Monthly weather forecast and climate
Morristown, NJ

Downtown Morristown, New Jersey, in a perfect aerial shot of the rest of the city, the green tree cover, and the stunning colorful clear sky above
Downtown Morristown, New Jersey, in a perfect aerial shot of the rest of the city, the green tree cover, and the stunning colorful clear sky above

Weather in January

January, the same as December, is another cold winter month in Morristown, New Jersey, with average temperature fluctuating between 35.1°F (1.7°C) and 22.5°F (-5.3°C). January is the coldest month, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.5°F (-5.3°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Morristown, New Jersey, with temperature in the range of an average low of 24.3°F (-4.3°C) and an average high of 38.3°F (3.5°C). In Morristown, the average high-temperature is relatively the same as in January - a still wintry 38.3°F (3.5°C). Weather in February »

Weather in March

March, the first month of the spring, in Morristown, is a chilly month, with average temperature fluctuating between 46.4°F (8°C) and 31.6°F (-0.2°C). In Morristown, the average high-temperature slightly increases, from a cold 38.3°F (3.5°C) in February, to a chilly 46.4°F (8°C). Weather in March »

Weather in April

April is a moderate spring month in Morristown, New Jersey, with average temperature fluctuating between 41.9°F (5.5°C) and 58.5°F (14.7°C). In April, the average high-temperature rises, from a frosty 46.4°F (8°C) in March, to a moderate 58.5°F (14.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Morristown, New Jersey, with average temperature fluctuating between 51.4°F (10.8°C) and 69.1°F (20.6°C). In May, the average high-temperature increases, from a mild 58.5°F (14.7°C) in April, to a pleasant 69.1°F (20.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Morristown, New Jersey, with average temperature fluctuating between 77.5°F (25.3°C) and 59°F (15°C). In June, the average high-temperature slightly increases, from a pleasant 69.1°F (20.6°C) in May, to a moderately hot 77.5°F (25.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Morristown, New Jersey, with average temperature fluctuating between 65.7°F (18.7°C) and 83.7°F (28.7°C). The warmest month is July, with an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 65.7°F (18.7°C). In July, the average heat index is evaluated at a hot 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer, in Morristown, is also a moderately hot month, with average temperature ranging between max 81.9°F (27.7°C) and min 64.2°F (17.9°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 81.9°F (27.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Morristown, New Jersey, with average temperature fluctuating between 74.5°F (23.6°C) and 57.6°F (14.2°C). In September, the average high-temperature slightly decreases, from 81.9°F (27.7°C) in August, to a still warm 74.5°F (23.6°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Morristown, New Jersey, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 47.5°F (8.6°C). In October, the average high-temperature drops, from a warm 74.5°F (23.6°C) in September, to an enjoyable 62.2°F (16.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Morristown, New Jersey, with average temperature fluctuating between 50.5°F (10.3°C) and 36.5°F (2.5°C). In November, the average high-temperature decreases, from a comfortable 62.2°F (16.8°C) in October, to a cool 50.5°F (10.3°C). Weather in November »

Weather in December

December, the first month of the winter, in Morristown, is also a wintry month, with average temperature ranging between min 29.7°F (-1.3°C) and max 40.8°F (4.9°C). In Morristown, New Jersey, the average high-temperature drops, from a cool 50.5°F (10.3°C) in November, to a cold 40.8°F (4.9°C). Weather in December »
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FAQ

What is the coldest month in Morristown?

The coldest month in Morristown is January, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.5°F (-5.3°C).

How much does it rain in Morristown?

In Morristown, New Jersey, during the entire year, the rain falls for 164.2 days and collects up to 30.67" (779mm) of precipitation.

When does it snow in Morristown?

January through May, October through December are months with snowfall in Morristown, New Jersey.

How many days does it snow in Morristown?

Throughout the year, there are 26 snowfall days, and 11.61" (295mm) of snow is accumulated.

What are the months with the lowest UV index in Morristown?

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

What is the most humid month in Morristown?

Months with the highest humidity in Morristown, New Jersey, are February and December, with an average relative humidity of 80%.

What is the month with the least sunshine in Morristown?

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

When does it snow the most in Morristown?

The month with the most snowfall is March when snow falls for 5.5 days and typically aggregates up to 3.5" (89mm) of snow.

What is the least humid month in Morristown?

Months with the lowest humidity are April and August, with an average relative humidity of 74%.

When it does not snow in Morristown?

June through September are months without snowfall in Morristown, New Jersey.

When are the longest days in Morristown?

With an average of 15.1h of daylight, June has the longest days of the year in Morristown.

When is the highest UV index in Morristown?

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

What is the warmest month in Morristown?

July is the warmest month in Morristown, with an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 65.7°F (18.7°C).

What is the rainiest month in Morristown?

The month with the most rainfall in Morristown, New Jersey, is July when the rain falls for 17.4 days and typically aggregates up to 3.27" (83mm) of precipitation.

What month has the most sunshine in Morristown?

The month with the most sunshine is July, with an average of 10.3h of sunshine.

What is the driest month in Morristown?

The month with the least rainfall in Morristown, New Jersey, is September when the rain falls for 13.5 days and typically collects 1.69" (43mm) of precipitation.

What is the month with the shortest days in Morristown?

With an average of 9.3h of daylight, December has the shortest days of the year in Morristown.

Average temperature
Morristown, NJ

Average temperature - Morristown, NJ

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.1°F).

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure
Morristown, NJ

Average pressure - Morristown, NJ

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

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Average wind speed
Morristown, NJ

Average wind speed - Morristown, NJ

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity
Morristown, NJ

Average humidity - Morristown, NJ

Months with the highest relative humidity are February and December (80%).
Months with the lowest relative humidity are April and August (74%).

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Average rainfall
Morristown, NJ

Average rainfall - Morristown, NJ

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days
Morristown, NJ

Average rainfall days - Morristown, NJ

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall
Morristown, NJ

Average snowfall - Morristown, NJ

The month with the highest snowfall is March (3.5").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Morristown, NJ

Average snowfall days - Morristown, NJ

The month with the highest number of snowfall days is January (7.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Morristown, NJ

Average daylight / Average sunshine - Morristown, NJ

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days
Morristown, NJ

Average sunshine days - Morristown, NJ

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (10.5 days).

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Average UV index
Morristown, NJ

Average UV index - Morristown, NJ

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Morristown, NJ

Average visibility - Morristown, NJ

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

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