May weather forecast
Porterwood, WV

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Weather in May

The last month of the spring, May, is a pleasant month in Porterwood, West Virginia, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 68.2°F (20.1°C).

Temperature

Porterwood's weather in May presents a rise in the average high-temperature, moving from a mild 57.7°F (14.3°C) in April to a pleasant 68.2°F (20.1°C). Porterwood's temperature lowers to a mean of 49.1°F (9.5°C) during the nights in May.

Humidity

In Porterwood, the average relative humidity in May is 81%.

Rainfall

May is the month with the most rainfall. Rain falls for 22 days and accumulates 4.02" (102mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Porterwood. May is the last month it regularly snows. During 0.4 snowfall days, in May, Porterwood aggregates 0.83" (21mm) of snow. Throughout the year, there are 63.8 snowfall days, and 38.74" (984mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 20min.
On the first day of May, sunrise is at 6:19 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:38 pm EDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

May temperatures in Porterwood vary between a high-temperature of 68.2°F (20.1°C) and a low-temperature of 49.1°F (9.5°C).

What is the average humidity in May in Porterwood?

In Porterwood, the average relative humidity in May is 81%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 22 days and accumulates 4.02" (102mm) of precipitation.

How many days does it rain in May?

In Porterwood, in May, during 22 rainfall days, 4.02" (102mm) of precipitation is typically accumulated.

What is the last month it snows in Porterwood?

May is the last month it regularly snows. During 0.4 snowfall days, in May, Porterwood aggregates 0.83" (21mm) of snow.

How many hours of daylight does Porterwood have in May?

In Porterwood, the average day length in May is 14h and 20min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:19 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:38 pm EDT.

How many hours of sunshine does Porterwood have in May?

In May, the average sunshine duration is 8.5h.

When is the highest UV index?

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

What is the UV index reading in May in Porterwood?

In Porterwood, the average daily maximum UV index in May is 5. A UV Index value 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
Porterwood, WV

Average temperature in May - Porterwood, WV
  • Average high temperature in May: 68.2°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in May: 49.1°F

The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in May
Porterwood, WV

Average pressure in May - Porterwood, WV
  • Average pressure in May: 30.01"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
Porterwood, WV

Average wind speed in May - Porterwood, WV
  • Average wind speed in May: 6.2mph

The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in May
Porterwood, WV

Average humidity in May - Porterwood, WV
  • Average humidity in May: 81%

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
Porterwood, WV

Average rainfall in May - Porterwood, WV
  • Average rainfall in May: 4.02"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in May
Porterwood, WV

Average rainfall days in May - Porterwood, WV
  • Average rainfall days in May: 22 days

The month with the highest number of rainy days is May (22 days).
The month with the least rainy days is February (11.2 days).

Average snowfall in May
Porterwood, WV

Average snowfall in May - Porterwood, WV
  • Average snowfall in May: 0.83"

The month with the highest snowfall is January (8.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Porterwood, WV

Average snowfall days in May - Porterwood, WV
  • Average snowfall days in May: 0.4 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
Porterwood, WV

Average daylight in May / Average sunshine in May - Porterwood, 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 30min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in May
Porterwood, WV

Average sunshine days in May - Porterwood, WV
  • Average sunshine days in May: 7.2 days

The months with the most sunshine days are October and November (13.3 days).
The month with the least sunshine days is January (6.5 days).

Average UV index in May
Porterwood, WV

Average UV index in May - Porterwood, 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, March, November and December (UV index 2).

Average cloud cover in May
Porterwood, WV

Average cloud cover in May - Porterwood, WV
  • Average cloud cover in May: 49

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 40).

Average visibility in May
Porterwood, WV

Average visibility in May - Porterwood, 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).

Porterwood, West Virginia, USA

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