Climate and monthly weather forecast
Sterling, CT

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Weather in January

January, like December, in Sterling, Connecticut, is another cold winter month, with temperature in the range of an average high of 34°F (1.1°C) and an average low of 22.3°F (-5.4°C). January tends to be the coldest month, with temperatures averaging a daily high of 34°F (1.1°C) and a low of 22.3°F (-5.4°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Sterling, Connecticut, with temperature in the range of an average high of 36.7°F (2.6°C) and an average low of 23.4°F (-4.8°C). In Sterling, February's average high-temperature stands at a still wintry 36.7°F (2.6°C), closely related to the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Sterling, Connecticut, with temperature in the range of an average high of 43.7°F (6.5°C) and an average low of 30.6°F (-0.8°C). A slight uplift in the average high-temperature marks March, adjusting from February's cold 36.7°F (2.6°C) to a frosty 43.7°F (6.5°C). Weather in March »

Weather in April

April in Sterling, Connecticut, is a moderate spring month, with an average temperature varying between 40.1°F (4.5°C) and 55.6°F (13.1°C). As Sterling, Connecticut, welcomes April, the average high-temperature sees a rise, transitioning from a frosty 43.7°F (6.5°C) in March to a refreshing 55.6°F (13.1°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Sterling, Connecticut, with an average temperature fluctuating between 49.5°F (9.7°C) and 66.2°F (19°C). The shift from April to May sees an increase in the average high-temperature, transitioning from a refreshing 55.6°F (13.1°C) to an enjoyable 66.2°F (19°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Sterling, Connecticut, with an average temperature ranging between min 56.5°F (13.6°C) and max 73.9°F (23.3°C). Sterling's June weather indicates a minor increase in high-temperatures, edging from May's refreshing 66.2°F (19°C) to a warm 73.9°F (23.3°C). Weather in June »

Weather in July

July, like June, in Sterling, Connecticut, is another warm summer month, with an average temperature ranging between min 63.3°F (17.4°C) and max 80.8°F (27.1°C). In Sterling, the peak temperatures are generally noted in July, averaging a high of 80.8°F (27.1°C) and a low of 63.3°F (17.4°C). In July, the heat index is computed to be a tropical 86°F (30°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Sterling, Connecticut, with an average temperature ranging between min 62.2°F (16.8°C) and max 79.7°F (26.5°C). Sterling, Connecticut, records an average high-temperature of a still moderately hot 79.7°F (26.5°C) in August, maintaining a close correlation with July's 80.8°F (27.1°C). Weather in August »

Weather in September

September, the first month of the autumn in Sterling, is still a pleasant month, with an average temperature ranging between max 72.5°F (22.5°C) and min 55.9°F (13.3°C). With the arrival of September, Sterling experiences a modest decline in average high-temperatures, transitioning from a warm 79.7°F (26.5°C) in August to a pleasant 72.5°F (22.5°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Sterling, Connecticut, with an average temperature fluctuating between 61°F (16.1°C) and 47.1°F (8.4°C). Start of October brings a shift in the average high-temperature, falling from September's agreeable 72.5°F (22.5°C) to a comfortable 61°F (16.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Sterling, Connecticut, with an average temperature varying between 36.5°F (2.5°C) and 49.1°F (9.5°C). In November, the average high-temperature decreases from a comfortable 61°F (16.1°C) in October to a chilly 49.1°F (9.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Sterling, Connecticut, with temperature in the range of an average low of 29.3°F (-1.5°C) and an average high of 40.1°F (4.5°C). The arrival of December signals a shift in temperature, down from a chilly 49.1°F (9.5°C) in November to an icy 40.1°F (4.5°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Sterling?

In Sterling, January is known for its average lowest temperatures, reaching a high of 34°F (1.1°C) and a low of 22.3°F (-5.4°C).

How many days does it rain in Sterling?

Throughout the year, there are 163.2 rainfall days, and 33.7" (856mm) of precipitation is accumulated.

When does it snow in Sterling?

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

How much does it snow in Sterling?

In Sterling, during the entire year, snow falls for 29.7 days and aggregates up to 12.99" (330mm) of snow.

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

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

What are the most humid months in Sterling?

The months with the highest humidity are February, June, July and September, with an average relative humidity of 79%.

What is the month with the least sunshine in Sterling?

The month with the least sunshine in Sterling, Connecticut, is February, with an average of 4.8h of sunshine.

What is the snowiest month in Sterling?

The month with the most snowfall in Sterling is March, when snow falls for 6.9 days and typically aggregates up to 3.62" (92mm) of snow.

When is Daylight Saving Time (DST) in Sterling?

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 Sterling?

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

When it does not snow in Sterling?

June through October are months without snowfall in Sterling.

When are the longest days in Sterling?

The month with the longest days is June, with an average of 15h and 12min of daylight.

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

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

What is the hottest time of year in Sterling?

July, noted for its average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 63.3°F (17.4°C), is considered the warmest month.

What is the month with the most sunshine in Sterling?

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

What is the driest month in Sterling?

The month with the least rainfall is September, when the rain falls for 13.4 days and typically collects 1.73" (44mm) of precipitation.

What is the rainiest month in Sterling?

December is the month with the most rainfall. Rain falls for 11.2 days and accumulates 3.39" (86mm) of precipitation.

What is the month with the shortest days in Sterling?

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

Average temperature
Sterling, CT

Average temperature - Sterling, CT

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (34°F).

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

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Average pressure
Sterling, CT

Average pressure - Sterling, CT

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Sterling, CT

Average wind speed - Sterling, CT

The windiest months (with the highest average wind speed) are January and March (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity
Sterling, CT

Average humidity - Sterling, CT

The months with the highest relative humidity are February, June, July and September (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall
Sterling, CT

Average rainfall - Sterling, CT

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days
Sterling, CT

Average rainfall days - Sterling, CT

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall
Sterling, CT

Average snowfall - Sterling, CT

The month with the highest snowfall is March (3.62").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Sterling, CT

Average snowfall days - Sterling, CT

The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Sterling, CT

Average daylight / Average sunshine - Sterling, CT

The month with the longest days is June (Average daylight: 15h and 12min).
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 48min).

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Average sunshine days
Sterling, CT

Average sunshine days - Sterling, CT

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index
Sterling, CT

Average UV index - Sterling, 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
Sterling, CT

Average visibility - Sterling, CT

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

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Sterling, Connecticut, USA

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