June weather forecastGroton, MA
June
Weather in June
June, the first month of the summer in Groton, is a warm month, with an average temperature fluctuating between 75.4°F (24.1°C) and 55.6°F (13.1°C).Temperature
June's onset witnesses a minor shift in the average high-temperature, moving from a comfortable 67.6°F (19.8°C) in May to a warm 75.4°F (24.1°C). The average temperature during June nights is registered at a mild 55.6°F (13.1°C).Humidity
In Groton, the average relative humidity in June is 75%.Rainfall
In Groton, during June, the rain falls for 14.6 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Groton, during the entire year, the rain falls for 142.2 days and collects up to 26.97" (685mm) of precipitation.Snowfall
In Groton, snow does not fall in June through September.Daylight
June has the longest days of the year, with an average of 15h and 18min of daylight.On the first day of the month, sunrise is at 5:10 am and sunset at 8:17 pm. On the last day of June, sunrise is at 5:12 am and sunset at 8:28 pm EDT.
Sunshine
In Groton, the average sunshine in June is 9h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 6 in June, converts into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Groton, MA
- Average high temperature in June: 75.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in June: 55.6°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in June
Groton, MA
- Average pressure in June: 29.92"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in June
Groton, MA
- Average wind speed in June: 6mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in June
Groton, MA
- Average humidity in June: 75%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).
Average rainfall in June
Groton, MA
- Average rainfall in June: 2.32"
The wettest month (with the highest rainfall) is December (2.8").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in June
Groton, MA
- Average rainfall days in June: 14.6 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in June
Groton, MA
- Average snowfall in June: 0"
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 June
Groton, MA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Groton, MA
- Average daylight in June: 15h and 18min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in June: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in June
Groton, MA
- Average sunshine days in June: 14 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in June
Groton, MA
- Average UV index in June: 6
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 June
Groton, MA
- Average cloud cover in June: 43
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in June
Groton, MA
- Average visibility in June: 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).





