Climate and monthly weather forecast
Lebanon, NJ

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Weather in January

January, the same as December, is an icy winter month in Lebanon, New Jersey, with an average temperature ranging between min 22.5°F (-5.3°C) and max 35.2°F (1.8°C). In Lebanon, the lowest average temperatures are observed in January, with a high of 35.2°F (1.8°C) and a low of 22.5°F (-5.3°C). Weather in January »

Weather in February

February, the last month of the winter in Lebanon, is also an icy month, with an average temperature ranging between min 23.9°F (-4.5°C) and max 38.5°F (3.6°C). February's presence records an average high-temperature of a still icy 38.5°F (3.6°C), closely mirroring January's climate. Weather in February »

Weather in March

March, the first month of the spring in Lebanon, is a chilly month, with temperature in the range of an average low of 31.6°F (-0.2°C) and an average high of 47.1°F (8.4°C). March's arrival signals a modest temperature shift, moving from a cold 38.5°F (3.6°C) in February to a frosty 47.1°F (8.4°C). Weather in March »

Weather in April

April is a mild spring month in Lebanon, New Jersey, with an average temperature varying between 59.4°F (15.2°C) and 41.5°F (5.3°C). Lebanon in April shows a temperature shift, moving from an average high of a chilly 47.1°F (8.4°C) in March to a refreshing 59.4°F (15.2°C). Weather in April »

Weather in May

May, the last month of the spring in Lebanon, is a pleasant month, with an average temperature ranging between max 69.6°F (20.9°C) and min 51.3°F (10.7°C). In Lebanon, the average high-temperature in May rises, from a moderate 59.4°F (15.2°C) in April, to an agreeable 69.6°F (20.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Lebanon, New Jersey, with an average temperature fluctuating between 58.5°F (14.7°C) and 77.5°F (25.3°C). June signals a minor shift in the average high-temperature, moving from May's pleasant 69.6°F (20.9°C) to a moderately hot 77.5°F (25.3°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Lebanon, New Jersey, with an average temperature fluctuating between 83.8°F (28.8°C) and 64.6°F (18.1°C). July is the month when Lebanon experiences its warmest temperatures, averaging a high of 83.8°F (28.8°C) and a low of 64.6°F (18.1°C). Throughout July, the heat index is computed to be a tropical 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Lebanon, New Jersey, with an average temperature ranging between max 81.9°F (27.7°C) and min 62.8°F (17.1°C). Lebanon greets August with an average high-temperature of a still warm 81.9°F (27.7°C), marking a slight deviation from the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Lebanon, is still a warm month, with an average temperature ranging between max 74.7°F (23.7°C) and min 56.5°F (13.6°C). Lebanon records a mild change in average high-temperature during September, easing from a warm 81.9°F (27.7°C) in August to a still moderately hot 74.7°F (23.7°C). Weather in September »

Weather in October

October, like September, in Lebanon, New Jersey, is another comfortable autumn month, with an average temperature ranging between min 46.6°F (8.1°C) and max 62.8°F (17.1°C). The shift from September to October corresponds with a decrease in the average high-temperature, down to a refreshing 62.8°F (17.1°C) from a moderately hot 74.7°F (23.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Lebanon, is another cool month, with an average temperature ranging between max 50.4°F (10.2°C) and min 36°F (2.2°C). In Lebanon, the average high-temperature in November decreases from a comfortable 62.8°F (17.1°C) in October to a fresh 50.4°F (10.2°C). Weather in November »

Weather in December

December, the first month of the winter in Lebanon, is also an icy month, with an average temperature ranging between min 29.7°F (-1.3°C) and max 41.2°F (5.1°C). Lebanon's progression into December includes a drop in the average high-temperature, from a fresh 50.4°F (10.2°C) in November to an icy 41.2°F (5.1°C). Weather in December »
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

Lebanon's temperature records reveal January as the coldest month, marked by average highs of 35.2°F (1.8°C) and lows of 22.5°F (-5.3°C).

How much does it rain?

Throughout the year, there are 160.3 rainfall days, and 29.06" (738mm) of precipitation is accumulated.

When does it snow in Lebanon?

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

How many days does it snow?

Throughout the year, in Lebanon, there are 27 snowfall days, and 12.2" (310mm) of snow is accumulated.

When is the lowest UV index?

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

What is the most humid month?

February, October and December, with an average relative humidity of 80%, are most humid months.

What is the month with the least sunshine in Lebanon?

February has the least sunshine of the year, with an average of 4.6h of sunshine.

What is the snowiest month?

The month with the most snowfall is March, when snow falls for 5.6 days and typically aggregates up to 3.78" (96mm) of snow.

When is Daylight Saving Time (DST)?

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?

The least humid month is April, with an average relative humidity of 75%.

When it does not snow?

In Lebanon, snow does not fall in June through September.

When are the longest days?

June has the longest days of the year, with an average of 15h and 0min of daylight.

When is the highest UV index?

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

What time of the year is the hottest?

Lebanon records the warmest temperatures in July, averaging a high of 83.8°F (28.8°C) and a low of 64.6°F (18.1°C).

What is the wettest month in Lebanon?

July is the month with the most rainfall. Rain falls for 17.3 days and accumulates 2.95" (75mm) of precipitation.

What month has the most sunshine?

With an average of 10.4h of sunshine, July has the most sunshine of the year.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 1.54" (39mm) of precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

Average temperature
Lebanon, NJ

Average temperature - Lebanon, NJ

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.2°F).

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure
Lebanon, NJ

Average pressure - Lebanon, NJ

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Lebanon, NJ

Average wind speed - Lebanon, NJ

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity
Lebanon, NJ

Average humidity - Lebanon, NJ

The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (75%).

Average rainfall
Lebanon, NJ

Average rainfall - Lebanon, NJ

The wettest month (with the highest rainfall) is July (2.95").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days
Lebanon, NJ

Average rainfall days - Lebanon, NJ

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9 days).

Average snowfall
Lebanon, NJ

Average snowfall - Lebanon, NJ

The month with the highest snowfall is March (3.78").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Lebanon, NJ

Average snowfall days - Lebanon, NJ

The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Lebanon, NJ

Average daylight / Average sunshine - Lebanon, NJ

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days
Lebanon, NJ

Average sunshine days - Lebanon, NJ

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.7 days).

Average UV index
Lebanon, NJ

Average UV index - Lebanon, NJ

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).

Average cloud cover
Lebanon, NJ

Average cloud cover - Lebanon, NJ

The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility
Lebanon, NJ

Average visibility - Lebanon, NJ

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

Lebanon, New Jersey, USA

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