Climate and monthly weather forecast
Cohasset, MA

Weather in January

January, the same as December, is another cold winter month in Cohasset, Massachusetts, with an average temperature fluctuating between 34.5°F (1.4°C) and 24.3°F (-4.3°C). January is the coldest month, with an average high-temperature of 34.5°F (1.4°C) and an average low-temperature of 24.3°F (-4.3°C). Weather in January »

Weather in February

February, the last month of the winter in Cohasset, is another cold month, with an average temperature fluctuating between 37.2°F (2.9°C) and 25.3°F (-3.7°C). In Cohasset, Massachusetts, the average high-temperature in February is relatively the same as in January - a still wintry 37.2°F (2.9°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Cohasset, Massachusetts, with an average temperature ranging between max 43°F (6.1°C) and min 31.6°F (-0.2°C). In March, the average high-temperature slightly increases from a cold 37.2°F (2.9°C) in February to a chilly 43°F (6.1°C). Weather in March »

Weather in April

April in Cohasset, Massachusetts, is a fresh spring month, with an average temperature ranging between min 40.6°F (4.8°C) and max 53.8°F (12.1°C). In April, the average high-temperature increases from a frosty 43°F (6.1°C) in March to a cool 53.8°F (12.1°C). Weather in April »

Weather in May

May, the last month of the spring in Cohasset, 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 63.9°F (17.7°C). In May, the average high-temperature increases from a fresh 53.8°F (12.1°C) in April to an enjoyable 63.9°F (17.7°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Cohasset, Massachusetts, with temperature in the range of an average low of 57.6°F (14.2°C) and an average high of 71.8°F (22.1°C). In June, the average high-temperature slightly increases from a comfortable 63.9°F (17.7°C) in May to an agreeable 71.8°F (22.1°C). Weather in June »

Weather in July

July is a moderately hot summer month in Cohasset, Massachusetts, with an average temperature varying between 64.9°F (18.3°C) and 79.3°F (26.3°C). With an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 64.9°F (18.3°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Cohasset, is also a moderately hot month, with an average temperature ranging between min 64.2°F (17.9°C) and max 78.4°F (25.8°C). In August, the average high-temperature is almost the same as in July - a still moderately hot 78.4°F (25.8°C). Weather in August »

Weather in September

September, the first month of the autumn in Cohasset, is still a pleasant month, with an average temperature ranging between max 71.4°F (21.9°C) and min 58.1°F (14.5°C). In September, the average high-temperature slightly decreases from a moderately hot 78.4°F (25.8°C) in August to an agreeable 71.4°F (21.9°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Cohasset, Massachusetts, with an average temperature fluctuating between 60.4°F (15.8°C) and 49.3°F (9.6°C). In Cohasset, the average high-temperature in October decreases from an agreeable 71.4°F (21.9°C) in September to a mild 60.4°F (15.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Cohasset, Massachusetts, with an average temperature ranging between max 49.6°F (9.8°C) and min 39.2°F (4°C). In Cohasset, the average high-temperature in November drops from a moderate 60.4°F (15.8°C) in October to a frosty 49.6°F (9.8°C). Weather in November »

Weather in December

December, the first month of the winter in Cohasset, is still a cold month, with an average temperature varying between 40.3°F (4.6°C) and 31.1°F (-0.5°C). In Cohasset, the average high-temperature in December decreases from a chilly 49.6°F (9.8°C) in November to a wintry 40.3°F (4.6°C). Weather in December »
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FAQ

What is the coldest month in Cohasset?

January is the coldest month in Cohasset, with an average high-temperature of 34.5°F (1.4°C) and an average low-temperature of 24.3°F (-4.3°C).

How much does it rain in Cohasset?

Throughout the year, there are 152 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

When does it snow in Cohasset?

Months with snowfall in Cohasset are January through April, November and December.

How many days does it snow in Cohasset?

In Cohasset, Massachusetts, during the entire year, snow falls for 28 days and aggregates up to 12.48" (317mm) of snow.

When is the lowest UV index in Cohasset?

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

What are the most humid months in Cohasset?

February, June and September, with an average relative humidity of 77%, are most humid months in Cohasset, Massachusetts.

What is the snowiest month in Cohasset?

February is the month with the most snowfall. Snow falls for 6.8 days and accumulates 3.86" (98mm) of snow.

What is the month with the least sunshine in Cohasset?

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

When is Daylight Saving Time (DST) in Cohasset?

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 Cohasset?

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

When it does not snow in Cohasset?

May through October are months without snowfall.

When are the longest days in Cohasset?

June has the longest days of the year in Cohasset, with an average of 15h and 13min of daylight.

What is the warmest month in Cohasset?

The warmest month in Cohasset is July, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 64.9°F (18.3°C).

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

July and August, with an average maximum UV index of 6, are months with the highest UV index in Cohasset.

What month has the most sunshine in Cohasset?

With an average of 10.6h of sunshine, August has the most sunshine of the year in Cohasset, Massachusetts.

What is the driest month in Cohasset?

September is the month with the least rainfall in Cohasset, Massachusetts. Rain falls for 11.7 days and accumulates 1.5" (38mm) of precipitation.

What is the rainiest month in Cohasset?

The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.11" (79mm) of precipitation.

What is the month with the shortest days in Cohasset?

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

Average temperature
Cohasset, MA

Average temperature - Cohasset, MA

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (34.5°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 (24.3°F).

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Average pressure
Cohasset, MA

Average pressure - Cohasset, MA

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Cohasset, MA

Average wind speed - Cohasset, MA

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

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Average humidity
Cohasset, MA

Average humidity - Cohasset, MA

The months with the highest relative humidity are February, June and September (77%).
The month with the lowest relative humidity is April (72%).

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Average rainfall
Cohasset, MA

Average rainfall - Cohasset, MA

The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days
Cohasset, MA

Average rainfall days - Cohasset, MA

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (8.6 days).

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Average snowfall
Cohasset, MA

Average snowfall - Cohasset, MA

The month with the highest snowfall is February (3.86").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Cohasset, MA

Average snowfall days - Cohasset, MA

The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Cohasset, MA

Average daylight / Average sunshine - Cohasset, MA

The month with the longest days is June (Average daylight: 15h and 12min).
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).

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Average sunshine days
Cohasset, MA

Average sunshine days - Cohasset, MA

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index
Cohasset, MA

Average UV index - Cohasset, MA

The months with the highest UV index are 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
Cohasset, MA

Average visibility - Cohasset, MA

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).

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