May weather forecastHarrisburg, NC
May
Weather in May
May, the last month of the spring in Harrisburg, is a moderately hot month, with temperature in the range of an average low of 59.4°F (15.2°C) and an average high of 78.8°F (26°C).Temperature
May's onset brings a subtle temperature rise, moving from a pleasant 70.5°F (21.4°C) in April to a moderately hot 78.8°F (26°C). Harrisburg, in May, witnesses an average low-temperature of 59.4°F (15.2°C).Humidity
The average relative humidity in May is 75%.Rainfall
In Harrisburg, during May, the rain falls for 17 days and regularly aggregates up to 2.99" (76mm) of precipitation. Throughout the year, there are 162.7 rainfall days, and 32.13" (816mm) of precipitation is accumulated.Snowfall
In Harrisburg, snow does not fall in April through November.Daylight
In Harrisburg, the average length of the day in May is 14h and 2min.On the first day of May, sunrise is at 6:30 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:31 pm EDT.
Sunshine
The average sunshine in May is 9.6h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation 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. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Harrisburg, NC
- Average high temperature in May: 78.8°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (48.2°F).
- Average low temperature in May: 59.4°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in May
Harrisburg, NC
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Harrisburg, NC
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in May
Harrisburg, NC
- Average humidity in May: 75%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are June and July (70%).
Average rainfall in May
Harrisburg, NC
- Average rainfall in May: 2.99"
The wettest months (with the highest rainfall) are April and August (3.31").
The driest month (with the least rainfall) is October (2.05").
Average rainfall days in May
Harrisburg, NC
- Average rainfall days in May: 17 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in May
Harrisburg, NC
- Average snowfall in May: 0"
The month with the highest snowfall is December (1.85").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Harrisburg, NC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.3 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
Harrisburg, 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 month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in May
Harrisburg, NC
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in May
Harrisburg, NC
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Harrisburg, NC
- Average cloud cover in May: 38
The months with the most cloud cover are February and December (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Harrisburg, 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).





