May weather forecastFoster, WV

May

Weather in May

The last month of the spring, May, is a warm month in Foster, West Virginia, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 54.1°F (12.3°C).

Temperature

Foster's transition into May is marked by a rise in the average high-temperature, advancing from a comfortable 64.9°F (18.3°C) in April to a warm 74.8°F (23.8°C). May brings with it a nighttime average temperature of 54.1°F (12.3°C).

Humidity

In May, the average relative humidity is 78%.

Rainfall

May is the month with the most rainfall in Foster. Rain falls for 20.6 days and accumulates 3.74" (95mm) of precipitation.

Snowfall

In Foster, snow does not fall in May through September.

Daylight

In May, the average length of the day in Foster, West Virginia, is 14h and 15min.
On the first day of the month, sunrise is at 6:29 am and sunset at 8:18 pm. On the last day of May, sunrise is at 6:05 am and sunset at 8:43 pm EDT.

Sunshine

In May, the average sunshine is 9h.

UV index

In May, the average daily maximum UV index in Foster is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Guard yourself - Avoiding sunburn is suggested. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in May, in Foster, records 74.8°F (23.8°C), while the low-temperature is 54.1°F (12.3°C).

In Foster, the average relative humidity in May is 78%.

The month with the most rainfall in Foster is May, when the rain falls for 20.6 days and typically aggregates up to 3.74" (95mm) of precipitation.

In Foster, in May, during 20.6 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

May through September are months without snowfall in Foster, West Virginia.

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

In Foster, West Virginia, the average day length in May is 14h and 15min.

In May, on the first day of the month, sunrise is at 6:29 am and sunset at 8:18 pm. On the last day of the month, in Foster, sunrise is at 6:05 am and sunset at 8:43 pm EDT.

In May, the average sunshine duration is 9h.

In Foster, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

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

Apr

May

Jun

Average high temperature

64.9°F

74.8°F

81.9°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.1mph

6.2mph

5.4mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

10.4

9.3

10.3

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Foster, WV

Average high temperature in May: 74.8°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39°F).

Average low temperature in May: 54.1°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

Average pressure in May
Foster, 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
Foster, WV

Average wind speed in May: 5.6mph

The windiest months (with the highest average wind speed) are January and February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in May
Foster, WV

Average humidity in May: 78%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are June, July, August and November (76%).

Average rainfall in May
Foster, WV

Average rainfall in May: 3.74"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in May
Foster, WV

Average rainfall days in May: 20.6 days

The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is November (10.9 days).

Average snowfall in May
Foster, WV

Average snowfall in May: 0"

The months with the highest snowfall are January and February (5.12").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Foster, WV

Average snowfall days in May: 0.1 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).

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

Average daylight in May: 14h and 18min

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: 9h and 0min

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 42min).

Average sunshine days in May
Foster, WV

Average sunshine days in May: 9.3 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is February (8.7 days).

Average UV index in May
Foster, WV

Average UV index in May: 5

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

Average cloud cover in May
Foster, WV

Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in May
Foster, WV

Average visibility in May: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).