Climate and monthly weather forecast
Marion, CT

Weather in January

January, the same as December, is a wintry winter month in Marion, Connecticut, with an average temperature varying between 33.6°F (0.9°C) and 21.9°F (-5.6°C). January is the coldest month, with an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 21.9°F (-5.6°C). Weather in January »

Weather in February

February, the last month of the winter in Marion, is also a wintry month, with an average temperature ranging between min 22.8°F (-5.1°C) and max 37°F (2.8°C). In February, the average high-temperature is almost the same as in January - a still cold 37°F (2.8°C). Weather in February »

Weather in March

March, the first month of the spring in Marion, is a frosty month, with an average temperature fluctuating between 30.2°F (-1°C) and 44.6°F (7°C). In March, the average high-temperature slightly increases from a cold 37°F (2.8°C) in February to a chilly 44.6°F (7°C). Weather in March »

Weather in April

April is a mild spring month in Marion, Connecticut, with an average temperature varying between 39.9°F (4.4°C) and 56.8°F (13.8°C). In April, the average high-temperature rises from a frosty 44.6°F (7°C) in March to a mild 56.8°F (13.8°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Marion, Connecticut, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 68.5°F (20.3°C). In Marion, the average high-temperature in May rises from a mild 56.8°F (13.8°C) in April to a pleasant 68.5°F (20.3°C). Weather in May »

Weather in June

June, the first month of the summer in Marion, is a warm month, with an average temperature varying between 76.1°F (24.5°C) and 57.4°F (14.1°C). In Marion, the average high-temperature in June slightly increases from a pleasant 68.5°F (20.3°C) in May to a moderately hot 76.1°F (24.5°C). Weather in June »

Weather in July

July, like June, in Marion, Connecticut, is another warm summer month, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 82.9°F (28.3°C). With an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 64°F (17.8°C), July is the warmest month. The average heat index in July is evaluated at a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Marion, Connecticut, with an average temperature fluctuating between 80.8°F (27.1°C) and 63°F (17.2°C). In August, the average high-temperature is almost the same as in July - a still moderately hot 80.8°F (27.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Marion, Connecticut, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 73.6°F (23.1°C). In September, the average high-temperature slightly decreases from a warm 80.8°F (27.1°C) in August to a still moderately hot 73.6°F (23.1°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Marion, Connecticut, with an average temperature fluctuating between 47.1°F (8.4°C) and 61.7°F (16.5°C). In October, the average high-temperature decreases from a moderately hot 73.6°F (23.1°C) in September to an enjoyable 61.7°F (16.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Marion, is also a frosty month, with an average temperature varying between 49.1°F (9.5°C) and 36.5°F (2.5°C). In Marion, Connecticut, the average high-temperature in November decreases from an enjoyable 61.7°F (16.5°C) in October to a frosty 49.1°F (9.5°C). Weather in November »

Weather in December

December, the first month of the winter in Marion, is still a cold month, with an average temperature varying between 39.7°F (4.3°C) and 29.1°F (-1.6°C). In December, the average high-temperature decreases from a chilly 49.1°F (9.5°C) in November to a cold 39.7°F (4.3°C). Weather in December »
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FAQ

What is the coldest month in Marion?

The coldest month in Marion, Connecticut, is January, with an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 21.9°F (-5.6°C).

How many days does it rain in Marion?

In Marion, Connecticut, during the entire year, the rain falls for 162.7 days and collects up to 34.57" (878mm) of precipitation.

When does it snow in Marion?

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

How much does it snow in Marion?

Throughout the year, in Marion, there are 30 snowfall days, and 15.28" (388mm) of snow is accumulated.

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

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

What is the most humid month in Marion?

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

What is the month with the least sunshine in Marion?

With an average of 4.5h of sunshine, February has the least sunshine of the year.

What is the snowiest month in Marion?

March is the month with the most snowfall. Snow falls for 6.5 days and accumulates 4.06" (103mm) of snow.

When is Daylight Saving Time (DST) in Marion?

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

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

When it does not snow in Marion?

June through October are months without snowfall.

When are the longest days in Marion?

With an average of 15h and 8min of daylight, June has the longest days of the year in Marion.

When is the highest UV index in Marion?

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

What is the warmest month in Marion?

The warmest month is July, with an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 64°F (17.8°C).

What month has the most sunshine in Marion?

With an average of 10.2h of sunshine, August has the most sunshine of the year.

What is the driest month in Marion?

September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.97" (50mm) of precipitation.

What is the wettest month in Marion?

The month with the most rainfall in Marion, Connecticut, is December, when the rain falls for 11.5 days and typically aggregates up to 3.82" (97mm) of precipitation.

What is the month with the shortest days in Marion?

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

Average pressure
Marion, CT

Average pressure - Marion, 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
Marion, CT

Average wind speed - Marion, CT

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average rainfall
Marion, CT

Average rainfall - Marion, CT

The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days
Marion, CT

Average rainfall days - Marion, CT

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall
Marion, CT

Average snowfall - Marion, CT

The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Marion, CT

Average snowfall days - Marion, CT

The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Marion, CT

Average daylight / Average sunshine - Marion, 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 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days
Marion, CT

Average sunshine days - Marion, CT

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index
Marion, CT

Average UV index - Marion, 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
Marion, CT

Average visibility - Marion, CT

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

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