Monthly weather forecast and climate
Thomaston, CT

Weather in January

January, like December, in Thomaston, Connecticut, is a wintry winter month, with average temperature varying between 32.5°F (0.3°C) and 20.7°F (-6.3°C). The coldest month is January, with an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 20.7°F (-6.3°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Thomaston, Connecticut, with temperature in the range of an average high of 36°F (2.2°C) and an average low of 21.6°F (-5.8°C). In February, the average high-temperature is almost the same as in January - a still wintry 36°F (2.2°C). Weather in February »

Weather in March

March, the first month of the spring, in Thomaston, is a frosty month, with average temperature fluctuating between 28.9°F (-1.7°C) and 43.5°F (6.4°C). In March, the average high-temperature marginally rises, from a cold 36°F (2.2°C) in February, to a chilly 43.5°F (6.4°C). Weather in March »

Weather in April

April in Thomaston, Connecticut, is a mild spring month, with average temperature ranging between min 39.2°F (4°C) and max 56.3°F (13.5°C). In April, the average high-temperature rises, from a frosty 43.5°F (6.4°C) in March, to a moderate 56.3°F (13.5°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Thomaston, Connecticut, with average temperature ranging between max 68.2°F (20.1°C) and min 48.7°F (9.3°C). In Thomaston, Connecticut, the average high-temperature rises, from a mild 56.3°F (13.5°C) in April, to a pleasant 68.2°F (20.1°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Thomaston, Connecticut, with average temperature ranging between max 75.7°F (24.3°C) and min 56.7°F (13.7°C). In June, the average high-temperature slightly increases, from an agreeable 68.2°F (20.1°C) in May, to a warm 75.7°F (24.3°C). Weather in June »

Weather in July

July, like June, in Thomaston, Connecticut, is another warm summer month, with average temperature fluctuating between 82.4°F (28°C) and 63.1°F (17.3°C). July is the warmest month, with an average high-temperature of 82.4°F (28°C) and an average low-temperature of 63.1°F (17.3°C). In July, the average heat index is estimated at a tropical 88.7°F (31.5°C). Weather in July »

Weather in August

August, the last month of the summer, in Thomaston, is also a moderately hot month, with average temperature fluctuating between 80.4°F (26.9°C) and 61.3°F (16.3°C). In August, the average high-temperature is essentially the same as in July - a still moderately hot 80.4°F (26.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Thomaston, Connecticut, with temperature in the range of an average high of 73.4°F (23°C) and an average low of 55.2°F (12.9°C). In Thomaston, the average high-temperature slightly decreases, from 80.4°F (26.9°C) in August, to a still moderately hot 73.4°F (23°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Thomaston, Connecticut, with average temperature fluctuating between 46°F (7.8°C) and 60.3°F (15.7°C). In October, the average high-temperature decreases, from a moderately hot 73.4°F (23°C) in September, to a moderate 60.3°F (15.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Thomaston, Connecticut, with average temperature fluctuating between 48.4°F (9.1°C) and 34.9°F (1.6°C). In November, the average high-temperature drops, from a moderate 60.3°F (15.7°C) in October, to a chilly 48.4°F (9.1°C). Weather in November »

Weather in December

December, the first month of the winter, in Thomaston, is also a wintry month, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 38.3°F (3.5°C). In Thomaston, Connecticut, the average high-temperature decreases, from a chilly 48.4°F (9.1°C) in November, to a cold 38.3°F (3.5°C). Weather in December »
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FAQ

What is the coldest month in Thomaston?

January is the coldest month, with an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 20.7°F (-6.3°C).

How much does it rain in Thomaston?

In Thomaston, Connecticut, during the entire year, the rain falls for 170 days and collects up to 35.43" (900mm) of precipitation.

When does it snow in Thomaston?

Months with snowfall in Thomaston, Connecticut, are January through May, October through December.

How much does it snow in Thomaston?

In Thomaston, Connecticut, during the entire year, snow falls for 33.9 days, and aggregates up to 18.43" (468mm) of snow.

What are the months with the lowest UV index in Thomaston?

Months with the lowest UV index in Thomaston, Connecticut, are January through March, November and December, with an average maximum UV index of 2.

What is the most humid month in Thomaston?

The most humid month in Thomaston is February, with an average relative humidity of 80%.

When does it snow the most in Thomaston?

February is the month with the most snowfall in Thomaston. Snow falls for 9.3 days and accumulates 5.12" (130mm) of snow.

What is the month with the least sunshine in Thomaston?

February has the least sunshine of the year, with an average of 4.5h of sunshine.

What is the least humid month in Thomaston?

April is the least humid month in Thomaston, with an average relative humidity of 72%.

When it does not snow in Thomaston?

June through September are months without snowfall in Thomaston.

When are the longest days in Thomaston?

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

What are the months with the highest UV index in Thomaston?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Thomaston.

What is the warmest month in Thomaston?

The warmest month is July, with an average high-temperature of 82.4°F (28°C) and an average low-temperature of 63.1°F (17.3°C).

What are the months with the most sunshine in Thomaston?

Months with the most sunshine in Thomaston, Connecticut, are July and August, with an average of 10.2h of sunshine.

What is the driest month in Thomaston?

September is the month with the least rainfall. Rain falls for 13.6 days and accumulates 2.24" (57mm) of precipitation.

What is the wettest month in Thomaston?

The month with the most rainfall in Thomaston, Connecticut, is December when the rain falls for 11.7 days and typically aggregates up to 3.74" (95mm) of precipitation.

What is the month with the shortest days in Thomaston?

The month with the shortest days in Thomaston is December, with an average of 9.2h of daylight.

Average temperature
Thomaston, CT

Average temperature - Thomaston, CT

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.5°F).

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure
Thomaston, CT

Average pressure - Thomaston, CT

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed
Thomaston, CT

Average wind speed - Thomaston, CT

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average rainfall
Thomaston, CT

Average rainfall - Thomaston, CT

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is September (2.24").

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Average rainfall days
Thomaston, CT

Average rainfall days - Thomaston, CT

Months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (9.3 days).

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Average snowfall
Thomaston, CT

Average snowfall - Thomaston, CT

The month with the highest snowfall is February (5.12").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Thomaston, CT

Average snowfall days - Thomaston, CT

The month with the highest number of snowfall days is February (9.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Thomaston, CT

Average daylight / Average sunshine - Thomaston, CT

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

Months with the most sunshine are July and August (Average sunshine: 10.2h).
The month with the least sunshine is February (Average sunshine: 4.5h).

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Average sunshine days
Thomaston, CT

Average sunshine days - Thomaston, CT

The month with the most sunshine days is January (16.7 days).
The month with the least sunshine days is June (10 days).

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Average UV index
Thomaston, CT

Average UV index - Thomaston, CT

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Thomaston, CT

Average visibility - Thomaston, CT

Months with the highest visibility are January, April, October, November and December (6mi).
Months with the lowest visibility are February, March, May, June, July, August and September (5mi).

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