May weather forecastDean, WV

May

Weather in May

May, the last month of the spring in Dean, is a warm month, with an average temperature varying between 73.4°F (23°C) and 52.2°F (11.2°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a refreshing 61.9°F (16.6°C) in April to a moderately hot 73.4°F (23°C). In the month of May, the average temperature dips to a cool 52.2°F (11.2°C) during the night.

Humidity

The average relative humidity in May in Dean is 79%.

Rainfall

The month with the most rainfall is May, when the rain falls for 19.6 days and typically aggregates up to 2.91" (74mm) of precipitation.

Snowfall

In Dean, snow does not fall in May through October.

Daylight

In Dean, the average length of the day in May is 14h and 23min.
On the first day of May, sunrise is at 6:21 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:43 pm EDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

In Dean, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Make use of precautions - It is urged to ward off sun damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in May, in Dean, is 73.4°F (23°C) and the average low-temperature is 52.2°F (11.2°C).

In Dean, West Virginia, the average relative humidity in May is 79%.

The month with the most rainfall is May, when the rain falls for 19.6 days and typically aggregates up to 2.91" (74mm) of precipitation.

In Dean, in May, during 19.6 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

In Dean, snow does not fall in May through October.

In May, it doesn't snow. April is the latest month when it typically snows.

In May, the average day length is 14h and 23min.

On the first day of May, sunrise is at 6:21 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:43 pm EDT.

In Dean, the average sunshine duration in May is 8.6h.

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

61.9°F

73.4°F

80.2°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.2mph

6mph

5.5mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

10.9

8.8

10.5

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Dean, WV

Average high temperature in May: 73.4°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).

Average low temperature in May: 52.2°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

Average pressure in May
Dean, 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 (29.95"Hg).

Average wind speed in May
Dean, WV

Average wind speed in May: 5.4mph

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
Dean, WV

Average humidity in May: 79%

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

Average rainfall in May
Dean, WV

Average rainfall in May: 2.91"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in May
Dean, WV

Average rainfall days in May: 19.6 days

The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (10.2 days).

Average snowfall in May
Dean, WV

Average snowfall in May: 0"

The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Dean, WV

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in May: 14h and 24min

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 36min

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).