May weather forecastSanford, NC
May
Weather in May
May marks the definite start of the warmer months in Sanford, with temperatures increasing to attain a high of 79.3°F (26.3°C). The increase in temperature, however, coincides with the highest average rainfall of 3.23" (82mm) for the year. As the daylight hours continue to lengthen, humidity begins to increase, indicating the onset of the summer. Despite the rainfall, the overall weather remains comfortably warm.Temperature
Sanford's May weather indicates a minor ascent in high-temperatures, adjusting from a pleasant 71.1°F (21.7°C) in April to a moderately hot 79.3°F (26.3°C). May's average low-temperature reading settles at a refreshing 59.9°F (15.5°C).Humidity
In May, the average relative humidity is 76%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.2 days and typically aggregates up to 3.23" (82mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Sanford, the average length of the day in May is 14h and 3min.On the first day of May in Sanford, sunrise is at 6:24 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:26 pm EDT.
Sunshine
The average sunshine in May is 9.6h.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 unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 6 in May transforms into the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. 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
Sanford, NC
- Average high temperature in May: 79.3°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in May: 59.9°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in May
Sanford, NC
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Sanford, NC
- Average wind speed in May: 6.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Sanford, NC
- Average humidity in May: 76%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (72%).
Average rainfall in May
Sanford, NC
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is October (1.81").
Average rainfall days in May
Sanford, NC
- Average rainfall days in May: 16.2 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in May
Sanford, NC
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Sanford, NC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.7 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
Sanford, NC
- 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 36min
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 30min).
Average sunshine days in May
Sanford, NC
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in May
Sanford, NC
- 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 and December (UV index 2).
Average cloud cover in May
Sanford, NC
- Average cloud cover in May: 38
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in May
Sanford, NC
- 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).





