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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Cohasset, Massachusetts, with an average temperature fluctuating between 24.3°F (-4.3°C) and 34.5°F (1.4°C). January, on average, is the coldest month, registering a high temperature of 34.5°F (1.4°C) and a low of 24.3°F (-4.3°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Cohasset, Massachusetts, with an average temperature fluctuating between 37.2°F (2.9°C) and 25.3°F (-3.7°C). February's weather records an average high-temperature of a still wintry 37.2°F (2.9°C), showing little deviation from January. Weather in February »
Weather in March
March, the first month of the spring in Cohasset, is a frosty month, with an average temperature fluctuating between 43°F (6.1°C) and 31.6°F (-0.2°C). With the onset of March, Cohasset's weather sees a minor temperature rise, transitioning from a cold 37.2°F (2.9°C) in February to a frosty 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 low of 40.6°F (4.8°C) and an average high of 53.8°F (12.1°C). The onset of April brings a temperature shift, with the average high-temperature moving from a frosty 43°F (6.1°C) in March to a fresh 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 an average temperature fluctuating between 50.2°F (10.1°C) and 63.9°F (17.7°C). With the arrival of May, the average high-temperature transitions from a cool 53.8°F (12.1°C) in April to a refreshing 63.9°F (17.7°C). Weather in May »
Weather in June
June, the first month of the summer in Cohasset, is an agreeable month, with temperature in the range of an average high of 71.8°F (22.1°C) and an average low of 57.6°F (14.2°C). June brings a slight elevation in the average high-temperature, transitioning from May's enjoyable 63.9°F (17.7°C) to an agreeable 71.8°F (22.1°C). Weather in June »
Weather in July
July in Cohasset, Massachusetts, is a moderately hot summer month, with an average temperature varying between 64.9°F (18.3°C) and 79.3°F (26.3°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 varying between 78.4°F (25.8°C) and 64.2°F (17.9°C). August's advent presents an average high-temperature of a still moderately hot 78.4°F (25.8°C), indicating a slight variation from the conditions of the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Cohasset, is also an agreeable month, with temperature in the range of an average high of 71.4°F (21.9°C) and an average low of 58.1°F (14.5°C). The onset of September is marked by a minor decrease in temperature, transitioning 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, like September, is a moderate autumn month in Cohasset, Massachusetts, with an average temperature ranging between min 49.3°F (9.6°C) and max 60.4°F (15.8°C). Onset of October witnesses a reduction in the average high-temperature, falling from a pleasant 71.4°F (21.9°C) in September to a refreshing 60.4°F (15.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Cohasset, is another chilly month, with an average temperature varying between 49.6°F (9.8°C) and 39.2°F (4°C). As November arrives, Cohasset's weather displays a decrease in high-temperatures, transitioning from October's moderate 60.4°F (15.8°C) to a chilly 49.6°F (9.8°C). Weather in November »
Weather in December
December, the first month of the winter in Cohasset, is also a wintry month, 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 brings a minor decrease, with the average high-temperature reducing from a chilly 49.6°F (9.8°C) in November to an icy 40.3°F (4.6°C). Weather in December »
Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
In Cohasset, the lowest temperatures are generally noted in January, averaging a high of 34.5°F (1.4°C) and a low of 24.3°F (-4.3°C).
How much does it rain?
In Cohasset, during the entire year, the rain falls for 152 days and collects up to 29.09" (739mm) of precipitation.
When does it snow?
Months with snowfall are January through April, November and December.
How much does it snow?
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?
The months with the lowest UV index in Cohasset are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month?
February, June and September, with an average relative humidity of 77%, are most humid months.
When does it snow the most?
The month with the most snowfall 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?
February and December, with an average of 4.8h of sunshine, are months with the least sunshine.
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?
April is the least humid month, with an average relative humidity of 72%.
When it does not snow?
In Cohasset, snow does not fall in May through October.
When are the longest days?
The month with the longest days in Cohasset is June, with an average of 15h and 12min of daylight.
What time of the year is the hottest?
In Cohasset, the peak temperatures are generally noted in July, averaging a high of 79.3°F (26.3°C) and a low of 64.9°F (18.3°C).
When is the highest UV index?
The months with the highest UV index are July and August, with an average maximum UV index of 6.
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?
The month with the least rainfall in Cohasset is September, when the rain falls for 11.7 days and typically collects 1.5" (38mm) of precipitation.
What is the rainiest month?
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?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
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).
Average pressure
Cohasset, MA
- Average pressure in January:
30"Hg - Average pressure in February:
29.98"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Cohasset, MA
- Average wind speed in January:
11.1mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.6mph - Average wind speed in April:
9.6mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
7mph - Average wind speed in August:
6.9mph - Average wind speed in September:
7.7mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.9mph - Average wind speed in December:
10.5mph
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).
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%).
Average rainfall
Cohasset, MA
- Average rainfall in January:
2.4" - Average rainfall in February:
2.36" - Average rainfall in March:
2.91" - Average rainfall in April:
3.07" - Average rainfall in May:
2.05" - Average rainfall in June:
2.2"
- Average rainfall in July:
2.32" - Average rainfall in August:
1.77" - Average rainfall in September:
1.5" - Average rainfall in October:
2.72" - Average rainfall in November:
2.68" - Average rainfall in December:
3.11"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days
Cohasset, MA
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
13 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
11.5 days
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).
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").
Average snowfall days
Cohasset, MA
- Average snowfall days in January:
8 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
6.1 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
4.8 days
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).
Average daylight / Average sunshine
Cohasset, MA
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 4min - Average sunshine in September:
8h and 3min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 5min
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
Cohasset, MA
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
13.9 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
13.8 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
15.2 days - Average sunshine days in November:
17 days - Average sunshine days in December:
15.7 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (12.8 days).
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).
Average cloud cover
Cohasset, MA
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).
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).