Monthly weather forecast and climate
Glastonbury, CT

The coldest month is January, with an average high-temperature of 36°F (2.2°C) and an average low-temperature of 18°F (-7.8°C). In Glastonbury, 3.1" (80mm) of precipitation is typically accumulated.
Weather in January »
The average high-temperature, is 39°F (3.9°C), while the average low-temperature is 21.9°F (-5.6°C). The month with the least rainfall in Glastonbury is February when 2.8" (69.9mm) of precipitation is typically aggregated.
Weather in February »
In March, the average high-temperature is 48°F (8.9°C), and the average low-temperature is 28.9°F (-1.7°C). Throughout March, 3.6" (90.7mm) of precipitation is accumulated.
Weather in March »
The average high-temperature, in April, is 60.1°F (15.6°C), while the average low-temperature is 39.9°F (4.4°C). During April, Glastonbury regularly aggregates up to 3.9" (98.6mm) of precipitation.
Weather in April »
The average high-temperature, is 70°F (21.1°C), while the average low-temperature is 48.9°F (9.4°C). In Glastonbury, in May, 3.9" (98.6mm) of precipitation is typically accumulated.
Weather in May »
In June, the average high-temperature is 79°F (26.1°C), and the average low-temperature is 59°F (15°C). Throughout June, 4" (101.3mm) of precipitation is accumulated.
Weather in June »
With an average high-temperature of 84°F (28.9°C) and an average low-temperature of 64.9°F (18.3°C), July is the warmest month in Glastonbury, Connecticut. During July, Glastonbury regularly aggregates up to 4" (101.6mm) of precipitation.
Weather in July »
The average high-temperature, is 82°F (27.8°C), while the average low-temperature is 63°F (17.2°C). During August, Glastonbury regularly aggregates up to 3.7" (93mm) of precipitation.
Weather in August »
The average high-temperature, in Glastonbury, Connecticut, is 75°F (23.9°C), while the average low-temperature is 54°F (12.2°C). During September, Glastonbury regularly aggregates up to 3.5" (88.4mm) of precipitation.
Weather in September »
The average high-temperature, in October, is 63°F (17.2°C), while the average low-temperature is 43°F (6.1°C). The month with the most rainfall is October when 4.1" (105.2mm) of precipitation is typically aggregated.
Weather in October »
The average high-temperature, in November, is 52°F (11.1°C), while the average low-temperature is 35.1°F (1.7°C). In Glastonbury, in November, 3.8" (97.5mm) of precipitation is typically accumulated.
Weather in November »
The average high-temperature, in December, is 41°F (5°C), while the average low-temperature is 24.1°F (-4.4°C). In Glastonbury, Connecticut, 3.4" (85.1mm) of precipitation is typically accumulated.
Weather in December »

What is the coldest month in Glastonbury?

The coldest month in Glastonbury is January, with an average high-temperature of 36°F (2.2°C) and an average low-temperature of 18°F (-7.8°C).

How much does it rain in Glastonbury?

Throughout the year, in Glastonbury, 43.7" (1109.9mm) of rain is accumulated.

What is the driest month in Glastonbury?

February is the month with the least rainfall, with 2.8" (69.9mm) of accumulated precipitation.

When are the longest days in Glastonbury?

With an average of 15.2h of daylight, June has the longest days of the year in Glastonbury, Connecticut.

What is the warmest month in Glastonbury?

With an average high-temperature of 84°F (28.9°C) and an average low-temperature of 64.9°F (18.3°C), July is the warmest month in Glastonbury, Connecticut.

What is the rainiest month in Glastonbury?

The month with the most rainfall in Glastonbury, Connecticut, is October when 4.1" (105.2mm) of precipitation is typically aggregated.

What is the month with the shortest days in Glastonbury?

The month with the shortest days in Glastonbury is December, with an average of 9.2h of daylight.
Average rainfall - Glastonbury, CT
Average daylight - Glastonbury, CT

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

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