May weather forecast
Grandfather, NC

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Weather in May

May, the last month of the spring in Grandfather, is an agreeable month, with an average temperature varying between 69.6°F (20.9°C) and 50.7°F (10.4°C).

Temperature

With the onset of May, Grandfather experiences a subtle temperature shift, with the average high-temperature moving from an enjoyable 61.3°F (16.3°C) in April to a pleasant 69.6°F (20.9°C). In May, the average low-temperature is a cool 50.7°F (10.4°C).

Humidity

February, March, May, September and December, with an average relative humidity of 80%, are the most humid months in Grandfather, North Carolina.

Rainfall

In Grandfather, during May, the rain falls for 19 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 178.4 rainfall days, and 25.39" (645mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.7 snowfall days, in May, Grandfather aggregates 0.47" (12mm) of snow. Throughout the year, there are 46.4 snowfall days, and 22.01" (559mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 6min.
On the first day of May, sunrise is at 6:33 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:38 pm EDT.

Sunshine

In May, the average sunshine is 9.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

During May, Grandfather experiences an average high-temperature of 69.6°F (20.9°C) and a low-temperature of 50.7°F (10.4°C).

What are the most humid months?

February, March, May, September and December, with an average relative humidity of 80%, are most humid months.

What is the average humidity in May in Grandfather?

The average relative humidity in May is 80%.

How much does it rain in May?

In May, the rain falls for 19 days. Throughout May, 2.72" (69mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.7 snowfall days, in May, Grandfather aggregates 0.47" (12mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 6min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:33 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:38 pm EDT.

How long on average sun shines in May?

The average sunshine duration in May is 9.4h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the UV index reading in May in Grandfather?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Grandfather, NC

Average temperature in May - Grandfather, NC
  • Average high temperature in May: 69.6°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in May: 50.7°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in May
Grandfather, NC

Average pressure in May - Grandfather, 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
Grandfather, NC

Average wind speed in May - Grandfather, NC
  • Average wind speed in May: 5.4mph

The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in May
Grandfather, NC

Average humidity in May - Grandfather, NC
  • Average humidity in May: 80%

The months with the highest relative humidity are February, March, May, September and December (80%).
The months with the lowest relative humidity are June and November (77%).

Average rainfall in May
Grandfather, NC

Average rainfall in May - Grandfather, NC
  • Average rainfall in May: 2.72"

The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is November (1.5").

Average rainfall days in May
Grandfather, NC

Average rainfall days in May - Grandfather, NC
  • Average rainfall days in May: 19 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (10.6 days).

Average snowfall in May
Grandfather, NC

Average snowfall in May - Grandfather, NC
  • Average snowfall in May: 0.47"

The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Grandfather, NC

Average snowfall days in May - Grandfather, NC
  • Average snowfall days in May: 0.7 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Grandfather, NC

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

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 48min).

  • Average sunshine in May: 9h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in May
Grandfather, NC

Average sunshine days in May - Grandfather, NC
  • Average sunshine days in May: 9.3 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (9 days).

Average UV index in May
Grandfather, NC

Average UV index in May - Grandfather, NC
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Grandfather, NC

Average cloud cover in May - Grandfather, NC
  • Average cloud cover in May: 42

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 35).

Average visibility in May
Grandfather, NC

Average visibility in May - Grandfather, NC
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).

Grandfather, North Carolina, USA

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