May weather forecastBlack Mountain, NC
May
Weather in May
May, the last month of the spring in Black Mountain, is a warm month, with an average temperature fluctuating between 73.4°F (23°C) and 52.3°F (11.3°C).Temperature
With the onset of May, Black Mountain's average high-temperature experiences a slight rise, moving from April's refreshing 65.1°F (18.4°C) to a moderately hot 73.4°F (23°C). The average nighttime temperature lowers to a cool 52.3°F (11.3°C) throughout May.Humidity
The months with the highest humidity in Black Mountain are May and September, with an average relative humidity of 78%.Rainfall
In Black Mountain, in May, it is raining for 16.9 days, with typically 2.83" (72mm) of accumulated precipitation. In Black Mountain, during the entire year, the rain falls for 156.4 days and collects up to 27.8" (706mm) of precipitation.Snowfall
In Black Mountain, snow does not fall in May through October.Daylight
In Black Mountain, the average length of the day in May is 14h and 4min.On the first day of the month, sunrise is at 6:36 am and sunset at 8:16 pm. On the last day of May, sunrise is at 6:14 am and sunset at 8:39 pm EDT.
Sunshine
The average sunshine in May is 9.8h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 5 during May translates into the following guidance:
Be vigilant - Preventing sunburn is recommended. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Black Mountain, NC
- Average high temperature in May: 73.4°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in May
Black Mountain, 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 (29.99"Hg).
Average wind speed in May
Black Mountain, NC
- Average wind speed in May: 4.9mph
The windiest months (with the highest average wind speed) are January, February and April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in May
Black Mountain, NC
- 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 (74%).
Average rainfall in May
Black Mountain, NC
- Average rainfall in May: 2.83"
The wettest months (with the highest rainfall) are April and December (3.07").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in May
Black Mountain, NC
- Average rainfall days in May: 16.9 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
Black Mountain, NC
- Average snowfall in May: 0"
The month with the highest snowfall is December (4.37").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Black Mountain, NC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Black Mountain, NC
- Average daylight in May: 14h and 6min
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 48min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in May
Black Mountain, NC
- Average sunshine days in May: 12 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in May
Black Mountain, NC
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Black Mountain, NC
- Average cloud cover in May: 37
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Black Mountain, NC
- Average visibility in May: 5mi
The months with the highest visibility are June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October and December (5mi).
