Climate and monthly weather forecast
Lexington, MA

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Weather in January

January, the same as December, is another cold winter month in Lexington, Massachusetts, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 32.9°F (0.5°C). Lexington's January weather, marked by an average high temperature of 32.9°F (0.5°C) and an average low temperature of 21.6°F (-5.8°C), is the coldest in the year. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Lexington, Massachusetts, with temperature in the range of an average high of 35.8°F (2.1°C) and an average low of 21.9°F (-5.6°C). With the onset of February, the average high-temperature stands at a still icy 35.8°F (2.1°C), closely aligned with January's 32.9°F (0.5°C). Weather in February »

Weather in March

March, the first month of the spring in Lexington, is a chilly month, with an average temperature fluctuating between 43°F (6.1°C) and 29.1°F (-1.6°C). As Lexington, Massachusetts, enters March, the average high-temperature marginally increases from the an icy 35.8°F (2.1°C) of February to a frosty 43°F (6.1°C). Weather in March »

Weather in April

April is a moderate spring month in Lexington, Massachusetts, with temperature in the range of an average low of 39.6°F (4.2°C) and an average high of 55.9°F (13.3°C). Lexington sees a rise in temperature during April, with average high-temperatures transitioning from a frosty 43°F (6.1°C) in March to a moderate 55.9°F (13.3°C). Weather in April »

Weather in May

May, the last month of the spring in Lexington, is a comfortable month, with an average temperature ranging between max 66.9°F (19.4°C) and min 49.1°F (9.5°C). The commencement of May sees a shift in the average high-temperature, moving from a moderate 55.9°F (13.3°C) in April to a still refreshing 66.9°F (19.4°C). Weather in May »

Weather in June

June, the first month of the summer in Lexington, is a moderately hot month, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 56.8°F (13.8°C). The arrival of June signals a slight increase in the average high-temperature, moving from a comfortable 66.9°F (19.4°C) in May to a moderately hot 75.4°F (24.1°C). Weather in June »

Weather in July

July, like June, in Lexington, Massachusetts, is a moderately hot summer month, with an average temperature fluctuating between 63.9°F (17.7°C) and 82°F (27.8°C). July stands out as Lexington's warmest month, with temperatures ranging between an average high of 82°F (27.8°C) and a low of 63.9°F (17.7°C). July's heat index is computed to be a tropical 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Lexington, Massachusetts, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 81°F (27.2°C). The average high-temperature for August is a still warm 81°F (27.2°C), closely aligning with the temperature of the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Lexington, is also an agreeable month, with temperature in the range of an average high of 72.9°F (22.7°C) and an average low of 56.3°F (13.5°C). In September, the average high-temperature marginally drops from a moderately hot 81°F (27.2°C) in August to a pleasant 72.9°F (22.7°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Lexington, Massachusetts, with an average temperature varying between 46.8°F (8.2°C) and 60.3°F (15.7°C). Lexington in October undergoes a mild reduction in the average high-temperature, shifting from September's pleasant 72.9°F (22.7°C) to a moderate 60.3°F (15.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Lexington, is also a frosty month, with an average temperature ranging between min 36.1°F (2.3°C) and max 49.1°F (9.5°C). In November, the average high-temperature goes from a refreshing 60.3°F (15.7°C) in October to a chilly 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 Lexington, Massachusetts, with an average temperature fluctuating between 38.5°F (3.6°C) and 28.2°F (-2.1°C). December weather is marked by a drop in the average high-temperature, falling from a frosty 49.1°F (9.5°C) in November to an icy 38.5°F (3.6°C). Weather in December »
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Frequently asked questions

What are the coldest months in Lexington?

January, having an average high-temperature of 32.9°F (0.5°C) and an average low-temperature of 21.6°F (-5.8°C), is the coldest month in Lexington.

How much does it rain in Lexington?

Throughout the year, there are 143.4 rainfall days, and 27.52" (699mm) of precipitation is accumulated.

When does it snow in Lexington?

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

How much does it snow in Lexington?

In Lexington, Massachusetts, during the entire year, snow falls for 31.2 days and aggregates up to 19.88" (505mm) of snow.

What is the most humid month in Lexington?

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

What is the snowiest month in Lexington?

The month with the most snowfall in Lexington, Massachusetts, is February, when snow falls for 7.7 days and typically aggregates up to 5.35" (136mm) of snow.

What is the month with the least sunshine in Lexington?

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

When is Daylight Saving Time (DST) in Lexington?

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 in Lexington?

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

When it does not snow in Lexington?

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

When are the longest days in Lexington?

June has the longest days of the year in Lexington, with an average of 15h and 12min of daylight.

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

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

What month is the hottest in Lexington?

In Lexington, July records the average highest temperatures, peaking at 82°F (27.8°C) and reaching a low of 63.9°F (17.7°C).

What month has the most sunshine in Lexington?

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

What is the driest month in Lexington?

The month with the least rainfall is September, when the rain falls for 10.9 days and typically collects 1.38" (35mm) of precipitation.

What is the wettest month in Lexington?

December is the month with the most rainfall in Lexington, Massachusetts. Rain falls for 9.9 days and accumulates 2.91" (74mm) of precipitation.

What is the month with the shortest days in Lexington?

December has the shortest days of the year in Lexington, Massachusetts, with an average of 9h and 6min of daylight.

When is the lowest UV index in Lexington?

December is the month with the lowest UV index, with an average maximum UV index of 1.

Average temperature
Lexington, MA

Average temperature - Lexington, MA

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure
Lexington, MA

Average pressure - Lexington, 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
Lexington, MA

Average wind speed - Lexington, MA

The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average rainfall
Lexington, MA

Average rainfall - Lexington, MA

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.38").

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Average rainfall days
Lexington, MA

Average rainfall days - Lexington, MA

The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall
Lexington, MA

Average snowfall - Lexington, MA

The month with the highest snowfall is February (5.35").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Lexington, MA

Average snowfall days - Lexington, MA

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Lexington, MA

Average daylight / Average sunshine - Lexington, 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 6min).

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 36min).

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Average sunshine days
Lexington, MA

Average sunshine days - Lexington, MA

The months with the most sunshine days are January and November (17.5 days).
The month with the least sunshine days is July (13.8 days).

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Average visibility
Lexington, MA

Average visibility - Lexington, 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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Lexington, Massachusetts, USA

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