May weather forecastThree Rivers, MA
May
Weather in May
May, the last month of the spring in Three Rivers, is an agreeable month, with an average temperature fluctuating between 48.4°F (9.1°C) and 68.7°F (20.4°C).Temperature
The arrival of May sees a shift in the average high-temperature, moving from a mild 56.1°F (13.4°C) in April to an agreeable 68.7°F (20.4°C). In the month of May, Three Rivers records a consistent average low-temperature of 48.4°F (9.1°C).Humidity
In Three Rivers, the average relative humidity in May is 74%.Rainfall
In Three Rivers, in May, during 15.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Three Rivers, during the entire year, the rain falls for 152.1 days and collects up to 29.37" (746mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Three Rivers. During 0.1 snowfall days, in May, Three Rivers aggregates 0.24" (6mm) of snow. In Three Rivers, during the entire year, snow falls for 33.4 days and aggregates up to 18.43" (468mm) of snow.Daylight
In Three Rivers, the average length of the day in May is 14h and 36min.On the first day of the month, sunrise is at 5:43 am and sunset at 7:49 pm. On the last day of May, sunrise is at 5:15 am and sunset at 8:18 pm EDT.
Sunshine
The average sunshine in May in Three Rivers is 8.5h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Three Rivers, MA
- Average high temperature in May: 68.7°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in May: 48.4°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in May
Three Rivers, MA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Three Rivers, MA
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Three Rivers, MA
- Average humidity in May: 74%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Three Rivers, MA
- Average rainfall in May: 2.52"
The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in May
Three Rivers, MA
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in May
Three Rivers, MA
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Three Rivers, MA
- Average snowfall days in May: 0.1 days
The months with the highest number of snowfall days are January and February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Three Rivers, 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: 8h and 30min
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
Three Rivers, MA
- Average sunshine days in May: 13 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in May
Three Rivers, MA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Three Rivers, MA
- Average cloud cover in May: 46
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
Three Rivers, MA
- Average visibility in May: 5mi
The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).
