Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average sea temperature in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
June's arrival sees a mild rise in the average high-temperature, transitioning from May's comfortable 63.3°F (17.4°C) to an agreeable 71.4°F (21.9°C). An average low-temperature of 59°F (15°C) is common during the nights of June.Humidity
With an average relative humidity of 80%, June is the most humid month.Rainfall
In Groton, during June, the rain falls for 15 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 159.8 rainfall days, and 33.07" (840mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Ocean temperature
In Groton, in June, the average water temperature is 62.1°F (16.7°C).Note: Swimming becomes less enjoyable for most at a surface water temperature of 62.1°F (16.7°C). As the temperature decreases below 69.8°F (21°C), breathing becomes increasingly difficult.
Daylight
With an average of 15h and 6min of daylight, June has the longest days of the year.On the first day of June in Groton, sunrise is at 5:16 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:25 pm EDT.
Sunshine
In June, the average sunshine in Groton is 9.5h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 6 in June translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average June temperature?
What is the most humid month?
What is the average humidity in June?
How many days does it rain in June in Groton?
When it does not snow?
What is the ocean temperature in June?
When are the longest days?
What is the average length of the day in June?
When are sunrise and sunset in June?
How many hours of sunshine does Groton have in June?
When is the highest UV index?
How high is the UV index in June?
Average temperature in June
Groton, CT
- Average high temperature in June: 71.4°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in June: 59°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in June
Groton, CT
- Average pressure in June: 29.93"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 June
Groton, CT
- Average wind speed in June: 8.1mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in June
Groton, CT
- Average humidity in June: 80%
The month with the highest relative humidity is June (80%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in June
Groton, CT
- Average rainfall in June: 2.72"
The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in June
Groton, CT
- Average rainfall days in June: 15 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in June
Groton, CT
- Average snowfall in June: 0"
The month with the highest snowfall is March (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Groton, CT
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in June
Groton, CT
- Average sea temperature in June: 62°F
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in June /
Average sunshine in June
Groton, CT
- Average daylight in June: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in June: 9h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in June
Groton, CT
- Average sunshine days in June: 12.8 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in June
Groton, CT
- 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, CT
- Average cloud cover in June: 37
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in June
Groton, CT
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Groton, Connecticut, USA
Weather forecast for your location
2. Allow the app to use your location