Climate and monthly weather forecast
Trumbull, CT

Weather in January

January, like December, in Trumbull, Connecticut, is another cold winter month, with an average temperature ranging between min 26.1°F (-3.3°C) and max 35.2°F (1.8°C). With an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 26.1°F (-3.3°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Trumbull, is also a wintry month, with an average temperature varying between 37.8°F (3.2°C) and 27°F (-2.8°C). In Trumbull, Connecticut, the average high-temperature in February is practically the same as in January - a still wintry 37.8°F (3.2°C). Weather in February »

Weather in March

March, the first month of the spring in Trumbull, is a frosty month, with an average temperature varying between 44.2°F (6.8°C) and 33.3°F (0.7°C). In March, the average high-temperature slightly increases from a cold 37.8°F (3.2°C) in February to a chilly 44.2°F (6.8°C). Weather in March »

Weather in April

April in Trumbull, Connecticut, is a fresh spring month, with an average temperature varying between 42.8°F (6°C) and 54.9°F (12.7°C). In Trumbull, the average high-temperature in April increases from a frosty 44.2°F (6.8°C) in March to a fresh 54.9°F (12.7°C). Weather in April »

Weather in May

May, the last month of the spring in Trumbull, is a comfortable month, with an average temperature varying between 65.8°F (18.8°C) and 52.2°F (11.2°C). In May, the average high-temperature rises from a fresh 54.9°F (12.7°C) in April to a comfortable 65.8°F (18.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Trumbull, Connecticut, with an average temperature ranging between min 60.6°F (15.9°C) and max 73.9°F (23.3°C). In Trumbull, Connecticut, the average high-temperature in June slightly increases from a comfortable 65.8°F (18.8°C) in May to a warm 73.9°F (23.3°C). Weather in June »

Weather in July

July, like June, in Trumbull, Connecticut, is another warm summer month, with an average temperature fluctuating between 81.1°F (27.3°C) and 67.8°F (19.9°C). With an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 67.8°F (19.9°C), July is the warmest month. In July, the average heat index is estimated at a tropical 86°F (30°C). Weather in July »

Weather in August

August, the last month of the summer in Trumbull, is another warm month, with an average temperature fluctuating between 67.3°F (19.6°C) and 80.1°F (26.7°C). In Trumbull, Connecticut, the average high-temperature in August is almost the same as in July - a still warm 80.1°F (26.7°C). Weather in August »

Weather in September

September, the first month of the autumn in Trumbull, is still a pleasant month, with an average temperature ranging between max 72.7°F (22.6°C) and min 60.8°F (16°C). In September, the average high-temperature marginally drops from a moderately hot 80.1°F (26.7°C) in August to a pleasant 72.7°F (22.6°C). Weather in September »

Weather in October

October, like September, in Trumbull, Connecticut, is another comfortable autumn month, with an average temperature ranging between max 62.1°F (16.7°C) and min 51.3°F (10.7°C). In Trumbull, the average high-temperature in October decreases from an agreeable 72.7°F (22.6°C) in September to an enjoyable 62.1°F (16.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Trumbull, Connecticut, with an average temperature varying between 40.1°F (4.5°C) and 50.7°F (10.4°C). In Trumbull, the average high-temperature in November decreases from a comfortable 62.1°F (16.7°C) in October to a cool 50.7°F (10.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Trumbull, Connecticut, with temperature in the range of an average high of 41.7°F (5.4°C) and an average low of 32.9°F (0.5°C). In December, the average high-temperature drops from a cool 50.7°F (10.4°C) in November to a wintry 41.7°F (5.4°C). Weather in December »
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FAQ

What is the coldest month in Trumbull?

January is the coldest month in Trumbull, Connecticut, with an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 26.1°F (-3.3°C).

How many days does it rain in Trumbull?

Throughout the year, there are 170.6 rainfall days, and 37.09" (942mm) of precipitation is accumulated.

When does it snow in Trumbull?

Months with snowfall in Trumbull are January through April, November and December.

How much does it snow in Trumbull?

In Trumbull, Connecticut, during the entire year, snow falls for 24.4 days and aggregates up to 9.41" (239mm) of snow.

What is the month with the lowest UV index in Trumbull?

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

What is the most humid month in Trumbull?

The months with the highest humidity in Trumbull, Connecticut, are February, May and June, with an average relative humidity of 76%.

What is the snowiest month in Trumbull?

February is the month with the most snowfall in Trumbull. Snow falls for 7.3 days and accumulates 2.87" (73mm) of snow.

What is the month with the least sunshine in Trumbull?

February has the least sunshine of the year, with an average of 4.8h of sunshine.

When is Daylight Saving Time (DST) in Trumbull?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, 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 Trumbull?

April and November, with an average relative humidity of 72%, are the least humid months in Trumbull, Connecticut.

When it does not snow in Trumbull?

May through October are months without snowfall.

When are the longest days in Trumbull?

The month with the longest days in Trumbull, Connecticut, is June, with an average of 15h and 6min of daylight.

What is the month with the highest UV index in Trumbull?

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

What is the warmest month in Trumbull?

With an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 67.8°F (19.9°C), July is the warmest month.

What month has the most sunshine in Trumbull?

With an average of 10.6h of sunshine, July has the most sunshine of the year in Trumbull, Connecticut.

What is the driest month in Trumbull?

The month with the least rainfall in Trumbull is September, when the rain falls for 13.5 days and typically collects 2.4" (61mm) of precipitation.

What is the rainiest month in Trumbull?

The month with the most rainfall in Trumbull is December, when the rain falls for 12.8 days and typically aggregates up to 4.13" (105mm) of precipitation.

What is the month with the shortest days in Trumbull?

The month with the shortest days in Trumbull, Connecticut, is December, with an average of 9h and 16min of daylight.

Average temperature
Trumbull, CT

Average temperature - Trumbull, CT

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (35.2°F).

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure
Trumbull, CT

Average pressure - Trumbull, 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
Trumbull, CT

Average wind speed - Trumbull, CT

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity
Trumbull, CT

Average humidity - Trumbull, CT

The months with the highest relative humidity are February, May and June (76%).
The months with the lowest relative humidity are April and November (72%).

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Average rainfall
Trumbull, CT

Average rainfall - Trumbull, CT

The wettest month (with the highest rainfall) is December (4.13").
The driest month (with the least rainfall) is September (2.4").

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Average rainfall days
Trumbull, CT

Average rainfall days - Trumbull, CT

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (9.4 days).

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Average snowfall
Trumbull, CT

Average snowfall - Trumbull, CT

The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Trumbull, CT

Average snowfall days - Trumbull, CT

The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Trumbull, CT

Average daylight / Average sunshine - Trumbull, 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 16min).

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days
Trumbull, CT

Average sunshine days - Trumbull, CT

The month with the most sunshine days is January (17 days).
The month with the least sunshine days is June (10.7 days).

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Average UV index
Trumbull, CT

Average UV index - Trumbull, 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
Trumbull, CT

Average visibility - Trumbull, CT

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

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