Monthly weather forecast and climate
Andover, CT

Weather in January

January, the same as December, is a wintry winter month in Andover, Connecticut, with average temperature varying between 33.4°F (0.8°C) and 21.6°F (-5.8°C). January is the coldest month, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21.6°F (-5.8°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Andover, Connecticut, with average temperature fluctuating between 22.5°F (-5.3°C) and 36.7°F (2.6°C). In February, the average high-temperature is almost the same as in January - a still cold 36.7°F (2.6°C). Weather in February »

Weather in March

March, the first month of the spring, in Andover, is a frosty month, with average temperature ranging between min 29.7°F (-1.3°C) and max 43.7°F (6.5°C). In Andover, the average high-temperature slightly increases, from a cold 36.7°F (2.6°C) in February, to a chilly 43.7°F (6.5°C). Weather in March »

Weather in April

April in Andover, Connecticut, is a moderate spring month, with average temperature fluctuating between 55.9°F (13.3°C) and 39.6°F (4.2°C). In April, the average high-temperature increases, from a frosty 43.7°F (6.5°C) in March, to a mild 55.9°F (13.3°C). Weather in April »

Weather in May

May, the last month of the spring, in Andover, is a comfortable month, with average temperature ranging between max 67.1°F (19.5°C) and min 48.9°F (9.4°C). In May, the average high-temperature rises, from a moderate 55.9°F (13.3°C) in April, to an enjoyable 67.1°F (19.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Andover, Connecticut, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 56.3°F (13.5°C). In June, the average high-temperature slightly increases, from a comfortable 67.1°F (19.5°C) in May, to a warm 74.8°F (23.8°C). Weather in June »

Weather in July

July, like June, in Andover, Connecticut, is another warm summer month, with average temperature ranging between min 63°F (17.2°C) and max 81.9°F (27.7°C). July is the warmest month, with an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 63°F (17.2°C). In July, the average heat index is evaluated at a hot 88°F (31.1°C). Weather in July »

Weather in August

August, the last month of the summer, in Andover, is also a moderately hot month, with average temperature ranging between min 62.2°F (16.8°C) and max 80.2°F (26.8°C). In August, the average high-temperature is essentially the same as in July - a still warm 80.2°F (26.8°C). Weather in August »

Weather in September

September, the first month of the autumn, in Andover, is also an agreeable month, with average temperature fluctuating between 73.2°F (22.9°C) and 55.4°F (13°C). In Andover, the average high-temperature marginally drops, from a moderately hot 80.2°F (26.8°C) in August, to an agreeable 73.2°F (22.9°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Andover, Connecticut, with average temperature fluctuating between 61°F (16.1°C) and 46.4°F (8°C). In Andover, Connecticut, the average high-temperature drops, from a pleasant 73.2°F (22.9°C) in September, to a comfortable 61°F (16.1°C). Weather in October »

Weather in November

November, the last month of the autumn, in Andover, is also a frosty month, with average temperature fluctuating between 36.1°F (2.3°C) and 49.1°F (9.5°C). In Andover, the average high-temperature decreases, from a comfortable 61°F (16.1°C) in October, to a frosty 49.1°F (9.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Andover, Connecticut, with temperature in the range of an average high of 39.4°F (4.1°C) and an average low of 28.6°F (-1.9°C). In Andover, the average high-temperature decreases, from a chilly 49.1°F (9.5°C) in November, to a cold 39.4°F (4.1°C). Weather in December »
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FAQ

What is the coldest month in Andover?

The coldest month is January, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21.6°F (-5.8°C).

How many days does it rain in Andover?

In Andover, during the entire year, the rain falls for 164.2 days and collects up to 33.74" (857mm) of precipitation.

When does it snow in Andover?

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

How much does it snow in Andover?

Throughout the year, in Andover, Connecticut, there are 31.6 snowfall days, and 15.98" (406mm) of snow is accumulated.

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

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 Andover?

Months with the highest humidity in Andover, Connecticut, are February and October, with an average relative humidity of 79%.

What is the snowiest month in Andover?

The month with the most snowfall is March when snow falls for 7.3 days and typically aggregates up to 4.41" (112mm) of snow.

What is the least humid month in Andover?

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

When it does not snow in Andover?

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

When are the longest days in Andover?

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

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

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

What is the warmest month in Andover?

July is the warmest month, with an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 63°F (17.2°C).

What month has the most sunshine in Andover?

August has the most sunshine of the year, with an average of 10.3h of sunshine.

What is the driest month in Andover?

The month with the least rainfall in Andover, Connecticut, is September when the rain falls for 13.5 days and typically collects 1.73" (44mm) of precipitation.

What is the rainiest month in Andover?

The month with the most rainfall is December when the rain falls for 11.5 days and typically aggregates up to 3.46" (88mm) of precipitation.

What is the month with the shortest days in Andover?

December has the shortest days of the year, with an average of 9.2h of daylight.

What is the month with the least sunshine in Andover?

December has the least sunshine of the year in Andover, Connecticut, with an average of 4.7h of sunshine.

Average temperature
Andover, CT

Average temperature - Andover, CT

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.4°F).

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure
Andover, CT

Average pressure - Andover, CT

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

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Average wind speed
Andover, CT

Average wind speed - Andover, CT

The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity
Andover, CT

Average humidity - Andover, CT

Months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall
Andover, CT

Average rainfall - Andover, CT

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days
Andover, CT

Average rainfall days - Andover, CT

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall
Andover, CT

Average snowfall - Andover, CT

The month with the highest snowfall is March (4.41").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Andover, CT

Average snowfall days - Andover, CT

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

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Average daylight / Average sunshine
Andover, CT

Average daylight / Average sunshine - Andover, 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).
The month with the least sunshine is December (Average sunshine: 4.7h).

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Average sunshine days
Andover, CT

Average sunshine days - Andover, CT

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index
Andover, CT

Average UV index - Andover, CT

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Andover, CT

Average visibility - Andover, CT

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

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