Climate and monthly weather forecast
Chester, CT

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Weather in January

January, the same as December, is an icy winter month in Chester, Connecticut, with temperature in the range of an average high of 35.2°F (1.8°C) and an average low of 25.5°F (-3.6°C). January is the coldest month, with an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 25.5°F (-3.6°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Chester, Connecticut, with temperature in the range of an average high of 37.9°F (3.3°C) and an average low of 26.2°F (-3.2°C). As February unfolds, the average high-temperature reaches a still wintry 37.9°F (3.3°C), hinting at a slight fluctuation from the previous month. Weather in February »

Weather in March

March, the first month of the spring in Chester, is a chilly month, with an average temperature varying between 32.5°F (0.3°C) and 43.7°F (6.5°C). Chester's March weather indicates a minor ascent in high-temperatures, adjusting from a cold 37.9°F (3.3°C) in February to a chilly 43.7°F (6.5°C). Weather in March »

Weather in April

April in Chester, Connecticut, is a fresh spring month, with an average temperature varying between 54.3°F (12.4°C) and 41.7°F (5.4°C). An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a frosty 43.7°F (6.5°C) to a cool 54.3°F (12.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Chester, Connecticut, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 50.7°F (10.4°C). Chester's weather in May shows a rise in the average high-temperature, moving up from April's cool 54.3°F (12.4°C) to a comfortable 64.9°F (18.3°C). Weather in May »

Weather in June

June, the first month of the summer in Chester, is an agreeable month, with an average temperature fluctuating between 58.8°F (14.9°C) and 73°F (22.8°C). As June begins, there's a slight increase in the average high-temperature, moving from a refreshing 64.9°F (18.3°C) in May to a pleasant 73°F (22.8°C). Weather in June »

Weather in July

July in Chester, Connecticut, is a warm summer month, with an average temperature fluctuating between 79.7°F (26.5°C) and 66.6°F (19.2°C). July stands out as Chester's warmest month, with an average high-temperature of 79.7°F (26.5°C) and a low-temperature of 66.6°F (19.2°C). Weather in July »

Weather in August

August, the last month of the summer in Chester, is also a moderately hot month, with an average temperature fluctuating between 78.6°F (25.9°C) and 65.7°F (18.7°C). As July turns into August, the average high-temperatures rest at a still moderately hot 78.6°F (25.9°C), showing a minor variation from the prior month. Weather in August »

Weather in September

September, the first month of the autumn in Chester, is also an agreeable month, with an average temperature varying between 59.5°F (15.3°C) and 72.3°F (22.4°C). September's onset introduces a mild reduction in the average high-temperature, from a moderately hot 78.6°F (25.9°C) in August to an agreeable 72.3°F (22.4°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Chester, Connecticut, with an average temperature fluctuating between 61.9°F (16.6°C) and 50.5°F (10.3°C). October's onset brings a reduction in the average high-temperature, from a pleasant 72.3°F (22.4°C) in September to a comfortable 61.9°F (16.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Chester, Connecticut, with an average temperature varying between 50.7°F (10.4°C) and 39.9°F (4.4°C). November implies a gentle temperature shift, with average high-temperatures reducing from October's comfortable 61.9°F (16.6°C) to a fresh 50.7°F (10.4°C). Weather in November »

Weather in December

December, the first month of the winter in Chester, is also a wintry month, with temperature in the range of an average high of 41.9°F (5.5°C) and an average low of 32.4°F (0.2°C). Chester in December experiences a gentle temperature dip, with average high-temperatures reducing from a cool 50.7°F (10.4°C) in November to an icy 41.9°F (5.5°C). Weather in December »

Frequently asked questions

What is the coldest month?

January is the month when Chester experiences its coldest temperatures, averaging a high of 35.2°F (1.8°C) and a low of 25.5°F (-3.6°C).

How much does it rain?

Throughout the year, there are 166.2 rainfall days, and 34.8" (884mm) of precipitation is accumulated.

When does it snow?

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

How much does it snow?

In Chester, during the entire year, snow falls for 24.2 days and aggregates up to 9.53" (242mm) of snow.

What is the month with the lowest UV index?

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

What are the months with the least sunshine in Chester?

February and December, with an average of 4.8h of sunshine, are months with the least sunshine.

When does it snow the most?

The month with the most snowfall is March, when snow falls for 4.7 days and typically aggregates up to 2.76" (70mm) of snow.

When is Daylight Saving Time (DST)?

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?

The least humid month is April, with an average relative humidity of 73%.

What is the most humid month?

The months with the highest humidity are May through July, with an average relative humidity of 78%.

When it does not snow?

June through October are months without snowfall.

When are the longest days?

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

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

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

What are the warmest months?

In Chester, July is the month with the highest recorded average temperatures, measuring a high of 79.7°F (26.5°C) and a low of 66.6°F (19.2°C).

What month has the most sunshine?

The month with the most sunshine is August, with an average of 10.6h of sunshine.

What is the driest month in Chester?

The month with the least rainfall is September, when the rain falls for 13 days and typically collects 1.93" (49mm) of precipitation.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 13 days and accumulates 3.66" (93mm) of precipitation.

What is the month with the shortest days?

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

Average temperature
Chester, CT

Average temperature - Chester, CT

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

Average pressure
Chester, CT

Average pressure - Chester, 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).

Average wind speed
Chester, CT

Average wind speed - Chester, CT

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity
Chester, CT

Average humidity - Chester, CT

The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).

Average rainfall
Chester, CT

Average rainfall - Chester, CT

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days
Chester, CT

Average rainfall days - Chester, CT

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).

Average snowfall
Chester, CT

Average snowfall - Chester, CT

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Chester, CT

Average snowfall days - Chester, CT

The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Chester, CT

Average daylight / Average sunshine - Chester, 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 month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days
Chester, CT

Average sunshine days - Chester, CT

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).

Average UV index
Chester, CT

Average UV index - Chester, 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).

Average visibility
Chester, CT

Average visibility - Chester, 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).

Chester, Connecticut, USA

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