May weather forecast
Clay Junction, WV

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Weather in May

The last month of the spring, May, is an agreeable month in Clay Junction, West Virginia, with an average temperature varying between 71.2°F (21.8°C) and 51.4°F (10.8°C).

Temperature

The start of May brings a shift in the average high-temperature, increasing from April's enjoyable 61.3°F (16.3°C) to an agreeable 71.2°F (21.8°C). In May, in Clay Junction, the average low-temperature is a fresh 51.4°F (10.8°C).

Humidity

In May, the average relative humidity is 80%.

Rainfall

May is the month with the most rainfall. Rain falls for 23.3 days and accumulates 4.21" (107mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Clay Junction aggregates 0.39" (10mm) of snow. In Clay Junction, during the entire year, snow falls for 60.4 days and aggregates up to 38.62" (981mm) of snow.

Daylight

The average length of the day in May is 14h and 17min.
On the first day of the month, sunrise is at 6:26 am and sunset at 8:16 pm. On the last day of May, sunrise is at 6:02 am and sunset at 8:42 pm EDT.

Sunshine

In May, the average sunshine is 8.9h.

UV index

The average daily maximum UV index in May in Clay Junction is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In May, the average high-temperature and low-temperature are 71.2°F (21.8°C) and 51.4°F (10.8°C) respectively.

What is the average humidity in May in Clay Junction?

In Clay Junction, West Virginia, the average relative humidity in May is 80%.

What is the wettest month?

The month with the most rainfall in Clay Junction is May, when the rain falls for 23.3 days and typically aggregates up to 4.21" (107mm) of precipitation.

How many days does it rain in May?

In Clay Junction, in May, during 23.3 rainfall days, 4.21" (107mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Clay Junction aggregates 0.39" (10mm) of snow.

How many hours of daylight does Clay Junction have in May?

In Clay Junction, the average day length in May is 14h and 17min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:26 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:42 pm EDT.

How many hours of sunshine does Clay Junction have in May?

In Clay Junction, the average sunshine duration in May is 8.9h.

What is the UV index reading in May?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
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
Clay Junction, WV

Average temperature in May - Clay Junction, WV
  • Average high temperature in May: 71.2°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in May
Clay Junction, WV

Average pressure in May - Clay Junction, WV
  • 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).

Average wind speed in May
Clay Junction, WV

Average wind speed in May - Clay Junction, WV
  • Average wind speed in May: 5.8mph

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 (4.2mph).

Average humidity in May
Clay Junction, WV

Average humidity in May - Clay Junction, WV
  • Average humidity in May: 80%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are June, July, August and November (78%).

Average rainfall in May
Clay Junction, WV

Average rainfall in May - Clay Junction, WV
  • Average rainfall in May: 4.21"

The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in May
Clay Junction, WV

Average rainfall days in May - Clay Junction, WV
  • Average rainfall days in May: 23.3 days

The month with the highest number of rainy days is May (23.3 days).
The month with the least rainy days is November (12.2 days).

Average snowfall in May
Clay Junction, WV

Average snowfall in May - Clay Junction, WV
  • Average snowfall in May: 0.39"

The month with the highest snowfall is January (8.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Clay Junction, WV

Average snowfall days in May - Clay Junction, WV
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Clay Junction, WV

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in May
Clay Junction, WV

Average sunshine days in May - Clay Junction, WV
  • Average sunshine days in May: 6.1 days

The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is May (6.1 days).

Average UV index in May
Clay Junction, WV

Average UV index in May - Clay Junction, WV
  • Average UV index in May: 5

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Clay Junction, WV

Average cloud cover in May - Clay Junction, WV
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in May
Clay Junction, WV

Average visibility in May - Clay Junction, WV
  • Average visibility in May: 5mi

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

Clay Junction, West Virginia, USA

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