Climate and monthly weather forecast
Lebanon, CT

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Weather in January

January, like December, in Lebanon, Connecticut, is another cold winter month, with an average temperature fluctuating between 21.6°F (-5.8°C) and 33.4°F (0.8°C). January, with its high-temperature average of 33.4°F (0.8°C) and a low-temperature average of 21.6°F (-5.8°C), is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Lebanon, is another cold month, with an average temperature varying between 36.7°F (2.6°C) and 22.5°F (-5.3°C). Lebanon, Connecticut, records an average high-temperature of a still wintry 36.7°F (2.6°C) in February, closely mirroring the climate of the previous month. Weather in February »

Weather in March

March, the first month of the spring in Lebanon, is a frosty month, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 43.7°F (6.5°C). March comes with a subtle rise, with the average high-temperature adjusting from a cold 36.7°F (2.6°C) in February to a frosty 43.7°F (6.5°C). Weather in March »

Weather in April

April is a refreshing spring month in Lebanon, Connecticut, with an average temperature ranging between max 55.9°F (13.3°C) and min 39.6°F (4.2°C). A shift in the average high-temperature is noticeable in April, changing from a chilly 43.7°F (6.5°C) in March to a refreshing 55.9°F (13.3°C). Weather in April »

Weather in May

May, the last month of the spring in Lebanon, is a refreshing month, with an average temperature fluctuating between 48.9°F (9.4°C) and 67.1°F (19.5°C). An increase in the average high-temperature marks May, moving from April's moderate 55.9°F (13.3°C) to a still refreshing 67.1°F (19.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Lebanon, Connecticut, with an average temperature fluctuating between 74.8°F (23.8°C) and 56.3°F (13.5°C). Lebanon, Connecticut, in June experiences a slight uptick in the average high-temperature, adjusting from May's comfortable 67.1°F (19.5°C) to a warm 74.8°F (23.8°C). Weather in June »

Weather in July

July, like June, in Lebanon, Connecticut, is a moderately hot summer month, with an average temperature fluctuating between 63°F (17.2°C) and 81.9°F (27.7°C). July, on average, is the warmest month, registering a high temperature of 81.9°F (27.7°C) and a low of 63°F (17.2°C). The 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 Lebanon, Connecticut, with an average temperature varying between 80.2°F (26.8°C) and 62.2°F (16.8°C). In Lebanon, August's average high-temperature stands at a still warm 80.2°F (26.8°C), closely related to the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Lebanon, is also an agreeable month, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 73.2°F (22.9°C). September heralds a minor drop in average high-temperature, sliding from August's moderately hot 80.2°F (26.8°C) to a pleasant 73.2°F (22.9°C). Weather in September »

Weather in October

October, like September, in Lebanon, Connecticut, is another refreshing autumn month, with temperature in the range of an average low of 46.4°F (8°C) and an average high of 61°F (16.1°C). Lebanon, Connecticut, in October demonstrates a small temperature transition, adjusting from an average high of an agreeable 73.2°F (22.9°C) in September to a comfortable 61°F (16.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Lebanon, is also a frosty month, with an average temperature varying between 49.1°F (9.5°C) and 36.1°F (2.3°C). As October transitions into November, Lebanon sees a drop in the average high-temperature, transitioning from a comfortable 61°F (16.1°C) to a frosty 49.1°F (9.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Lebanon, Connecticut, with an average temperature ranging between max 39.4°F (4.1°C) and min 28.6°F (-1.9°C). As Lebanon enters December, the average high-temperature decreases from the a chilly 49.1°F (9.5°C) of November to a wintry 39.4°F (4.1°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Lebanon?

January stands out as Lebanon's coldest month, with an average high-temperature of 33.4°F (0.8°C) and a low-temperature of 21.6°F (-5.8°C).

How much does it rain in Lebanon?

Throughout the year, in Lebanon, there are 164.2 rainfall days, and 33.74" (857mm) of precipitation is accumulated.

When does it snow in Lebanon?

Months with snowfall in Lebanon, Connecticut, are January through May, November and December.

How much does it snow in Lebanon?

Throughout the year, in Lebanon, there are 31.6 snowfall days, and 15.98" (406mm) of snow is accumulated.

When is the lowest UV index in Lebanon?

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

What is the most humid month in Lebanon?

The months with the highest humidity in Lebanon are February and October, with an average relative humidity of 79%.

When does it snow the most in Lebanon?

The month with the most snowfall is March, when snow falls for 7.3 days and typically aggregates up to 4.41" (112mm) of snow.

When is Daylight Saving Time (DST) in Lebanon?

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 Lebanon?

With an average relative humidity of 72%, April is the least humid month.

When it does not snow in Lebanon?

June through October are months without snowfall in Lebanon, Connecticut.

When are the longest days in Lebanon?

June has the longest days of the year in Lebanon, Connecticut, with an average of 15h and 6min of daylight.

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

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

What is the warmest month in Lebanon?

With average high temperatures of 81.9°F (27.7°C) and lows of 63°F (17.2°C), July is the warmest month.

What month has the most sunshine in Lebanon?

August has the most sunshine of the year, with an average of 10.3h of sunshine.

What is the driest month in Lebanon?

September is the month with the least rainfall in Lebanon, Connecticut. Rain falls for 13.5 days and accumulates 1.73" (44mm) of precipitation.

What is the wettest month in Lebanon?

The month with the most rainfall in Lebanon, Connecticut, is December, when the rain falls for 11.5 days and typically aggregates up to 3.46" (88mm) of precipitation.

What is the month with the shortest days in Lebanon?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

What is the month with the least sunshine in Lebanon?

The month with the least sunshine is December, with an average of 4.7h of sunshine.

Average temperature
Lebanon, CT

Average temperature - Lebanon, CT

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.4°F).

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure
Lebanon, CT

Average pressure - Lebanon, CT

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Lebanon, CT

Average wind speed - Lebanon, CT

The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity
Lebanon, CT

Average humidity - Lebanon, CT

The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall
Lebanon, CT

Average rainfall - Lebanon, CT

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days
Lebanon, CT

Average rainfall days - Lebanon, CT

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall
Lebanon, CT

Average snowfall - Lebanon, CT

The month with the highest snowfall is March (4.41").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Lebanon, CT

Average snowfall days - Lebanon, CT

The month with the highest number of snowfall days is January (8.3 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
Lebanon, CT

Average daylight / Average sunshine - Lebanon, CT

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

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Average sunshine days
Lebanon, CT

Average sunshine days - Lebanon, CT

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index
Lebanon, CT

Average UV index - Lebanon, CT

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
Lebanon, CT

Average visibility - Lebanon, CT

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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Lebanon, Connecticut, USA

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