Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
As Martinsburg transitions into May, the average high-temperature shows a change, moving from a mild 57.9°F (14.4°C) in April to a pleasant 68.9°F (20.5°C). An average low-temperature of 49.3°F (9.6°C) is noted during the nights in May.Humidity
The average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 19.3 days and accumulates 3.31" (84mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Martinsburg aggregates 0.12" (3mm) of snow. Throughout the year, there are 52.3 snowfall days, and 25.55" (649mm) of snow is accumulated.Daylight
In Martinsburg, Pennsylvania, the average length of the day in May is 14h and 26min.On the first day of the month, sunrise is at 6:11 am and sunset at 8:09 pm. On the last day of May, sunrise is at 5:45 am and sunset at 8:36 pm EDT.
Sunshine
In May, the average sunshine in Martinsburg is 8.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In May, an average UV index of 5 transforms into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May in Martinsburg?
What is the rainiest month in Martinsburg?
How many days does it rain in May in Martinsburg?
What is the last month it snows?
How many hours of daylight does Martinsburg have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Martinsburg have in May?
What is the month with the highest UV index?
How high is the UV index in May?
Average temperature in May
Martinsburg, PA
- Average high temperature in May: 68.9°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in May: 49.3°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in May
Martinsburg, PA
- 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).
Average wind speed in May
Martinsburg, PA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Martinsburg, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in May
Martinsburg, PA
- Average rainfall in May: 3.31"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in May
Martinsburg, PA
- Average rainfall days in May: 19.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in May
Martinsburg, PA
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (6.38").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Martinsburg, PA
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Martinsburg, PA
- 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 July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Martinsburg, PA
- Average sunshine days in May: 9.2 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in May
Martinsburg, PA
- 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
Martinsburg, PA
- Average cloud cover in May: 47
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in May
Martinsburg, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Martinsburg, Pennsylvania, USA
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