May weather forecast and climate
Mountain Island, NC

Weather in May

The last month of the spring, May, is a warm month in Mountain Island, North Carolina, with average temperature varying between 59°F (15°C) and 79.2°F (26.2°C).

Temperature

In May, the average high-temperature marginally rises, from an agreeable 70.3°F (21.3°C) in April, to a moderately hot 79.2°F (26.2°C). In May, the average low-temperature is 59°F (15°C).

Humidity

In May, the average relative humidity in Mountain Island, North Carolina, is 75%.

Rainfall

In May, the rain falls for 16.8 days. Throughout May, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 158.9 rainfall days, and 31.26" (794mm) of precipitation is accumulated.

Snowfall

In Mountain Island, North Carolina, snow does not fall in April through October.

Daylight

The average length of the day in May is 14h.

Sunshine

The average sunshine is 9.7h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Mountain Island. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV rays for average individuals.
Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in May in Mountain Island?

In Mountain Island, North Carolina, in May, the average high-temperature is 79.2°F (26.2°C), and the average low-temperature is 59°F (15°C).

What is the average humidity in May in Mountain Island?

In May, the average relative humidity is 75%.

How much does it rain in Mountain Island in May?

In May, in Mountain Island, the rain falls for 16.8 days. Throughout May, 2.8" (71mm) of precipitation is accumulated.

When it does not snow in Mountain Island?

April through October are months without snowfall in Mountain Island.

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

In Mountain Island, North Carolina, the average length of the day in May is 14h.

How long on average sun shines in May in Mountain Island?

In Mountain Island, North Carolina, the average sunshine in May is 9.7h.

What are the months with the highest UV index in Mountain Island?

Months with the highest UV index in Mountain Island, North Carolina, are May through August, with an average maximum UV index of 6.

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

The average daily maximum UV index in May in Mountain Island, North Carolina, is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in May
Mountain Island, NC

Average temperature in May - Mountain Island, NC
  • Average high temperature in May: 79.2°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 (47.8°F).

  • Average low temperature in May: 59°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

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Average pressure in May
Mountain Island, NC

Average pressure in May - Mountain Island, NC
  • Average pressure in May: 30.03"

The month with the highest atmospheric pressure is November (30.16").
The month with the lowest atmospheric pressure is June (29.98").

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Average wind speed in May
Mountain Island, NC

Average wind speed in May - Mountain Island, NC
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in May
Mountain Island, NC

Average humidity in May - Mountain Island, NC
  • Average humidity in May: 75%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in May
Mountain Island, NC

Average rainfall in May - Mountain Island, NC
  • Average rainfall in May: 2.8"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is October (1.93").

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Average rainfall days in May
Mountain Island, NC

Average rainfall days in May - Mountain Island, NC
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in May
Mountain Island, NC

Average snowfall in May - Mountain Island, NC
  • Average snowfall in May: 0"

The month with the highest snowfall is December (2.01").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Mountain Island, NC

Average snowfall days in May - Mountain Island, NC
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (1.8 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Mountain Island, NC

Average daylight in May / Average sunshine in May - Mountain Island, NC
  • Average daylight in May: 14h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in May: 9.7h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days in May
Mountain Island, NC

Average sunshine days in May - Mountain Island, NC
  • Average sunshine days in May: 12.2 days

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in May
Mountain Island, NC

Average UV index in May - Mountain Island, NC
  • Average UV index in May: 6

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in May
Mountain Island, NC

Average cloud cover in May - Mountain Island, NC
  • Average cloud cover in May: 38

The month with the most cloud cover is December (Cloud cover 43).
Months with the least cloud cover are June and July (Cloud cover 30).

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Average visibility in May
Mountain Island, NC

Average visibility in May - Mountain Island, NC
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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