May weather forecast
Gaston, WV

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Weather in May

The last month of the spring, May, is a pleasant month in Gaston, West Virginia, with an average temperature varying between 73.2°F (22.9°C) and 52.3°F (11.3°C).

Temperature

The arrival of May brings an increase in high-temperatures, moving from a refreshing 62.4°F (16.9°C) in April to a pleasant 73.2°F (22.9°C). Gaston reports an average nighttime low-temperature of 52.3°F (11.3°C) in May.

Humidity

In May, the average relative humidity is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 20.8 days and accumulates 4.49" (114mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Gaston aggregates 0.59" (15mm) of snow. In Gaston, during the entire year, snow falls for 58.9 days and aggregates up to 32.17" (817mm) of snow.

Daylight

The average length of the day in May is 14h and 22min.
On the first day of May, sunrise is at 6:20 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:41 pm EDT.

Sunshine

In Gaston, the average sunshine in May is 8.7h.

UV index

The months with the highest UV index are May, July and August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In May, the UV index of 6 transforms into the following advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Gaston?

In May, the average high-temperature and low-temperature are 73.2°F (22.9°C) and 52.3°F (11.3°C) respectively.

What is the average humidity in May in Gaston?

The average relative humidity in May is 79%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 20.8 days and accumulates 4.49" (114mm) of precipitation.

How much does it rain in May?

In Gaston, during May, the rain falls for 20.8 days and regularly aggregates up to 4.49" (114mm) of precipitation.

What is the last month it snows in Gaston?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Gaston aggregates 0.59" (15mm) of snow.

How many hours of daylight does Gaston have in May?

In May, the average day length is 14h and 22min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:20 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:41 pm EDT.

How long on average sun shines in May?

In Gaston, the average sunshine duration in May is 8.7h.

What are the months with the highest UV index?

The months with the highest UV index are May, July and August, with an average maximum UV index of 6.

How high is the UV index in May?

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe 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
Gaston, WV

Average temperature in May - Gaston, WV
  • Average high temperature in May: 73.2°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in May
Gaston, WV

Average pressure in May - Gaston, WV
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in May
Gaston, WV

Average wind speed in May - Gaston, WV
  • Average wind speed in May: 5.5mph

The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in May
Gaston, WV

Average humidity in May - Gaston, WV
  • Average humidity in May: 79%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is August (76%).

Average rainfall in May
Gaston, WV

Average rainfall in May - Gaston, WV
  • Average rainfall in May: 4.49"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in May
Gaston, WV

Average rainfall days in May - Gaston, WV
  • Average rainfall days in May: 20.8 days

The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (11.4 days).

Average snowfall in May
Gaston, WV

Average snowfall in May - Gaston, WV
  • Average snowfall in May: 0.59"

The month with the highest snowfall is January (8.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Gaston, WV

Average snowfall days in May - Gaston, WV
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Gaston, WV

Average daylight in May / Average sunshine in May - Gaston, WV
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in May
Gaston, WV

Average sunshine days in May - Gaston, WV
  • Average sunshine days in May: 9 days

The month with the most sunshine days is October (14.1 days).
The months with the least sunshine days are January and February (7.6 days).

Average UV index in May
Gaston, WV

Average UV index in May - Gaston, WV
  • Average UV index in May: 6

The months with the highest UV index are May, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Gaston, WV

Average cloud cover in May - Gaston, WV
  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in May
Gaston, WV

Average visibility in May - Gaston, WV
  • Average visibility in May: 5mi

The month with the highest visibility is November (6mi).
The months with the lowest visibility are January and February (4mi).

Gaston, West Virginia, USA

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