Climate and monthly weather forecast
Cromwell, CT

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Weather in January

January, like December, in Cromwell, Connecticut, is a wintry winter month, with temperature in the range of an average high of 34°F (1.1°C) and an average low of 22.1°F (-5.5°C). Cromwell's coldest month, January, registers temperatures that range from a high of 34°F (1.1°C) to a low 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 an average temperature fluctuating between 37°F (2.8°C) and 23°F (-5°C). The arrival of February brings an average high-temperature of a still icy 37°F (2.8°C), nearly identical to January's 34°F (1.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Cromwell, Connecticut, with an average temperature fluctuating between 44.8°F (7.1°C) and 30.4°F (-0.9°C). March signals a minor shift in the average high-temperature, moving from February's cold 37°F (2.8°C) 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 temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 40.3°F (4.6°C). In Cromwell, the average high-temperature in April increases from a frosty 44.8°F (7.1°C) in March to a moderate 56.8°F (13.8°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Cromwell, Connecticut, with an average temperature varying between 68.2°F (20.1°C) and 49.8°F (9.9°C). Cromwell's May weather brings a rise in high-temperatures, moving from a mild 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 varying between 57.4°F (14.1°C) and 76.1°F (24.5°C). A gentle upsurge in temperatures occurs as May gives way to June, with average highs shifting from a pleasant 68.2°F (20.1°C) 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 temperature in the range of an average low of 64°F (17.8°C) and an average high of 82.9°F (28.3°C). July is the month when Cromwell's temperatures reach their peak, with averages of 82.9°F (28.3°C) and lows of 64°F (17.8°C). July's heat index is evaluated at a hot 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Cromwell, is also a moderately hot month, with an average temperature ranging between max 81°F (27.2°C) and min 63°F (17.2°C). Stepping into August, Cromwell records an average high-temperature of a still warm 81°F (27.2°C), almost consistent with July. 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 ranging between max 73.6°F (23.1°C) and min 56.3°F (13.5°C). The transition to September results in a modest reduction in average high-temperature, moving from 81°F (27.2°C) in August to a still warm 73.6°F (23.1°C). Weather in September »

Weather in October

October, like September, in Cromwell, Connecticut, is another refreshing autumn month, 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). The onset of October comes with a shift in the average high-temperature, falling from a warm 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 temperature in the range of an average high of 49.3°F (9.6°C) and an average low of 36.7°F (2.6°C). With November's onset, the average high-temperature recedes from October's refreshing 61.7°F (16.5°C) 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 an icy month, with an average temperature fluctuating between 39.7°F (4.3°C) and 29.1°F (-1.6°C). As Cromwell enters December, the average high-temperature decreases from the a frosty 49.3°F (9.6°C) of November to a wintry 39.7°F (4.3°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Cromwell?

Temperature readings reach their annual highs in January, averaging 34°F (1.1°C) and a minimum average of 22.1°F (-5.5°C).

How many days does it rain in Cromwell?

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

When does it snow in Cromwell?

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

How many days does it snow in Cromwell?

In Cromwell, Connecticut, during the entire year, snow falls for 29.4 days and aggregates up to 14.76" (375mm) of snow.

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

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

What is the most humid month in Cromwell?

February is the most humid month in Cromwell, Connecticut, with an average relative humidity of 79%.

What is the month with the least sunshine in Cromwell?

February has the least sunshine of the year, with an average of 4.6h of sunshine.

When does it snow the most in Cromwell?

The month with the most snowfall in Cromwell is March, when snow falls for 6.2 days and typically aggregates up to 4.13" (105mm) of snow.

When is Daylight Saving Time (DST) in Cromwell?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Cromwell?

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

When it does not snow in Cromwell?

In Cromwell, Connecticut, snow does not fall in June through October.

When are the longest days in Cromwell?

June has the longest days of the year in Cromwell, Connecticut, with an average of 15h and 6min of daylight.

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

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

What is the hottest time of year in Cromwell?

Cromwell reaches its average highest temperatures in July, measuring 82.9°F (28.3°C) at the peak and 64°F (17.8°C) at the lowest.

What is the month with the most sunshine in Cromwell?

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

What is the driest month in Cromwell?

September is the month with the least rainfall in Cromwell. Rain falls for 11.9 days and accumulates 1.89" (48mm) of precipitation.

What is the wettest month in Cromwell?

The month with the most rainfall 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?

With an average of 9h and 12min of daylight, December has the shortest days of the year in Cromwell, Connecticut.

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 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

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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Cromwell, Connecticut, USA

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