May weather forecastBoston, VA
May
Weather in May
The last month of the spring, May, is a warm month in Boston, Virginia, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 54.7°F (12.6°C).Temperature
A rise in the average high-temperature is observed during May, moving from a refreshing 65.5°F (18.6°C) in April to a moderately hot 75.2°F (24°C). May witnesses an average nighttime temperature of 54.7°F (12.6°C) in Boston, Virginia.Humidity
The average relative humidity in May is 76%.Rainfall
May is the month with the most rainfall in Boston. Rain falls for 16.1 days and accumulates 2.68" (68mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Boston, Virginia. May is the last month it regularly snows. During 0.1 snowfall days, in May, Boston aggregates 0.08" (2mm) of snow. In Boston, during the entire year, snow falls for 15.4 days and aggregates up to 9.17" (233mm) of snow.Daylight
In May, the average length of the day in Boston, Virginia, is 14h and 17min.On the first day of May, sunrise is at 6:14 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:30 pm EDT.
Sunshine
In Boston, the average sunshine in May is 8.9h.UV index
The months with the highest UV index in Boston are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 6 during May leads to these advisories:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Boston, VA
- Average high temperature in May: 75.2°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (41.4°F).
- Average low temperature in May: 54.7°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in May
Boston, VA
- 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
Boston, VA
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in May
Boston, VA
- Average humidity in May: 76%
The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is July (72%).
Average rainfall in May
Boston, VA
- Average rainfall in May: 2.68"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in May
Boston, VA
- Average rainfall days in May: 16.1 days
The month with the highest number of rainy days is May (16.1 days).
The months with the least rainy days are January and November (8.3 days).
Average snowfall in May
Boston, VA
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (2.36").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Boston, VA
- Average snowfall days in May: 0.1 days
The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Boston, VA
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in May
Boston, VA
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in May
Boston, VA
- 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
Boston, VA
- Average cloud cover in May: 43
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Boston, VA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
