Climate and monthly weather forecast
Cromwell, CT

Weather in January

January, like December, in Cromwell, Connecticut, is a wintry winter month, with an average temperature ranging between min 22.1°F (-5.5°C) and max 34°F (1.1°C). The coldest month is January, with an average high-temperature of 34°F (1.1°C) and an average low-temperature of 22.1°F (-5.5°C). Weather in January »

Weather in February

February, the last month of the winter in Cromwell, is also a wintry month, with temperature in the range of an average high of 37°F (2.8°C) and an average low of 23°F (-5°C). In February, the average high-temperature is essentially the same as in January - a still cold 37°F (2.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Cromwell, Connecticut, with temperature in the range of an average low of 30.4°F (-0.9°C) and an average high of 44.8°F (7.1°C). In Cromwell, the average high-temperature in March marginally rises from a wintry 37°F (2.8°C) in February to a chilly 44.8°F (7.1°C). Weather in March »

Weather in April

April is a mild spring month in Cromwell, Connecticut, with an average temperature fluctuating between 40.3°F (4.6°C) and 56.8°F (13.8°C). In April, the average high-temperature increases from a chilly 44.8°F (7.1°C) in March to a moderate 56.8°F (13.8°C). Weather in April »

Weather in May

May, the last month of the spring in Cromwell, is a pleasant month, with an average temperature fluctuating between 68.2°F (20.1°C) and 49.8°F (9.9°C). In Cromwell, the average high-temperature in May rises from a moderate 56.8°F (13.8°C) in April to an agreeable 68.2°F (20.1°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Cromwell, Connecticut, with an average temperature fluctuating between 76.1°F (24.5°C) and 57.4°F (14.1°C). In June, the average high-temperature slightly increases from a pleasant 68.2°F (20.1°C) in May to a warm 76.1°F (24.5°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Cromwell, Connecticut, with an average temperature varying between 64°F (17.8°C) and 82.9°F (28.3°C). With an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 64°F (17.8°C), July is the warmest month. In July, the average heat index is calculated to be a tropical 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Cromwell, is another warm month, with an average temperature varying between 63°F (17.2°C) and 81°F (27.2°C). In August, the average high-temperature is essentially the same as in July - a still warm 81°F (27.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Cromwell, is also a moderately hot month, with an average temperature fluctuating between 56.3°F (13.5°C) and 73.6°F (23.1°C). In Cromwell, the average high-temperature in September slightly decreases from 81°F (27.2°C) in August to a still moderately hot 73.6°F (23.1°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Cromwell, Connecticut, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 61.7°F (16.5°C). In October, the average high-temperature drops from a moderately hot 73.6°F (23.1°C) in September to an enjoyable 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Cromwell, Connecticut, with an average temperature varying between 36.7°F (2.6°C) and 49.3°F (9.6°C). In November, the average high-temperature drops from an enjoyable 61.7°F (16.5°C) in October to a chilly 49.3°F (9.6°C). Weather in November »

Weather in December

December, the first month of the winter in Cromwell, is also a wintry month, with an average temperature varying between 39.7°F (4.3°C) and 29.1°F (-1.6°C). In Cromwell, the average high-temperature in December drops from a frosty 49.3°F (9.6°C) in November to a cold 39.7°F (4.3°C). Weather in December »
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FAQ

What is the coldest month in Cromwell?

With an average high-temperature of 34°F (1.1°C) and an average low-temperature of 22.1°F (-5.5°C), January is the coldest month in Cromwell.

How many days does it rain in Cromwell?

Throughout the year, in Cromwell, there are 162.2 rainfall days, and 34.13" (867mm) of precipitation is accumulated.

When does it snow in Cromwell?

Months with snowfall in Cromwell are January through May, November and December.

How much does it snow in Cromwell?

Throughout the year, in Cromwell, there are 29.4 snowfall days, and 14.76" (375mm) of snow is accumulated.

When is the lowest UV index in Cromwell?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the most humid month in Cromwell?

With an average relative humidity of 79%, February is the most humid month.

What is the month with the least sunshine in Cromwell?

The month with the least sunshine in Cromwell, Connecticut, is February, with an average of 4.6h of sunshine.

What is the snowiest month in Cromwell?

March is the month with the most snowfall. Snow falls for 6.2 days and accumulates 4.13" (105mm) of snow.

When is Daylight Saving Time (DST) in Cromwell?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Cromwell, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Cromwell?

The least humid month in Cromwell, Connecticut, is April, with an average relative humidity of 71%.

When it does not snow in Cromwell?

June through October are months without snowfall in Cromwell.

When are the longest days in Cromwell?

With an average of 15h and 8min of daylight, June has the longest days of the year.

When is the highest UV index in Cromwell?

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

What is the warmest month in Cromwell?

The warmest month is July, with an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 64°F (17.8°C).

What are the months with the most sunshine in Cromwell?

The months with the most sunshine are July and August, with an average of 10.3h of sunshine.

What is the driest month in Cromwell?

The month with the least rainfall is September, when the rain falls for 11.9 days and typically collects 1.89" (48mm) of precipitation.

What is the wettest month in Cromwell?

The month with the most rainfall in Cromwell, Connecticut, is December, when the rain falls for 11.9 days and typically aggregates up to 3.66" (93mm) of precipitation.

What is the month with the shortest days in Cromwell?

The month with the shortest days is December, with an average of 9h and 13min of daylight.

Average pressure
Cromwell, CT

Average pressure - Cromwell, CT

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

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Average wind speed
Cromwell, CT

Average wind speed - Cromwell, CT

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average rainfall
Cromwell, CT

Average rainfall - Cromwell, CT

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days
Cromwell, CT

Average rainfall days - Cromwell, CT

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall
Cromwell, CT

Average snowfall - Cromwell, CT

The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Cromwell, CT

Average snowfall days - Cromwell, CT

The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Cromwell, CT

Average daylight / Average sunshine - Cromwell, CT

The month with the longest days is June (Average daylight: 15h and 8min).
The month with the shortest days is December (Average daylight: 9h and 13min).

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Cromwell, CT

Average sunshine days - Cromwell, CT

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.3 days).

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Average UV index
Cromwell, CT

Average UV index - Cromwell, CT

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).

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Average visibility
Cromwell, CT

Average visibility - Cromwell, CT

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

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