May weather forecast
Delmar, WV

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Weather in May

May, the last month of the spring in Delmar, is a pleasant month, with an average temperature ranging between max 71.6°F (22°C) and min 50.9°F (10.5°C).

Temperature

May's onset brings a rise in the average high-temperature, moving from a mild 60.4°F (15.8°C) in April to a pleasant 71.6°F (22°C). In the month of May, the nighttime temperature dips to a steady average of 50.9°F (10.5°C).

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 20.5 days and typically aggregates up to 4.02" (102mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Delmar. During 0.3 snowfall days, in May, Delmar aggregates 0.31" (8mm) of snow. Throughout the year, there are 63.1 snowfall days, and 32.32" (821mm) of snow is accumulated.

Daylight

In Delmar, the average length of the day in May is 14h and 22min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:14 pm. On the last day of May, in Delmar, sunrise is at 5:54 am and sunset at 8:41 pm EDT.

Sunshine

In Delmar, the average sunshine in May is 8.8h.

UV index

The months with the highest UV index are May through July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Delmar?

In May, the average high-temperature and low-temperature in Delmar are 71.6°F (22°C) and 50.9°F (10.5°C) respectively.

What is the average humidity in May in Delmar?

The average relative humidity in May is 79%.

What is the rainiest month in Delmar?

The month with the most rainfall in Delmar is May, when the rain falls for 20.5 days and typically aggregates up to 4.02" (102mm) of precipitation.

How many days does it rain in May in Delmar?

In Delmar, West Virginia, in May, during 20.5 rainfall days, 4.02" (102mm) of precipitation is typically accumulated.

What is the last month it snows in Delmar?

May is the last month it regularly snows in Delmar, West Virginia. During 0.3 snowfall days, in May, Delmar aggregates 0.31" (8mm) of snow.

How many hours of daylight does Delmar have in May?

In Delmar, West Virginia, the average day length in May is 14h and 22min.

When is the sunrise / sunset in May in Delmar?

In May, on the first day of the month, sunrise is at 6:19 am and sunset at 8:14 pm. On the last day of the month, in Delmar, sunrise is at 5:54 am and sunset at 8:41 pm EDT.

How long on average sun shines in May in Delmar?

In May, the average sunshine duration in Delmar is 8.8h.

What is the month with the highest UV index in Delmar?

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

What is the UV index reading in May in Delmar?

The average daily maximum UV index in May in Delmar is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Delmar, WV

Average temperature in May - Delmar, WV
  • Average high temperature in May: 71.6°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in May: 50.9°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in May
Delmar, WV

Average pressure in May - Delmar, 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
Delmar, WV

Average wind speed in May - Delmar, WV
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in May
Delmar, WV

Average humidity in May - Delmar, 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 July and August (77%).

Average rainfall in May
Delmar, WV

Average rainfall in May - Delmar, 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
Delmar, WV

Average rainfall days in May - Delmar, WV
  • Average rainfall days in May: 20.5 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is January (11.1 days).

Average snowfall in May
Delmar, WV

Average snowfall in May - Delmar, WV
  • Average snowfall in May: 0.31"

The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Delmar, WV

Average snowfall days in May - Delmar, WV
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Delmar, 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 24min).

  • Average sunshine in May: 8h and 5min

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).

Average sunshine days in May
Delmar, WV

Average sunshine days in May - Delmar, WV
  • Average sunshine days in May: 8.6 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.7 days).

Average UV index in May
Delmar, WV

Average UV index in May - Delmar, WV
  • Average UV index in May: 6

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Delmar, WV

Average cloud cover in May - Delmar, WV
  • Average cloud cover in May: 46

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

Average visibility in May
Delmar, WV

Average visibility in May - Delmar, 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).

Delmar, West Virginia, USA

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