Climate and monthly weather forecast
Belmont, MA

Weather in January

January, the same as December, is a wintry winter month in Belmont, Massachusetts, with an average temperature varying between 21.7°F (-5.7°C) and 33.4°F (0.8°C). January is the coldest month, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21.7°F (-5.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Belmont, Massachusetts, with an average temperature fluctuating between 23°F (-5°C) and 36.3°F (2.4°C). In February, the average high-temperature is essentially the same as in January - a still cold 36.3°F (2.4°C). Weather in February »

Weather in March

March, the first month of the spring in Belmont, is a frosty month, with an average temperature fluctuating between 30°F (-1.1°C) and 43.3°F (6.3°C). In Belmont, Massachusetts, the average high-temperature in March slightly increases from a cold 36.3°F (2.4°C) in February to a frosty 43.3°F (6.3°C). Weather in March »

Weather in April

April is a mild spring month in Belmont, Massachusetts, with an average temperature varying between 39.7°F (4.3°C) and 55.8°F (13.2°C). In Belmont, the average high-temperature in April increases from a chilly 43.3°F (6.3°C) in March to a mild 55.8°F (13.2°C). Weather in April »

Weather in May

May, the last month of the spring in Belmont, is an enjoyable month, with an average temperature ranging between max 66.7°F (19.3°C) and min 49.6°F (9.8°C). In Belmont, the average high-temperature in May rises from a moderate 55.8°F (13.2°C) in April to an enjoyable 66.7°F (19.3°C). Weather in May »

Weather in June

June, the first month of the summer in Belmont, is a warm month, with an average temperature ranging between max 74.8°F (23.8°C) and min 57°F (13.9°C). In Belmont, the average high-temperature in June marginally rises from an enjoyable 66.7°F (19.3°C) in May to a warm 74.8°F (23.8°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Belmont, Massachusetts, with an average temperature varying between 64.4°F (18°C) and 82°F (27.8°C). July is the warmest month, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 64.4°F (18°C). The average heat index in July is evaluated at a tropical 87.3°F (30.7°C). Weather in July »

Weather in August

August, the last month of the summer in Belmont, is another warm month, with an average temperature fluctuating between 80.8°F (27.1°C) and 63.3°F (17.4°C). In Belmont, the average high-temperature in August is relatively the same as in July - a still warm 80.8°F (27.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Belmont, Massachusetts, with an average temperature fluctuating between 73°F (22.8°C) and 56.5°F (13.6°C). In Belmont, Massachusetts, the average high-temperature in September slightly decreases from a moderately hot 80.8°F (27.1°C) in August to an agreeable 73°F (22.8°C). Weather in September »

Weather in October

October, like September, in Belmont, Massachusetts, is another enjoyable autumn month, with an average temperature fluctuating between 47.3°F (8.5°C) and 60.8°F (16°C). In Belmont, the average high-temperature in October drops from a pleasant 73°F (22.8°C) in September to a comfortable 60.8°F (16°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Belmont, Massachusetts, with an average temperature fluctuating between 49.1°F (9.5°C) and 36.9°F (2.7°C). In November, the average high-temperature drops from a comfortable 60.8°F (16°C) in October to a frosty 49.1°F (9.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Belmont, Massachusetts, with an average temperature fluctuating between 39°F (3.9°C) and 29.1°F (-1.6°C). In Belmont, the average high-temperature in December decreases from a frosty 49.1°F (9.5°C) in November to a wintry 39°F (3.9°C). Weather in December »
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FAQ

What is the coldest month in Belmont?

With an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21.7°F (-5.7°C), January is the coldest month.

How much does it rain in Belmont?

Throughout the year, in Belmont, Massachusetts, there are 142.8 rainfall days, and 27.36" (695mm) of precipitation is accumulated.

When does it snow in Belmont?

Months with snowfall are January through May, October through December.

How much does it snow in Belmont?

Throughout the year, there are 29.6 snowfall days, and 17.8" (452mm) of snow is accumulated.

When is the lowest UV index in Belmont?

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

What is the most humid month in Belmont?

The most humid month in Belmont, Massachusetts, is February, with an average relative humidity of 78%.

What is the snowiest month in Belmont?

February is the month with the most snowfall in Belmont. Snow falls for 6.8 days and accumulates 4.72" (120mm) of snow.

What is the month with the least sunshine in Belmont?

February has the least sunshine of the year in Belmont, Massachusetts, with an average of 4.7h of sunshine.

When is Daylight Saving Time (DST) in Belmont?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Belmont?

The least humid month is April, with an average relative humidity of 70%.

When it does not snow in Belmont?

June through September are months without snowfall in Belmont, Massachusetts.

When are the longest days in Belmont?

June has the longest days of the year in Belmont, Massachusetts, with an average of 15h and 14min of daylight.

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

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

What is the warmest month in Belmont?

With an average high-temperature of 82°F (27.8°C) and an average low-temperature of 64.4°F (18°C), July is the warmest month.

What month has the most sunshine in Belmont?

August has the most sunshine of the year, with an average of 10.5h of sunshine.

What is the driest month in Belmont?

September is the month with the least rainfall. Rain falls for 10.7 days and accumulates 1.3" (33mm) of precipitation.

What is the rainiest month in Belmont?

The month with the most rainfall is December, when the rain falls for 9.5 days and typically aggregates up to 2.95" (75mm) of precipitation.

What is the month with the shortest days in Belmont?

With an average of 9h and 8min of daylight, December has the shortest days of the year.

Average pressure
Belmont, MA

Average pressure - Belmont, MA

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Belmont, MA

Average wind speed - Belmont, MA

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average rainfall
Belmont, MA

Average rainfall - Belmont, MA

The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days
Belmont, MA

Average rainfall days - Belmont, MA

The months with the highest number of rainy days are May and July (15.3 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall
Belmont, MA

Average snowfall - Belmont, MA

The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Belmont, MA

Average snowfall days - Belmont, MA

The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Belmont, MA

Average daylight / Average sunshine - Belmont, MA

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days
Belmont, MA

Average sunshine days - Belmont, MA

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is April (13.3 days).

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Average UV index
Belmont, MA

Average UV index - Belmont, MA

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
Belmont, MA

Average visibility - Belmont, MA

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

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