May weather forecast
Alderson, West VA

Weather in May

The last month of the spring, May, is a pleasant month in Alderson, West Virginia, with an average temperature varying between 49.1°F (9.5°C) and 70°F (21.1°C).

Temperature

In May, the average high-temperature rises from a moderate 60.6°F (15.9°C) in April to an agreeable 70°F (21.1°C). The average low-temperature, in Alderson, is 49.1°F (9.5°C).

Humidity

In Alderson, West Virginia, the average relative humidity in May is 81%.

Rainfall

The month with the most rainfall in Alderson is May, when the rain falls for 22.2 days and typically aggregates up to 3.39" (86mm) of precipitation.

Snowfall

Months with snowfall in Alderson, West Virginia, are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, Alderson aggregates 0.24" (6mm) of snow. Throughout the year, there are 44.3 snowfall days, and 20.67" (525mm) of snow is accumulated.

Daylight

In Alderson, the average length of the day in May is 14h and 13min.
On the first day of the month, sunrise is at 6:26 am and sunset at 8:12 pm. On the last day of May, in Alderson, sunrise is at 6:02 am and sunset at 8:37 pm EDT.

Sunshine

In May, the average sunshine in Alderson is 8.6h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Alderson?

In Alderson, West Virginia, in May, the average high-temperature is 70°F (21.1°C), and the average low-temperature is 49.1°F (9.5°C).

What is the average humidity in May in Alderson?

In Alderson, the average relative humidity in May is 81%.

What is the rainiest month in Alderson?

May is the month with the most rainfall in Alderson, West Virginia. Rain falls for 22.2 days and accumulates 3.39" (86mm) of precipitation.

How many days does it rain in May in Alderson?

In Alderson, West Virginia, in May, it is raining for 22.2 days, with typically 3.39" (86mm) of accumulated precipitation.

What is the last month it snows in Alderson?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Alderson aggregates 0.24" (6mm) of snow.

What is the average length of the day in May in Alderson?

In Alderson, the average day length in May is 14h and 13min.

When is the sunrise / sunset in May in Alderson?

In May, on the first day of the month, sunrise is at 6:26 am and sunset at 8:12 pm. On the last day of the month, in Alderson, West Virginia, sunrise is at 6:02 am and sunset at 8:37 pm EDT.

How many hours of sunshine does Alderson have in May?

In May, the average sunshine duration in Alderson, West Virginia, is 8.6h.

When is the highest UV index in Alderson?

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

What is the UV index intensity in May in Alderson?

In Alderson, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Alderson, West VA

Average temperature in May - Alderson, West VA
  • Average high temperature in May: 70°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (36.3°F).

  • Average low temperature in May: 49.1°F

The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

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Average pressure in May
Alderson, West VA

Average pressure in May - Alderson, West VA
  • Average pressure in May: 30.02"Hg

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

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Average wind speed in May
Alderson, West VA

Average wind speed in May - Alderson, West VA
  • Average wind speed in May: 5.7mph

The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in May
Alderson, West VA

Average humidity in May - Alderson, West VA
  • Average humidity in May: 81%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is June (78%).

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Average rainfall in May
Alderson, West VA

Average rainfall in May - Alderson, West VA
  • Average rainfall in May: 3.39"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days in May
Alderson, West VA

Average rainfall days in May - Alderson, West VA
  • Average rainfall days in May: 22.2 days

The month with the highest number of rainy days is May (22.2 days).
The month with the least rainy days is November (10.2 days).

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Average snowfall in May
Alderson, West VA

Average snowfall in May - Alderson, West VA
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Alderson, West VA

Average snowfall days in May - Alderson, West VA
  • Average snowfall days in May: 0.3 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).

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Average daylight in May /
Average sunshine in May
Alderson, West VA

Average daylight in May / Average sunshine in May - Alderson, West VA
  • Average daylight in May: 14h and 13min

The month with the longest days is June (Average daylight: 14h and 44min).
The month with the shortest days is December (Average daylight: 9h and 37min).

  • Average sunshine in May: 8h and 36min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in May
Alderson, West VA

Average sunshine days in May - Alderson, West VA
  • Average sunshine days in May: 7.7 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (7.7 days).

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Average UV index in May
Alderson, West VA

Average UV index in May - Alderson, West VA
  • 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, March, November and December (UV index 2).

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Average cloud cover in May
Alderson, West VA

Average cloud cover in May - Alderson, West VA
  • Average cloud cover in May: 49

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 40).

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Average visibility in May
Alderson, West VA

Average visibility in May - Alderson, West VA
  • Average visibility in May: 4mi

The months with the highest visibility are March, April, June, July, November and December (5mi).
The months with the lowest visibility are January, February, May, August, September and October (4mi).

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