May weather forecast
Martinsburg, WV

Share

Weather in May

May’s arrival in Martinsburg notes a stark change from the chill of winter to the tenderness of spring, with floral blooms adding vibrance to city life. In fact, the city receives its highest amount of rainfall this month, with 1.46" (37mm) recorded. The warming trend continues, supporting the lively splash of colours across the city. Longer days and more sunshine create beautiful opportunities to enjoy the great outdoors. Winds die down, while the lush greenery flourishes with the increase in humidity.

Temperature

May brings a rise in Martinsburg's average high-temperature, moving from a refreshing 63.1°F (17.3°C) in April to a moderately hot 73.6°F (23.1°C). In the month of May, an average of 52.2°F (11.2°C) marks the low-temperature in Martinsburg.

Humidity

The months with the highest humidity in Martinsburg are May, October and December, with an average relative humidity of 78%.

Rainfall

In Martinsburg, in May, it is raining for 14 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 117.3 rainfall days, and 12.24" (311mm) of precipitation is accumulated.

Snowfall

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

Daylight

In May, the average length of the day is 14h and 22min.
On the first day of the month, sunrise is at 6:11 am and sunset at 8:05 pm. On the last day of May, in Martinsburg, sunrise is at 5:46 am and sunset at 8:32 pm EDT.

Sunshine

In May, the average sunshine is 8.7h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In May, the maximum UV index of 6 suggests these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
[Resources]

Frequently asked questions

What is the temperature in May in Martinsburg?

An average high-temperature, in May, in Martinsburg, is 73.6°F (23.1°C) and the average low-temperature is 52.2°F (11.2°C).

What is the most humid month in Martinsburg?

The months with the highest humidity are May, October and December, with an average relative humidity of 78%.

What is the average humidity in May in Martinsburg?

The average relative humidity in May in Martinsburg, West Virginia, is 78%.

How many days does it rain in May in Martinsburg?

In Martinsburg, West Virginia, in May, during 14 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow in Martinsburg?

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

Does it snow in Martinsburg in May?

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

What is the average length of the day in May in Martinsburg?

In May, the average day length in Martinsburg is 14h and 22min.

What time are sunrise and sunset in May in Martinsburg?

On the first day of May in Martinsburg, sunrise is at 6:11 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:32 pm EDT.

How long on average sun shines in May in Martinsburg?

In Martinsburg, the average sunshine duration in May is 8.7h.

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

May through August, with an average maximum UV index of 6, are months with the highest UV index in Martinsburg, West Virginia.

What is the UV index intensity in May in Martinsburg?

In May, the average daily maximum UV index in Martinsburg, West Virginia, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Martinsburg, WV

Average temperature in May - Martinsburg, WV
  • Average high temperature in May: 73.6°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in May: 52.2°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

[Resources]

Average pressure in May
Martinsburg, WV

Average pressure in May - Martinsburg, 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 (29.95"Hg).

[Resources]

Average wind speed in May
Martinsburg, WV

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

The windiest month (with the highest average wind speed) is March (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

[Resources]

Average humidity in May
Martinsburg, WV

Average humidity in May - Martinsburg, WV
  • Average humidity in May: 78%

The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).

[Resources]

Average rainfall in May
Martinsburg, WV

Average rainfall in May - Martinsburg, WV
  • Average rainfall in May: 1.46"

The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is January (0.67").

[Resources]

Average rainfall days in May
Martinsburg, WV

Average rainfall days in May - Martinsburg, WV
  • Average rainfall days in May: 14 days

The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (4.5 days).

[Resources]

Average snowfall in May
Martinsburg, WV

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

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days in May
Martinsburg, WV

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

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

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

Average daylight in May / Average sunshine in May - Martinsburg, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

[Resources]

Average sunshine days in May
Martinsburg, WV

Average sunshine days in May - Martinsburg, WV
  • Average sunshine days in May: 14.6 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (14.6 days).

[Resources]

Average UV index in May
Martinsburg, WV

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

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

[Resources]

Average cloud cover in May
Martinsburg, WV

Average cloud cover in May - Martinsburg, WV
  • Average cloud cover in May: 45

The months with the most cloud cover are January, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).

[Resources]

Average visibility in May
Martinsburg, WV

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

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

[Resources]

Martinsburg, West Virginia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location