May weather forecast
Monongah, WV

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Weather in May

The last month of the spring, May, is a pleasant month in Monongah, West Virginia, with an average temperature fluctuating between 51.4°F (10.8°C) and 72.1°F (22.3°C).

Temperature

The start of May brings a rise in the average high-temperature, moving from a refreshing 61.3°F (16.3°C) in April to an agreeable 72.1°F (22.3°C). Monongah observes an average nighttime low-temperature of 51.4°F (10.8°C) during the month of May.

Humidity

In Monongah, the average relative humidity in May is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 20.3 days and accumulates 4.21" (107mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Monongah aggregates 0.51" (13mm) of snow. Throughout the year, in Monongah, there are 58.4 snowfall days, and 29.09" (739mm) of snow is accumulated.

Daylight

In May, the average length of the day 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 May, the average sunshine is 8.5h.

UV index

May through July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high UV index of 6 in May translates into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Enhance your sun protection with tightly woven, yet airy clothing. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The high-temperature, in May, in Monongah, is 72.1°F (22.3°C), while the low-temperature averages to 51.4°F (10.8°C).

What is the average humidity in May?

In May, the average relative humidity in Monongah is 79%.

What is the rainiest month?

May is the month with the most rainfall. Rain falls for 20.3 days and accumulates 4.21" (107mm) of precipitation.

How many days does it rain in May?

In Monongah, in May, during 20.3 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 0.2 snowfall days, in May, Monongah aggregates 0.51" (13mm) of snow.

What is the average length of the day in May?

In May, the average day length in Monongah, West Virginia, is 14h and 22min.

When is the sunrise / sunset in May in Monongah?

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.

How long on average sun shines in May?

In May, the average sunshine duration is 8.5h.

What are the months with the highest UV index?

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

What is the UV index reading in May?

In Monongah, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Monongah, WV

Average temperature in May - Monongah, WV
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure in May
Monongah, WV

Average pressure in May - Monongah, WV
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in May
Monongah, WV

Average wind speed in May - Monongah, WV
  • Average wind speed in May: 5.6mph

The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in May
Monongah, WV

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

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).

Average rainfall in May
Monongah, WV

Average rainfall in May - Monongah, 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 (2.13").

Average rainfall days in May
Monongah, WV

Average rainfall days in May - Monongah, WV
  • Average rainfall days in May: 20.3 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (10.8 days).

Average snowfall in May
Monongah, WV

Average snowfall in May - Monongah, WV
  • Average snowfall in May: 0.51"

The month with the highest snowfall is January (7.28").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Monongah, WV

Average snowfall days in May - Monongah, WV
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Monongah, 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 3min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in May
Monongah, WV

Average sunshine days in May - Monongah, WV
  • Average sunshine days in May: 8.8 days

The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is January (6.8 days).

Average UV index in May
Monongah, WV

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

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

Average cloud cover in May
Monongah, WV

Average cloud cover in May - Monongah, WV
  • Average cloud cover in May: 47

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in May
Monongah, WV

Average visibility in May - Monongah, 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).

Monongah, West Virginia, USA

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