May weather forecast
Richwood, WV

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Weather in May

The last month of the spring, May, is a pleasant month in Richwood, West Virginia, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 69.3°F (20.7°C).

Temperature

Richwood sees an increase in the average high-temperature with the arrival of May, moving from April's mild 59.2°F (15.1°C) to a pleasant 69.3°F (20.7°C). An average low-temperature of 48.9°F (9.4°C) is recorded during the nights in May.

Humidity

The average relative humidity in May is 82%.

Rainfall

May is the month with the most rainfall. Rain falls for 23.4 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, Richwood aggregates 0.51" (13mm) of snow. In Richwood, during the entire year, snow falls for 59.4 days and aggregates up to 37.4" (950mm) of snow.

Daylight

The average length of the day in May in Richwood is 14h and 16min.
On the first day of the month, sunrise is at 6:24 am and sunset at 8:13 pm. On the last day of May, sunrise is at 6:00 am and sunset at 8:39 pm EDT.

Sunshine

In May, the average sunshine is 8.7h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 5 in May translates into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Richwood?

In May, the average high-temperature and low-temperature are 69.3°F (20.7°C) and 48.9°F (9.4°C) respectively.

What is the average humidity in May?

In Richwood, the average relative humidity in May is 82%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 23.4 days and accumulates 4.49" (114mm) of precipitation.

How much does it rain in Richwood in May?

In Richwood, in May, it is raining for 23.4 days, with typically 4.49" (114mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Richwood aggregates 0.51" (13mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 16min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:24 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:39 pm EDT.

How many hours of sunshine does Richwood have in May?

The average sunshine duration in May is 8.7h.

When is the highest UV index in Richwood?

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

What is the UV index intensity in May?

In Richwood, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's 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
Richwood, WV

Average temperature in May - Richwood, WV
  • Average high temperature in May: 69.3°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in May: 48.9°F

The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in May
Richwood, WV

Average pressure in May - Richwood, 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
Richwood, WV

Average wind speed in May - Richwood, WV
  • Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in May
Richwood, WV

Average humidity in May - Richwood, WV
  • Average humidity in May: 82%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are June, July and November (79%).

Average rainfall in May
Richwood, WV

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

Average rainfall days in May
Richwood, WV

Average rainfall days in May - Richwood, WV
  • Average rainfall days in May: 23.4 days

The month with the highest number of rainy days is May (23.4 days).
The month with the least rainy days is January (11.4 days).

Average snowfall in May
Richwood, WV

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

The month with the highest snowfall is February (8.62").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Richwood, WV

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

The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Richwood, 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 36min).

  • Average sunshine in May: 8h and 4min

The months with the most sunshine are June and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in May
Richwood, WV

Average sunshine days in May - Richwood, WV
  • Average sunshine days in May: 5.9 days

The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is May (5.9 days).

Average UV index in May
Richwood, WV

Average UV index in May - Richwood, WV
  • 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
Richwood, WV

Average cloud cover in May - Richwood, WV
  • Average cloud cover in May: 48

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in May
Richwood, WV

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

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

Richwood, West Virginia, USA

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