Climate and monthly weather forecast
Newtown, CT

Weather in January

January, like December, in Newtown, Connecticut, is a wintry winter month, with an average temperature varying between 33.4°F (0.8°C) and 22.6°F (-5.2°C). With an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 22.6°F (-5.2°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Newtown, Connecticut, with an average temperature fluctuating between 36.5°F (2.5°C) and 23.5°F (-4.7°C). In February, the average high-temperature is almost the same as in January - a still cold 36.5°F (2.5°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Newtown, Connecticut, with an average temperature fluctuating between 44.1°F (6.7°C) and 30.9°F (-0.6°C). In March, the average high-temperature slightly increases from a cold 36.5°F (2.5°C) in February to a chilly 44.1°F (6.7°C). Weather in March »

Weather in April

April is a mild spring month in Newtown, Connecticut, with an average temperature varying between 40.6°F (4.8°C) and 56.1°F (13.4°C). In Newtown, the average high-temperature in April increases from a frosty 44.1°F (6.7°C) in March to a moderate 56.1°F (13.4°C). Weather in April »

Weather in May

May, the last month of the spring in Newtown, is an enjoyable month, with temperature in the range of an average low of 50.2°F (10.1°C) and an average high of 67.3°F (19.6°C). In Newtown, the average high-temperature in May rises from a mild 56.1°F (13.4°C) in April to a comfortable 67.3°F (19.6°C). Weather in May »

Weather in June

June, the first month of the summer in Newtown, is a warm month, with an average temperature varying between 57.7°F (14.3°C) and 75.2°F (24°C). In June, the average high-temperature marginally rises from an enjoyable 67.3°F (19.6°C) in May to a warm 75.2°F (24°C). Weather in June »

Weather in July

July, like June, in Newtown, Connecticut, is a moderately hot summer month, with an average temperature fluctuating between 64.9°F (18.3°C) and 82.2°F (27.9°C). With an average high-temperature of 82.2°F (27.9°C) and an average low-temperature of 64.9°F (18.3°C), July is the warmest month. The average heat index in July is estimated at a tropical 87.8°F (31°C). Weather in July »

Weather in August

August, the last month of the summer in Newtown, is also a moderately hot month, with an average temperature varying between 80.2°F (26.8°C) and 63.5°F (17.5°C). In Newtown, the average high-temperature in August is almost the same as in July - a still moderately hot 80.2°F (26.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Newtown, Connecticut, with an average temperature ranging between max 73°F (22.8°C) and min 57°F (13.9°C). In September, the average high-temperature marginally drops from a warm 80.2°F (26.8°C) in August to an agreeable 73°F (22.8°C). Weather in September »

Weather in October

October, like September, in Newtown, Connecticut, is another comfortable autumn month, with an average temperature fluctuating between 47.8°F (8.8°C) and 61.2°F (16.2°C). In Newtown, the average high-temperature in October drops from a pleasant 73°F (22.8°C) in September to an enjoyable 61.2°F (16.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Newtown, is another chilly month, with an average temperature varying between 36.5°F (2.5°C) and 48.7°F (9.3°C). In Newtown, the average high-temperature in November decreases from an enjoyable 61.2°F (16.2°C) in October to a chilly 48.7°F (9.3°C). Weather in November »

Weather in December

December, the first month of the winter in Newtown, is still a cold month, with an average temperature ranging between max 39.6°F (4.2°C) and min 29.3°F (-1.5°C). In December, the average high-temperature drops from a frosty 48.7°F (9.3°C) in November to a cold 39.6°F (4.2°C). Weather in December »
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FAQ

What is the coldest month in Newtown?

With an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 22.6°F (-5.2°C), January is the coldest month in Newtown.

What is the driest month in Newtown?

The months with the least rainfall are January and September Rain falls for 9.1 days and accumulates 2.4" (61mm) of rain.

How many days does it rain in Newtown?

In Newtown, Connecticut, during the entire year, the rain falls for 169.7 days and collects up to 36.93" (938mm) of precipitation.

When does it snow in Newtown?

January through May, October through December are months with snowfall in Newtown.

How much does it snow in Newtown?

In Newtown, Connecticut, during the entire year, snow falls for 34.5 days and aggregates up to 17.01" (432mm) of snow.

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

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 Newtown?

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

What is the snowiest month in Newtown?

The month with the most snowfall in Newtown is February, when snow falls for 9.5 days and typically aggregates up to 4.37" (111mm) of snow.

What is the month with the least sunshine in Newtown?

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

When is Daylight Saving Time (DST) in Newtown?

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

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

When it does not snow in Newtown?

June through September are months without snowfall in Newtown.

When are the longest days in Newtown?

With an average of 15h and 7min of daylight, June has the longest days of the year.

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

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

What is the warmest month in Newtown?

July is the warmest month in Newtown, Connecticut, with an average high-temperature of 82.2°F (27.9°C) and an average low-temperature of 64.9°F (18.3°C).

What is the month with the most sunshine in Newtown?

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

What is the rainiest month in Newtown?

The month with the most rainfall is December, when the rain falls for 12 days and typically aggregates up to 4.02" (102mm) of precipitation.

What is the month with the shortest days in Newtown?

The month with the shortest days is December, with an average of 9h and 14min of daylight.

Average temperature
Newtown, CT

Average temperature - Newtown, CT

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (33.4°F).

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure
Newtown, CT

Average pressure - Newtown, 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
Newtown, CT

Average wind speed - Newtown, CT

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average rainfall
Newtown, CT

Average rainfall - Newtown, CT

The wettest month (with the highest rainfall) is December (4.02").
The driest months (with the least rainfall) are January and September (2.4").

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Average rainfall days
Newtown, CT

Average rainfall days - Newtown, CT

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall
Newtown, CT

Average snowfall - Newtown, CT

The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Newtown, CT

Average snowfall days - Newtown, CT

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Newtown, CT

Average daylight / Average sunshine - Newtown, 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
Newtown, CT

Average sunshine days - Newtown, CT

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.1 days).

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Average UV index
Newtown, CT

Average UV index - Newtown, 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
Newtown, CT

Average visibility - Newtown, CT

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

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