Climate and monthly weather forecast
Sterling, MA

Weather in January

January, the same as December, in Sterling, Massachusetts, is another subzero cold winter month, with an average temperature fluctuating between 19.8°F (-6.8°C) and 31.5°F (-0.3°C). With an average high-temperature of 31.5°F (-0.3°C) and an average low-temperature of 19.8°F (-6.8°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is a wintry month in Sterling, Massachusetts, with an average temperature fluctuating between 34.7°F (1.5°C) and 20.1°F (-6.6°C). In Sterling, the average high-temperature in February is relatively the same as in January - a wintry 34.7°F (1.5°C). Weather in February »

Weather in March

The first month of the spring, March, is still a cold month in Sterling, Massachusetts, with an average temperature varying between 42.4°F (5.8°C) and 27.9°F (-2.3°C). In Sterling, the average high-temperature in March slightly increases from a cold 34.7°F (1.5°C) in February to a still wintry 42.4°F (5.8°C). Weather in March »

Weather in April

April in Sterling, Massachusetts, is a mild spring month, with temperature in the range of an average low of 38.1°F (3.4°C) and an average high of 55.6°F (13.1°C). In Sterling, the average high-temperature in April increases from a wintry 42.4°F (5.8°C) in March to a moderate 55.6°F (13.1°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Sterling, Massachusetts, with temperature in the range of an average high of 67.5°F (19.7°C) and an average low of 47.8°F (8.8°C). In Sterling, Massachusetts, the average high-temperature in May increases from a mild 55.6°F (13.1°C) in April to an enjoyable 67.5°F (19.7°C). Weather in May »

Weather in June

June, the first month of the summer in Sterling, is a warm month, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 55.4°F (13°C). In June, the average high-temperature slightly increases from a comfortable 67.5°F (19.7°C) in May to a moderately hot 75.2°F (24°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Sterling, Massachusetts, with an average temperature varying between 81.9°F (27.7°C) and 62.2°F (16.8°C). July is the warmest month, with an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 62.2°F (16.8°C). The average heat index in July is estimated at a tropical 87.3°F (30.7°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Sterling, Massachusetts, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 80.1°F (26.7°C). In Sterling, the average high-temperature in August is relatively the same as in July - a still moderately hot 80.1°F (26.7°C). Weather in August »

Weather in September

September, the first month of the autumn in Sterling, is still a pleasant month, with an average temperature ranging between min 54°F (12.2°C) and max 72.5°F (22.5°C). In September, the average high-temperature slightly decreases from a warm 80.1°F (26.7°C) in August to an agreeable 72.5°F (22.5°C). Weather in September »

Weather in October

October, the same as September, in Sterling, Massachusetts, is another mild autumn month, with an average temperature ranging between max 59.7°F (15.4°C) and min 45°F (7.2°C). In October, the average high-temperature drops from an agreeable 72.5°F (22.5°C) in September to a moderate 59.7°F (15.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Sterling, Massachusetts, with an average temperature ranging between max 47.3°F (8.5°C) and min 34.3°F (1.3°C). In November, the average high-temperature drops from a mild 59.7°F (15.4°C) in October to a chilly 47.3°F (8.5°C). Weather in November »

Weather in December

December, the first month of the winter in Sterling, is still a cold month, with an average temperature fluctuating between 26.6°F (-3°C) and 37.4°F (3°C). In Sterling, the average high-temperature in December decreases from a chilly 47.3°F (8.5°C) in November to a cold 37.4°F (3°C). Weather in December »
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FAQ

What is the coldest month in Sterling?

With an average high-temperature of 31.5°F (-0.3°C) and an average low-temperature of 19.8°F (-6.8°C), January is the coldest month.

How much does it rain in Sterling?

Throughout the year, in Sterling, Massachusetts, there are 150.4 rainfall days, and 28.86" (733mm) of precipitation is accumulated.

When does it snow in Sterling?

January through May, October through December are months with snowfall in Sterling, Massachusetts.

How many days does it snow in Sterling?

Throughout the year, there are 36.5 snowfall days, and 23.82" (605mm) of snow is accumulated.

What is the month with the lowest UV index in Sterling?

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

What is the most humid month in Sterling?

February is the most humid month, with an average relative humidity of 81%.

When does it snow the most in Sterling?

February is the month with the most snowfall in Sterling. Snow falls for 9.4 days and accumulates 6.1" (155mm) of snow.

What is the month with the least sunshine in Sterling?

With an average of 4.6h of sunshine, February has the least sunshine of the year in Sterling.

When is Daylight Saving Time (DST) in Sterling?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Sterling, Massachusetts, 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 Sterling?

April is the least humid month in Sterling, Massachusetts, with an average relative humidity of 71%.

When it does not snow in Sterling?

June through September are months without snowfall in Sterling.

When are the longest days in Sterling?

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

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

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

What is the warmest month in Sterling?

With an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 62.2°F (16.8°C), July is the warmest month in Sterling.

What month has the most sunshine in Sterling?

The month with the most sunshine in Sterling, Massachusetts, is August, with an average of 10.2h of sunshine.

What is the driest month in Sterling?

September is the month with the least rainfall. Rain falls for 12.3 days and accumulates 1.57" (40mm) of precipitation.

What is the rainiest month in Sterling?

The month with the most rainfall is December, when the rain falls for 10.7 days and typically aggregates up to 2.91" (74mm) of precipitation.

What is the month with the shortest days in Sterling?

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

Average temperature
Sterling, MA

Average temperature - Sterling, MA

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (31.5°F).

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure
Sterling, MA

Average pressure - Sterling, 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
Sterling, MA

Average wind speed - Sterling, MA

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average rainfall
Sterling, MA

Average rainfall - Sterling, MA

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days
Sterling, MA

Average rainfall days - Sterling, MA

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall
Sterling, MA

Average snowfall - Sterling, MA

The month with the highest snowfall is February (6.1").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Sterling, MA

Average snowfall days - Sterling, MA

The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Sterling, MA

Average daylight / Average sunshine - Sterling, 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: 10.2h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days
Sterling, MA

Average sunshine days - Sterling, MA

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index
Sterling, MA

Average UV index - Sterling, 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
Sterling, MA

Average visibility - Sterling, MA

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

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