May weather forecast
McMechen, WV

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Weather in May

May, the last month of the spring in McMechen, is an agreeable month, with an average temperature varying between 72.7°F (22.6°C) and 51.4°F (10.8°C).

Temperature

May brings a temperature change, with average high-temperatures moving from April's refreshing 61.3°F (16.3°C) to a pleasant 72.7°F (22.6°C). Throughout May, an average low-temperature of 51.4°F (10.8°C) is expected in McMechen.

Humidity

In May, the average relative humidity is 79%.

Rainfall

In McMechen, during May, the rain falls for 20.8 days and regularly aggregates up to 3.54" (90mm) of precipitation. In McMechen, during the entire year, the rain falls for 186.2 days and collects up to 35.16" (893mm) of precipitation.

Snowfall

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

Daylight

In McMechen, the average length of the day in May is 14h and 25min.
On the first day of May in McMechen, West Virginia, sunrise is at 6:21 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:45 pm EDT.

Sunshine

The average sunshine in May in McMechen is 8.5h.

UV index

In May, the average daily maximum UV index in McMechen, West Virginia, is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 5 in May translates into this advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What are the temperatures in McMechen in May?

In McMechen, 72.7°F (22.6°C) is the average high-temperature and 51.4°F (10.8°C) is the average low-temperature during May.

What is the average humidity in May in McMechen?

In McMechen, the average relative humidity in May is 79%.

How many days does it rain in May in McMechen?

In McMechen, during May, the rain falls for 20.8 days and regularly aggregates up to 3.54" (90mm) of precipitation.

When it does not snow in McMechen?

May through October are months without snowfall.

Does it snow in McMechen in May?

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

How many hours of daylight does McMechen have in May?

In McMechen, West Virginia, the average day length in May is 14h and 25min.

When is the sunrise / sunset in May in McMechen?

On the first day of May, sunrise is at 6:21 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:45 pm EDT.

How long on average sun shines in May in McMechen?

In May, the average sunshine duration in McMechen, West Virginia, is 8.5h.

How high is the UV index in May in McMechen?

In May, the average daily maximum UV index in McMechen, West Virginia, is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
McMechen, WV

Average temperature in May - McMechen, WV
  • Average high temperature in May: 72.7°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

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Average pressure in May
McMechen, WV

Average pressure in May - McMechen, 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).

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Average wind speed in May
McMechen, WV

Average wind speed in May - McMechen, WV
  • Average wind speed in May: 5.7mph

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in May
McMechen, WV

Average humidity in May - McMechen, 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%).

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Average rainfall in May
McMechen, WV

Average rainfall in May - McMechen, WV
  • Average rainfall in May: 3.54"

The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (2.13").

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Average rainfall days in May
McMechen, WV

Average rainfall days in May - McMechen, WV
  • Average rainfall days in May: 20.8 days

The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (11.3 days).

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Average snowfall in May
McMechen, WV

Average snowfall in May - McMechen, WV
  • Average snowfall in May: 0"

The month with the highest snowfall is January (5.31").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
McMechen, WV

Average snowfall days in May - McMechen, WV
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - McMechen, WV
  • Average daylight in May: 14h and 2min

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 3min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in May
McMechen, WV

Average sunshine days in May - McMechen, WV
  • Average sunshine days in May: 8.4 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (8.4 days).

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Average UV index in May
McMechen, WV

Average UV index in May - McMechen, WV
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
McMechen, WV

Average cloud cover in May - McMechen, WV
  • Average cloud cover in May: 47

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in May
McMechen, WV

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

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

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McMechen, West Virginia, USA

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