May weather forecastChester, MA
May
Weather in May
The last month of the spring, May, is a refreshing month in Chester, Massachusetts, with an average temperature fluctuating between 47.1°F (8.4°C) and 66.2°F (19°C).Temperature
The shift into May is characterized by a rise in the average high-temperature, transitioning from April's fresh 54°F (12.2°C) to a refreshing 66.2°F (19°C). In Chester, the expected average low-temperature for May is a frosty 47.1°F (8.4°C).Humidity
In May, the average relative humidity is 76%.Rainfall
In May, the rain falls for 16.9 days. Throughout May, 3.03" (77mm) of precipitation is accumulated. In Chester, during the entire year, the rain falls for 155.8 days and collects up to 32.87" (835mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.7 snowfall days, in May, Chester aggregates 0.43" (11mm) of snow. In Chester, during the entire year, snow falls for 54.3 days and aggregates up to 34.45" (875mm) of snow.Daylight
The average length of the day in May is 14h and 37min.On the first day of May, sunrise is at 5:46 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:21 pm EDT.
Sunshine
The average sunshine in May is 8.1h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 5 in May suggests the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Chester, MA
- Average high temperature in May: 66.2°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in May: 47.1°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in May
Chester, MA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Chester, MA
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Chester, MA
- Average humidity in May: 76%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (74%).
Average rainfall in May
Chester, MA
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is October (3.35").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in May
Chester, MA
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in May
Chester, MA
- Average snowfall in May: 0.43"
The month with the highest snowfall is February (7.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Chester, MA
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Chester, 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 6min).
- Average sunshine in May: 8h and 6min
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 6min).
Average sunshine days in May
Chester, MA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in May
Chester, MA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Chester, MA
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in May
Chester, MA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
