May weather forecastGrandy, NC
May
Weather in May
May, the last month of the spring in Grandy, is an agreeable month, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 69.6°F (20.9°C).Temperature
May brings a slight increase in the average high-temperature, progressing from an enjoyable 61.5°F (16.4°C) in April to a pleasant 69.6°F (20.9°C). In Grandy, a slight decrease from the daytime peak is noted during the month of May, with an average low-temperature of 63.5°F (17.5°C).Humidity
May is the most humid month, with an average relative humidity of 80%.Rainfall
In Grandy, in May, it is raining for 18 days, with typically 3.03" (77mm) of accumulated precipitation. Throughout the year, there are 173.9 rainfall days, and 37.24" (946mm) of precipitation is accumulated.Snowfall
In Grandy, snow does not fall in April through November.Daylight
In May, the average length of the day is 14h and 7min.On the first day of the month, sunrise is at 6:09 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:47 am and sunset at 8:15 pm EDT.
Sunshine
The average sunshine in May is 9.9h.UV index
In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 6 in May translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grandy, NC
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in May: 63.5°F
The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in May
Grandy, NC
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Grandy, NC
- Average wind speed in May: 11.6mph
The windiest month (with the highest average wind speed) is March (14mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).
Average humidity in May
Grandy, NC
- Average humidity in May: 80%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are October and November (74%).
Average rainfall in May
Grandy, NC
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is August (4.02").
The driest month (with the least rainfall) is January (2.24").
Average rainfall days in May
Grandy, NC
- Average rainfall days in May: 18 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (11.6 days).
Average snowfall in May
Grandy, NC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Grandy, NC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (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
Grandy, NC
- Average daylight in May: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 9h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 24min).
Average sunshine days in May
Grandy, NC
- Average sunshine days in May: 10.9 days
The month with the most sunshine days is December (17.4 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in May
Grandy, NC
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in May
Grandy, NC
- Average cloud cover in May: 33
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 25).
Average visibility in May
Grandy, 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).





