Glastonbury (CT) Climate by Month
The temperature in Glastonbury can vary greatly throughout the year.
The temperatures shift from warm
to cold.
It also has a relatively rain/snowy climate with high levels of precipitation.
Now, let’s explore all the climate details to give you a full picture.
Average day and night temperature
Depending on the time of the year, temperatures range from comfortable to chilly in Glastonbury. On average, daytime temperatures range from a comfortable 29°C in July to a chilly 3°C in January. Nighttime temperatures can drop, with averages reaching -7°C in January.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Glastonbury has a relatively rain/snowy climate with high precipitation levels, averaging 1227 mm of rain/snowfall annually. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 150 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, January, still receives a respectable 81 mm of snow/rainfall.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
In Glastonbury, summer days are longer and more sunny, with daily sunshine hours peaking at 9.8 hours in July. As the darker season arrives, the brightness of the sun becomes less. November sees a soft sun for only 4.6 hours.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is low throughout the year in Glastonbury.
Relative humidity over the year
The best time of year to visit Glastonbury in the United States of America
During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
The hottest season / summer takes place in June, July, August and September.
July has an average maximum temperature of 29°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 3°C.
June tops the wettest month list with 150 mm of rainfall.
January is the driest month with 81 mm of precipitation.
July is the sunniest month with an average of 293 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
