May weather forecastMartinsburg, WV
May
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's onset is marked by a temperature increase, moving from an enjoyable 63.1°F (17.3°C) in April to a warm 73.6°F (23.1°C). In Martinsburg, May nights witness a steady temperature drop to a fresh 52.2°F (11.2°C).Humidity
May, October and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In Martinsburg, in May, during 14 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. Throughout the year, there are 117.3 rainfall days, and 12.24" (311mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in May is 14h and 22min.On the first day of May, 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.
Sunshine
In Martinsburg, the average sunshine in May is 8.7h.UV index
The months with the highest UV index in Martinsburg are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in May /
Average sunshine in May
Martinsburg, WV
- Average daylight in May: 14h and 24min
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 42min
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).
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).
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).
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).
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).
