May weather forecastTriadelphia, WV

May

Weather in May

The last month of the spring, May, is a pleasant month in Triadelphia, West Virginia, with temperature in the range of an average low of 51.1°F (10.6°C) and an average high of 72.3°F (22.4°C).

Temperature

With the onset of May, Triadelphia's weather sees a temperature rise, transitioning from a refreshing 60.8°F (16°C) in April to a pleasant 72.3°F (22.4°C). In Triadelphia, the May nights cool down to an average low of 51.1°F (10.6°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

The month with the most rainfall in Triadelphia is May, when the rain falls for 19.6 days and typically aggregates up to 2.68" (68mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In May, the average length of the day in Triadelphia is 14h and 25min.
On the first day of the month, sunrise is at 6:21 am and sunset at 8:17 pm. On the last day of May, sunrise is at 5:55 am and sunset at 8:45 pm EDT.

Sunshine

In Triadelphia, the average sunshine in May is 8.5h.

UV index

May through July, with an average maximum UV index of 6, are months with the highest UV index in Triadelphia, West Virginia. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in May interprets into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

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

Frequently asked questions

Triadelphia in May has an average high-temperature of 72.3°F (22.4°C) and an average low-temperature of 51.1°F (10.6°C).

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

May is the month with the most rainfall in Triadelphia. Rain falls for 19.6 days and accumulates 2.68" (68mm) of precipitation.

In Triadelphia, during May, the rain falls for 19.6 days and regularly aggregates up to 2.68" (68mm) of precipitation.

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

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

The average day length in May in Triadelphia, West Virginia, is 14h and 25min.

In May, on the first day of the month, sunrise is at 6:21 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:45 pm EDT.

In May, the average sunshine duration is 8.5h.

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

In May, the average daily maximum UV index in Triadelphia, West Virginia, is 6. A UV Index estimate of 6 to 7 represents a high health risk 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

60.8°F

72.3°F

79°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8mph

6.5mph

6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

11.6

9.5

11.2

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Triadelphia, WV

Average high temperature in May: 72.3°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.6°F).

Average low temperature in May: 51.1°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in May
Triadelphia, WV

Average pressure in May: 29.99"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
Triadelphia, WV

Average wind speed in May: 5.9mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

Average humidity in May
Triadelphia, WV

Average humidity in May: 79%

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

Average rainfall in May
Triadelphia, WV

Average rainfall in May: 2.68"

The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is November (1.69").

Average rainfall days in May
Triadelphia, 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 (9.4 days).

Average snowfall in May
Triadelphia, WV

Average snowfall in May: 0"

The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Triadelphia, WV

Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (14.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May: 14h and 24min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

Average sunshine in May: 8h and 30min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).