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
The start of May brings a shift in the average high-temperature, increasing from April's fresh 55°F (12.8°C) to a comfortable 67.6°F (19.8°C). Throughout May, Williamsburg anticipates an average low-temperature of 47.5°F (8.6°C).Humidity
In Williamsburg, the average relative humidity in May is 74%.Rainfall
In Williamsburg, during May, the rain falls for 13.9 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 134.1 rainfall days, and 14.84" (377mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Williamsburg aggregates 0.08" (2mm) of snow. In Williamsburg, during the entire year, snow falls for 28.6 days and aggregates up to 6.5" (165mm) of snow.Daylight
In May, the average length of the day is 14h and 37min.On the first day of the month, sunrise is at 5:44 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:16 am and sunset at 8:20 pm EDT.
Sunshine
The average sunshine in May in Williamsburg is 8.6h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Williamsburg have in May?
When are sunrise and sunset in May in Williamsburg?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Williamsburg, MA
- Average high temperature in May: 67.6°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 (30.4°F).
- Average low temperature in May: 47.5°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in May
Williamsburg, MA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Williamsburg, MA
- Average wind speed in May: 6.3mph
The windiest months (with the highest average wind speed) are January, February and March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Williamsburg, MA
- Average humidity in May: 74%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).
Average rainfall in May
Williamsburg, MA
- Average rainfall in May: 1.38"
The wettest month (with the highest rainfall) is October (1.61").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in May
Williamsburg, MA
- Average rainfall days in May: 13.9 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in May
Williamsburg, MA
- Average snowfall in May: 0.08"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Williamsburg, MA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Williamsburg, MA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Williamsburg, MA
- Average sunshine days in May: 14.3 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (13.7 days).
Average UV index in May
Williamsburg, MA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Williamsburg, MA
- Average cloud cover in May: 45
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Williamsburg, MA
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August, September and October (5mi).
Williamsburg, Massachusetts, USA
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