Marlborough
Connecticut, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Marlborough, CT

January, the same as December, is another cold winter month in Marlborough, Connecticut, with average temperature fluctuating between 34.3°F (1.3°C) and 22.8°F (-5.1°C). With an average high-temperature of 34.3°F (1.3°C) and an average low-temperature of 22.8°F (-5.1°C), January is the coldest month. Weather in January »

February, the last month of the winter, in Marlborough, is also a wintry month, with average temperature varying between 37°F (2.8°C) and 23.4°F (-4.8°C). In Marlborough, Connecticut, the average high-temperature in February is almost the same as in January - a still cold 37°F (2.8°C). Weather in February »

March, the first month of the spring, in Marlborough, is a chilly month, with average temperature fluctuating between 30.4°F (-0.9°C) and 44.4°F (6.9°C). In March, the average high-temperature marginally rises, from a cold 37°F (2.8°C) in February, to a chilly 44.4°F (6.9°C). Weather in March »

April in Marlborough, Connecticut, is a mild spring month, with average temperature ranging between max 56.5°F (13.6°C) and min 40.3°F (4.6°C). In Marlborough, the average high-temperature rises, from a chilly 44.4°F (6.9°C) in March, to a moderate 56.5°F (13.6°C). Weather in April »

May, the last month of the spring, in Marlborough, is an enjoyable month, with average temperature varying between 67.6°F (19.8°C) and 49.6°F (9.8°C). In May, the average high-temperature increases, from a moderate 56.5°F (13.6°C) in April, to an enjoyable 67.6°F (19.8°C). Weather in May »

The first month of the summer, June, is a warm month in Marlborough, Connecticut, with average temperature fluctuating between 75.7°F (24.3°C) and 57.4°F (14.1°C). In Marlborough, the average high-temperature marginally rises, from a comfortable 67.6°F (19.8°C) in May, to a warm 75.7°F (24.3°C). Weather in June »

July, the same as June, is a moderately hot summer month in Marlborough, Connecticut, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 82.2°F (27.9°C). With an average high-temperature of 82.2°F (27.9°C) and an average low-temperature of 64°F (17.8°C), July is the warmest month. The average heat index is estimated at a hot 88.5°F (31.4°C). Weather in July »

August, the last month of the summer, in Marlborough, is also a moderately hot month, with average temperature ranging between min 63°F (17.2°C) and max 80.2°F (26.8°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 80.2°F (26.8°C). Weather in August »

September, the first month of the autumn, in Marlborough, is also a moderately hot month, with average temperature varying between 56.7°F (13.7°C) and 73.4°F (23°C). In Marlborough, Connecticut, the average high-temperature marginally drops, from a moderately hot 80.2°F (26.8°C) in August, to a still warm 73.4°F (23°C). Weather in September »

October, like September, in Marlborough, Connecticut, is another enjoyable autumn month, with average temperature ranging between max 61.5°F (16.4°C) and min 47.7°F (8.7°C). In October, the average high-temperature decreases, from a warm 73.4°F (23°C) in September, to a comfortable 61.5°F (16.4°C). Weather in October »

November, the last month of the autumn, in Marlborough, is another chilly month, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 36.9°F (2.7°C). In November, the average high-temperature drops, from a comfortable 61.5°F (16.4°C) in October, to a chilly 49.6°F (9.8°C). Weather in November »

December, the first month of the winter, in Marlborough, is still a cold month, with average temperature ranging between min 29.7°F (-1.3°C) and max 40.3°F (4.6°C). In Marlborough, the average high-temperature drops, from a chilly 49.6°F (9.8°C) in November, to a wintry 40.3°F (4.6°C). Weather in December »

What is the coldest month in Marlborough?

The coldest month in Marlborough, Connecticut, is January, with an average high-temperature of 34.3°F (1.3°C) and an average low-temperature of 22.8°F (-5.1°C).

How much does it rain in Marlborough?

In Marlborough, Connecticut, during the entire year, the rain falls for 99.9 days and collects up to 9.41" (239mm) of precipitation.

When does it snow in Marlborough?

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

How many days does it snow in Marlborough?

In Marlborough, during the entire year, snow falls for 22.3 days, and aggregates up to 3.82" (97mm) of snow.

What is the most humid month in Marlborough?

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

What is the month with the least sunshine in Marlborough?

Months with the least sunshine in Marlborough, Connecticut, are February and December, with an average of 4.6h of sunshine.

When does it snow the most in Marlborough?

March is the month with the most snowfall. Snow falls for 5.3 days and accumulates 1.26" (32mm) of snow.

What is the least humid month in Marlborough?

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

When it does not snow in Marlborough?

In Marlborough snow does not fall in June through October.

When are the longest days in Marlborough?

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

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

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

What is the warmest month in Marlborough?

July is the warmest month, with an average high-temperature of 82.2°F (27.9°C) and an average low-temperature of 64°F (17.8°C).

What month has the most sunshine in Marlborough?

The month with the most sunshine in Marlborough, Connecticut, is August, with an average of 10.3h of sunshine.

What is the driest month in Marlborough?

The month with the least rainfall is September when the rain falls for 7.5 days and typically collects 0.35" (9mm) of precipitation.

What is the wettest month in Marlborough?

December is the month with the most rainfall in Marlborough. Rain falls for 6.8 days and accumulates 1.02" (26mm) of precipitation.

What is the month with the shortest days in Marlborough?

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

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

The month with the lowest UV index in Marlborough is December, with an average maximum UV index of 1.
Average temperature - Marlborough, CT
Average rainfall - Marlborough, CT

The wettest month (with the highest rainfall) is December (1.02").
The driest month (with the least rainfall) is September (0.35").

Average rainfall days - Marlborough, CT
Average snowfall - Marlborough, CT
Average snowfall days - Marlborough, CT

The month with the highest number of snowfall days is February (6.4 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight / Average sunshine - Marlborough, 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).

The month with the most sunshine is August (Average sunshine: 10.3h).
Months with the least sunshine are February and December (Average sunshine: 4.6).