May weather forecastCharlton Depot, MA
May
Weather in May
The last month of the spring, May, is an enjoyable month in Charlton Depot, Massachusetts, with an average temperature fluctuating between 66.6°F (19.2°C) and 47.5°F (8.6°C).Temperature
In Charlton Depot, the average high-temperature in May rises, from a cool 54.5°F (12.5°C) in April, to a refreshing 66.6°F (19.2°C). During May, Charlton Depot experiences a consistent low-temperature average of 47.5°F (8.6°C).Humidity
In Charlton Depot, the average relative humidity in May is 76%.Rainfall
In Charlton Depot, in May, during 16.5 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 147.4 rainfall days, and 29.76" (756mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Charlton Depot aggregates 0.2" (5mm) of snow. Throughout the year, there are 39.9 snowfall days, and 23.82" (605mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 36min.On the first day of the month, sunrise is at 5:42 am and sunset at 7:47 pm. On the last day of May, sunrise is at 5:14 am and sunset at 8:17 pm EDT.
Sunshine
In Charlton Depot, the average sunshine in May is 7.8h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: An average UV index of 5 in May transforms into this advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Charlton Depot, MA
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in May: 47.5°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in May
Charlton Depot, MA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Charlton Depot, MA
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in May
Charlton Depot, MA
- Average humidity in May: 76%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Charlton Depot, MA
- Average rainfall in May: 2.44"
The wettest months (with the highest rainfall) are October and November (2.76").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in May
Charlton Depot, MA
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in May
Charlton Depot, MA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Charlton Depot, MA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Charlton Depot, MA
- Average daylight in May: 14h and 36min
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 12min).
- Average sunshine in May: 7h and 48min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in May
Charlton Depot, MA
- Average sunshine days in May: 13 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in May
Charlton Depot, 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
Charlton Depot, MA
- Average cloud cover in May: 51
The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in May
Charlton Depot, MA
- Average visibility in May: 5mi
The months with the highest visibility are April and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and November (5mi).





