Climate and monthly weather forecast
Cohasset, MA

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Weather in January

January, the same as December, is another cold winter month in Cohasset, Massachusetts, with temperature in the range of an average high of 34.5°F (1.4°C) and an average low of 24.3°F (-4.3°C). January is the month that records the lowest temperatures, with averages ranging from a high of 34.5°F (1.4°C) to a low of 24.3°F (-4.3°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Cohasset, Massachusetts, with an average temperature varying between 25.3°F (-3.7°C) and 37.2°F (2.9°C). With the transition into February, Cohasset notes an average high-temperature of a still icy 37.2°F (2.9°C), closely resembling January. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Cohasset, Massachusetts, with an average temperature varying between 31.6°F (-0.2°C) and 43°F (6.1°C). March's arrival coincides with a marginal rise in the average high-temperature, moving from February's icy 37.2°F (2.9°C) to a chilly 43°F (6.1°C). Weather in March »

Weather in April

April is a cool spring month in Cohasset, Massachusetts, with temperature in the range of an average high of 53.8°F (12.1°C) and an average low of 40.6°F (4.8°C). Cohasset's April weather brings a rise in high-temperatures, moving 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

The last month of the spring, May, is an enjoyable month in Cohasset, Massachusetts, with an average temperature ranging between min 50.2°F (10.1°C) and max 63.9°F (17.7°C). As Cohasset transitions into May, the average high-temperature is observed to rise from a cool 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). Entering June, Cohasset notices a subtle temperature elevation, with the average high-temperature advancing from May's refreshing 63.9°F (17.7°C) to a pleasant 71.8°F (22.1°C). Weather in June »

Weather in July

July in Cohasset, Massachusetts, is a warm summer month, with an average temperature fluctuating between 79.3°F (26.3°C) and 64.9°F (18.3°C). Cohasset's warmest temperatures are experienced in July, with average high temperatures of 79.3°F (26.3°C) and lows of 64.9°F (18.3°C). Weather in July »

Weather in August

August, the last month of the summer in Cohasset, is another warm month, with an average temperature fluctuating between 64.2°F (17.9°C) and 78.4°F (25.8°C). With the advent of August, Cohasset experiences an average high-temperature of a still moderately hot 78.4°F (25.8°C), mirroring a close resemblance to the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Cohasset, is still a pleasant month, with an average temperature varying between 58.1°F (14.5°C) and 71.4°F (21.9°C). Cohasset records a mild change in average high-temperature during September, easing from a moderately hot 78.4°F (25.8°C) in August to a pleasant 71.4°F (21.9°C). Weather in September »

Weather in October

October, the same as September, in Cohasset, Massachusetts, is another refreshing autumn month, with an average temperature ranging between max 60.4°F (15.8°C) and min 49.3°F (9.6°C). Stepping into October, Cohasset observes a temperature decline, with the average high falling from September's agreeable 71.4°F (21.9°C) to a refreshing 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 temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 39.2°F (4°C). During Cohasset's transition into November, the average high-temperature lessens, moving from a moderate 60.4°F (15.8°C) in October to a chilly 49.6°F (9.8°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Cohasset, Massachusetts, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 40.3°F (4.6°C). December ushers in a slight temperature change, with average high-temperatures reducing from November's chilly 49.6°F (9.8°C) to a wintry 40.3°F (4.6°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Cohasset?

January, recording an average high temperature of 34.5°F (1.4°C) and a low temperature of 24.3°F (-4.3°C), is Cohasset's coldest month.

How much does it rain in Cohasset?

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

When does it snow in Cohasset?

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

How many days does it snow in Cohasset?

Throughout the year, in Cohasset, there are 28 snowfall days, and 12.48" (317mm) of snow is accumulated.

When is the lowest UV index in Cohasset?

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

What are the most humid months in Cohasset?

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

What is the snowiest month in Cohasset?

The month with the most snowfall in Cohasset is February, when snow falls for 6.8 days and typically aggregates up to 3.86" (98mm) of snow.

What is the month with the least sunshine in Cohasset?

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

When is Daylight Saving Time (DST) in Cohasset?

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

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

When it does not snow in Cohasset?

In Cohasset, Massachusetts, snow does not fall in May through October.

When are the longest days in Cohasset?

With an average of 15h and 12min of daylight, June has the longest days of the year in Cohasset, Massachusetts.

What time of the year is the hottest in Cohasset?

July is the month when Cohasset's temperatures reach their peak, with averages of 79.3°F (26.3°C) and lows 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.

What is the driest month in Cohasset?

The month with the least rainfall is September, when the rain falls for 11.7 days and typically collects 1.5" (38mm) of precipitation.

What is the rainiest month in Cohasset?

December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 3.11" (79mm) of precipitation.

What is the month with the shortest days in Cohasset?

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

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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Cohasset, Massachusetts, USA

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