mill, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.4 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
Fort Mill, SC
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 9h and 30min
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
Fort Mill, SC
- Average sunshine days in May: 14.2 days
The month with the most sunshine days is October (22 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in May
Fort Mill, SC
- Average UV index in May: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in May
Fort Mill, SC
- Average cloud cover in May: 38
The months with the most cloud cover are February and December (Cloud cover 44).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Fort Mill, 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).
