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 rise in the average high-temperature, moving from a fresh 53.6°F (12°C) in April to a refreshing 66.9°F (19.4°C). During May, the temperature tends to dip to an average of 46.2°F (7.9°C) at night.Humidity
The average relative humidity in May is 74%.Rainfall
In May, the rain falls for 14.6 days. Throughout May, 1.93" (49mm) of precipitation is accumulated. In Chesterfield, during the entire year, the rain falls for 141.4 days and collects up to 24.45" (621mm) of precipitation.Snowfall
Months with snowfall in Chesterfield are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Chesterfield aggregates 0.24" (6mm) of snow. In Chesterfield, during the entire year, snow falls for 40.7 days and aggregates up to 22.56" (573mm) of snow.Daylight
The average length of the day in May is 14h and 37min.On the first day of the month, sunrise is at 5:45 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:17 am and sunset at 8:21 pm EDT.
Sunshine
The average sunshine in May is 8.8h.UV index
In Chesterfield, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 5 during May translates into the following directions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Chesterfield in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Chesterfield have in May?
How high is the UV index in May?
Average temperature in May
Chesterfield, MA
- Average high temperature in May: 66.9°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 (28.8°F).
- Average low temperature in May: 46.2°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in May
Chesterfield, 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
Chesterfield, MA
- Average wind speed in May: 6.3mph
The windiest months (with the highest average wind speed) are February and March (7.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Chesterfield, MA
- Average humidity in May: 74%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Chesterfield, MA
- Average rainfall in May: 1.93"
The wettest month (with the highest rainfall) is October (2.6").
The driest month (with the least rainfall) is August (1.57").
Average rainfall days in May
Chesterfield, MA
- Average rainfall days in May: 14.6 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in May
Chesterfield, MA
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Chesterfield, MA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Chesterfield, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Chesterfield, MA
- Average sunshine days in May: 14.3 days
The month with the most sunshine days is January (16.9 days).
The month with the least sunshine days is April (12.7 days).
Average UV index in May
Chesterfield, 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
Chesterfield, MA
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Chesterfield, MA
- Average visibility in May: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Chesterfield, Massachusetts, USA
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