Climate and monthly weather forecast
Mendon, MA

Weather in January

January, the same as December, is a wintry winter month in Mendon, Massachusetts, with an average temperature ranging between min 20.5°F (-6.4°C) and max 32.5°F (0.3°C). With an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 20.5°F (-6.4°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Mendon, Massachusetts, with an average temperature fluctuating between 35.8°F (2.1°C) and 21.6°F (-5.8°C). In February, the average high-temperature is relatively the same as in January - a still cold 35.8°F (2.1°C). Weather in February »

Weather in March

March, the first month of the spring in Mendon, is a frosty month, with an average temperature fluctuating between 43.3°F (6.3°C) and 28.9°F (-1.7°C). In March, the average high-temperature marginally rises from a wintry 35.8°F (2.1°C) in February to a frosty 43.3°F (6.3°C). Weather in March »

Weather in April

April in Mendon, Massachusetts, is a mild spring month, with an average temperature varying between 39°F (3.9°C) and 55.9°F (13.3°C). In Mendon, the average high-temperature in April rises from a frosty 43.3°F (6.3°C) in March to a mild 55.9°F (13.3°C). Weather in April »

Weather in May

May, the last month of the spring in Mendon, is an enjoyable month, with an average temperature ranging between max 67.3°F (19.6°C) and min 48.6°F (9.2°C). In May, the average high-temperature rises from a mild 55.9°F (13.3°C) in April to an enjoyable 67.3°F (19.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Mendon, Massachusetts, with an average temperature varying between 55.6°F (13.1°C) and 74.5°F (23.6°C). In June, the average high-temperature slightly increases from an enjoyable 67.3°F (19.6°C) in May to a warm 74.5°F (23.6°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Mendon, Massachusetts, with an average temperature ranging between min 62.6°F (17°C) and max 81.7°F (27.6°C). The warmest month is July, with an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 62.6°F (17°C). The average heat index in July is appraised at a hot 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Mendon, Massachusetts, with an average temperature ranging between max 80.1°F (26.7°C) and min 61.2°F (16.2°C). In August, the average high-temperature is relatively the same as in July - a still warm 80.1°F (26.7°C). Weather in August »

Weather in September

September, the first month of the autumn in Mendon, is also an agreeable month, with an average temperature varying between 54.5°F (12.5°C) and 72.7°F (22.6°C). In September, the average high-temperature marginally drops from a moderately hot 80.1°F (26.7°C) in August to an agreeable 72.7°F (22.6°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Mendon, Massachusetts, with temperature in the range of an average low of 45.7°F (7.6°C) and an average high of 59.9°F (15.5°C). In Mendon, the average high-temperature in October drops from an agreeable 72.7°F (22.6°C) in September to a moderate 59.9°F (15.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Mendon, is another chilly month, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 48.7°F (9.3°C). In Mendon, the average high-temperature in November drops from a moderate 59.9°F (15.5°C) in October to a frosty 48.7°F (9.3°C). Weather in November »

Weather in December

December, the first month of the winter in Mendon, is also a wintry month, with an average temperature fluctuating between 38.3°F (3.5°C) and 27.3°F (-2.6°C). In December, the average high-temperature drops from a frosty 48.7°F (9.3°C) in November to a cold 38.3°F (3.5°C). Weather in December »
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FAQ

What is the coldest month in Mendon?

With an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 20.5°F (-6.4°C), January is the coldest month.

How many days does it rain in Mendon?

In Mendon, Massachusetts, during the entire year, the rain falls for 152.2 days and collects up to 30.67" (779mm) of precipitation.

When does it snow in Mendon?

January through May, November and December are months with snowfall in Mendon.

How many days does it snow in Mendon?

In Mendon, during the entire year, snow falls for 32.5 days and aggregates up to 18.78" (477mm) of snow.

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

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 Mendon?

With an average relative humidity of 80%, February is the most humid month in Mendon.

What is the month with the least sunshine in Mendon?

The month with the least sunshine in Mendon, Massachusetts, is February, with an average of 4.6h of sunshine.

What is the snowiest month in Mendon?

March is the month with the most snowfall. Snow falls for 8.3 days and accumulates 4.92" (125mm) of snow.

When is Daylight Saving Time (DST) in Mendon?

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 Mendon?

With an average relative humidity of 71%, April is the least humid month.

When it does not snow in Mendon?

June through October are months without snowfall.

When are the longest days in Mendon?

The month with the longest days in Mendon, Massachusetts, is June, with an average of 15h and 12min of daylight.

When is the highest UV index in Mendon?

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

What is the warmest month in Mendon?

The warmest month is July, with an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 62.6°F (17°C).

What month has the most sunshine in Mendon?

With an average of 10.1h of sunshine, August has the most sunshine of the year in Mendon.

What is the driest month in Mendon?

The month with the least rainfall in Mendon is September, when the rain falls for 12.2 days and typically collects 1.54" (39mm) of precipitation.

What is the rainiest month in Mendon?

December is the month with the most rainfall in Mendon. Rain falls for 10.3 days and accumulates 3.15" (80mm) of precipitation.

What is the month with the shortest days in Mendon?

The month with the shortest days is December, with an average of 9h and 10min of daylight.

Average temperature
Mendon, MA

Average temperature - Mendon, MA

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure
Mendon, MA

Average pressure - Mendon, MA

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Mendon, MA

Average wind speed - Mendon, MA

The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average rainfall
Mendon, MA

Average rainfall - Mendon, MA

The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days
Mendon, MA

Average rainfall days - Mendon, MA

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (7.7 days).

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Average snowfall
Mendon, MA

Average snowfall - Mendon, MA

The month with the highest snowfall is March (4.92").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Mendon, MA

Average snowfall days - Mendon, MA

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Mendon, MA

Average daylight / Average sunshine - Mendon, 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 10min).

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Mendon, MA

Average sunshine days - Mendon, MA

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index
Mendon, MA

Average UV index - Mendon, 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
Mendon, MA

Average visibility - Mendon, MA

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

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