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
May's arrival signals an increase in average high-temperatures, moving from April's moderate 57.9°F (14.4°C) to a pleasant 68.9°F (20.5°C). May in Martinsburg is noted for a mean low-temperature of 49.3°F (9.6°C).Humidity
In Martinsburg, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall in Martinsburg. Rain falls for 19.3 days and accumulates 3.31" (84mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Martinsburg. May is the last month it regularly snows in Martinsburg. During 0.4 snowfall days, in May, Martinsburg aggregates 0.12" (3mm) of snow. In Martinsburg, during the entire year, snow falls for 52.3 days and aggregates up to 25.55" (649mm) of snow.Daylight
In May, the average length of the day is 14h and 26min.On the first day of May in Martinsburg, Pennsylvania, sunrise is at 6:11 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:36 pm EDT.
Sunshine
In Martinsburg, Pennsylvania, the average sunshine in May is 8.5h.UV index
The months with the highest UV index in Martinsburg are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The UV index of 5 during May leads to these advisories:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What is the average May temperature in Martinsburg?
What is the average humidity in May in Martinsburg?
What is the wettest month in Martinsburg?
How much does it rain in Martinsburg in May?
What is the last month it snows in Martinsburg?
How many hours of daylight does Martinsburg have in May?
When are sunrise and sunset in May in Martinsburg?
How many hours of sunshine does Martinsburg have in May?
When is the highest UV index in Martinsburg?
What is the UV index reading in May in Martinsburg?
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
Weather forecast for your location
2. Allow the app to use your location
