Climate and monthly weather forecast
Marion, CT

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Weather in January

January, the same as December, is an icy 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 month when Marion, Connecticut, experiences its coldest temperatures, averaging a high of 33.6°F (0.9°C) and a low of 21.9°F (-5.6°C). Weather in January »

Weather in February

February, the last month of the winter in Marion, is also an icy month, with an average temperature varying between 22.8°F (-5.1°C) and 37°F (2.8°C). The advent of February reveals an average high-temperature of a still cold 37°F (2.8°C), showing minimal difference from the prior month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Marion, Connecticut, with an average temperature fluctuating between 44.6°F (7°C) and 30.2°F (-1°C). Marion's weather in March presents a minor rise in the average high-temperature, moving from a wintry 37°F (2.8°C) in February to a frosty 44.6°F (7°C). Weather in March »

Weather in April

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

Weather in May

May, the last month of the spring in Marion, is a pleasant month, 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). May's arrival brings a temperature shift, moving from a mild 56.8°F (13.8°C) in April to an agreeable 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 fluctuating between 57.4°F (14.1°C) and 76.1°F (24.5°C). With the onset of June, Marion's weather sees a minor temperature rise, transitioning from a pleasant 68.5°F (20.3°C) in May to a warm 76.1°F (24.5°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Marion, Connecticut, with an average temperature ranging between max 82.9°F (28.3°C) and min 64°F (17.8°C). Marion notes the warmest temperatures in July, with a high average of 82.9°F (28.3°C) and a low of 64°F (17.8°C). Throughout July, the heat index is evaluated at a tropical 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Marion, is another warm month, with an average temperature ranging between max 80.8°F (27.1°C) and min 63°F (17.2°C). August's onset records a minor alteration in the average high-temperature to a still warm 80.8°F (27.1°C) from July's 82.9°F (28.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Marion, Connecticut, with an average temperature varying between 56.3°F (13.5°C) and 73.6°F (23.1°C). September sees a slight reduction in average high-temperature, with a shift from 80.8°F (27.1°C) in August to a still warm 73.6°F (23.1°C). Weather in September »

Weather in October

October, like September, in Marion, Connecticut, is another enjoyable autumn month, with an average temperature ranging between min 47.1°F (8.4°C) and max 61.7°F (16.5°C). Marion's progression into October involves a drop in the average high-temperature, receding from a warm 73.6°F (23.1°C) in September to a comfortable 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Marion, Connecticut, with an average temperature ranging between max 49.1°F (9.5°C) and min 36.5°F (2.5°C). With November's onset, the average high-temperature recedes from October's comfortable 61.7°F (16.5°C) 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 Marion, Connecticut, with temperature in the range of an average low of 29.1°F (-1.6°C) and an average high of 39.7°F (4.3°C). Marion's December weather shows a moderate shift in high-temperatures, falling from November's frosty 49.1°F (9.5°C) to a cold 39.7°F (4.3°C). Weather in December »
Updated: Feb 10, 2024 | Published by: Weather U.S. | About Us

Frequently asked questions

What part of the year is the coldest in Marion?

During the coldest month in Marion, January, temperatures average a high of 33.6°F (0.9°C) and a low of 21.9°F (-5.6°C).

How many days does it rain in Marion?

Throughout the year, in Marion, there are 162.7 rainfall days, and 34.57" (878mm) of precipitation is accumulated.

When does it snow in Marion?

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

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 is the month 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?

February is the most humid month, with an average relative humidity of 79%.

What is the month with the least sunshine in Marion?

The month with the least sunshine is February, with an average of 4.5h of sunshine.

When does it snow the most in Marion?

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

When is Daylight Saving Time (DST) in Marion?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Marion, Connecticut, 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 in Marion?

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

When it does not snow in Marion?

June through October are months without snowfall in Marion, Connecticut.

When are the longest days in Marion?

With an average of 15h and 6min of daylight, June has the longest days of the year.

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

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

What is the hottest time of year in Marion?

In Marion, Connecticut, the average temperatures in July are the highest, with a peak at 82.9°F (28.3°C) and a low of 64°F (17.8°C).

What month has the most sunshine in Marion?

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

What is the driest month in Marion?

September is the month with the least rainfall in Marion, Connecticut. 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 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?

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

Average temperature
Marion, CT

Average temperature - Marion, CT

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.6°F).

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

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).

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).

Average humidity
Marion, CT

Average humidity - Marion, CT

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

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").

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).

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").

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).

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).

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).

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).

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).

Marion, Connecticut, USA

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