May weather forecast
Black Mountain, NC

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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.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

The average high-temperature and low-temperature during May are 73.4°F (23°C) and 52.3°F (11.3°C) respectively.

What are the most humid months?

The months with the highest humidity are May and September, with an average relative humidity of 78%.

What is the average humidity in May?

In Black Mountain, North Carolina, the average relative humidity in May is 78%.

How many days does it rain in May?

In Black Mountain, in May, during 16.9 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Black Mountain have in May?

The average day length in May is 14h and 4min.

When are sunrise and sunset in May?

On the first day of May in Black Mountain, sunrise is at 6:36 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:39 pm EDT.

How many hours of sunshine does Black Mountain have in May?

The average sunshine duration in May is 9.8h.

How high is the UV index in May in Black Mountain?

In Black Mountain, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Black Mountain, NC

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in May - Black Mountain, NC
  • Average daylight in May: 14h and 1min

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 5min

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 - 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 - 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 - 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 - 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).

Black Mountain, North Carolina, USA

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