Climate and monthly weather forecast
Morris Plains, NJ

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Weather in January

January, like December, in Morris Plains, New Jersey, is another cold winter month, with an average temperature varying between 22.5°F (-5.3°C) and 34.9°F (1.6°C). January stands out as Morris Plains's coldest month, with an average high-temperature of 34.9°F (1.6°C) and a low-temperature of 22.5°F (-5.3°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Morris Plains, New Jersey, with an average temperature varying between 38.3°F (3.5°C) and 24.1°F (-4.4°C). At the onset of February, Morris Plains records an average high-temperature of a still wintry 38.3°F (3.5°C), showing little deviation from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Morris Plains, is a chilly month, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 31.5°F (-0.3°C). March introduces a marginal temperature uplift, with average high-temperatures adjusting from February's icy 38.3°F (3.5°C) to a chilly 46°F (7.8°C). Weather in March »

Weather in April

April is a moderate spring month in Morris Plains, New Jersey, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 58.3°F (14.6°C). Observing a rise in April, the average high-temperature goes from March's frosty 46°F (7.8°C) to a refreshing 58.3°F (14.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Morris Plains, New Jersey, with an average temperature varying between 68.9°F (20.5°C) and 51.3°F (10.7°C). The transition from April to May brings a temperature rise, with average high-temperatures increasing from a refreshing 58.3°F (14.6°C) to a pleasant 68.9°F (20.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Morris Plains, New Jersey, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 58.8°F (14.9°C). In Morris Plains, stepping into June brings a gentle temperature nudge, moving slightly up from May's agreeable 68.9°F (20.5°C) to a moderately hot 77.4°F (25.2°C). Weather in June »

Weather in July

July, like June, in Morris Plains, New Jersey, is a moderately hot summer month, with an average temperature ranging between max 83.7°F (28.7°C) and min 65.7°F (18.7°C). July brings the highest temperatures, with an average high of 83.7°F (28.7°C) and an average low of 65.7°F (18.7°C). July's mean heat index is computed to be a tropical 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Morris Plains, is another warm month, with an average temperature varying between 64°F (17.8°C) and 81.5°F (27.5°C). Morris Plains signifies an average high-temperature of a still warm 81.5°F (27.5°C) in August, closely mirroring the 83.7°F (28.7°C) of July. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Morris Plains, New Jersey, with an average temperature varying between 74.5°F (23.6°C) and 57.2°F (14°C). September's arrival aligns with a minor decrease in average high-temperatures, from August's 81.5°F (27.5°C) to a still warm 74.5°F (23.6°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Morris Plains, New Jersey, with an average temperature fluctuating between 62.2°F (16.8°C) and 47.3°F (8.5°C). The transition into October indicates a reduction in the average high-temperature, down to a comfortable 62.2°F (16.8°C) from September's warm 74.5°F (23.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Morris Plains, is also a fresh month, with an average temperature ranging between min 36.5°F (2.5°C) and max 50.5°F (10.3°C). The transition into November is accompanied by a temperature decrease, with the average high-temperature shifting from a refreshing 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 Morris Plains, is still a cold month, with an average temperature ranging between max 40.8°F (4.9°C) and min 29.5°F (-1.4°C). The onset of December brings a small change in high-temperatures, falling from a fresh 50.5°F (10.3°C) in November to a cold 40.8°F (4.9°C). Weather in December »
Updated: Feb 13, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

What month is the coldest in Morris Plains?

With average high temperatures of 34.9°F (1.6°C) and lows of 22.5°F (-5.3°C), January is the coldest month.

What is the driest month in Morris Plains?

The months with the least rainfall are January, February and September Rain falls for 8.3 days and accumulates 1.57" (40mm) of rain.

How many days does it rain in Morris Plains?

In Morris Plains, during the entire year, the rain falls for 157.9 days and collects up to 27.05" (687mm) of precipitation.

When does it snow in Morris Plains?

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

How many days does it snow in Morris Plains?

Throughout the year, in Morris Plains, New Jersey, there are 24 snowfall days, and 9.72" (247mm) of snow is accumulated.

What are the months with the lowest UV index in Morris Plains?

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

What is the most humid month in Morris Plains?

The months with the highest humidity are February, October and December, with an average relative humidity of 80%.

What is the month with the least sunshine in Morris Plains?

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

When does it snow the most in Morris Plains?

March is the month with the most snowfall in Morris Plains. Snow falls for 5.2 days and accumulates 3.7" (94mm) of snow.

When is Daylight Saving Time (DST) in Morris Plains?

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 Morris Plains?

With an average relative humidity of 74%, April is the least humid month in Morris Plains.

When it does not snow in Morris Plains?

June through October are months without snowfall.

When are the longest days in Morris Plains?

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

When is the highest UV index in Morris Plains?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Morris Plains, New Jersey.

What is the warmest month in Morris Plains?

In Morris Plains, New Jersey, the average highest temperatures are observed in July, with a high of 83.7°F (28.7°C) and a low of 65.7°F (18.7°C).

What is the wettest month in Morris Plains?

The month with the most rainfall in Morris Plains, New Jersey, is July, when the rain falls for 17.6 days and typically aggregates up to 3.19" (81mm) of precipitation.

What month has the most sunshine in Morris Plains?

With an average of 10.3h of sunshine, July has the most sunshine of the year in Morris Plains.

What is the month with the shortest days in Morris Plains?

December has the shortest days of the year in Morris Plains, New Jersey, with an average of 9h and 18min of daylight.

Average temperature
Morris Plains, NJ

Average temperature - Morris Plains, 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 (34.9°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
Morris Plains, NJ

Average pressure - Morris Plains, 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).

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Average wind speed
Morris Plains, NJ

Average wind speed - Morris Plains, 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
Morris Plains, NJ

Average humidity - Morris Plains, NJ

The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).

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Average rainfall
Morris Plains, NJ

Average rainfall - Morris Plains, NJ

The wettest month (with the highest rainfall) is July (3.19").
The driest months (with the least rainfall) are January, February and September (1.57").

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Average rainfall days
Morris Plains, NJ

Average rainfall days - Morris Plains, NJ

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall
Morris Plains, NJ

Average snowfall - Morris Plains, NJ

The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Morris Plains, NJ

Average snowfall days - Morris Plains, NJ

The month with the highest number of snowfall days is February (6.8 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
Morris Plains, NJ

Average daylight / Average sunshine - Morris Plains, NJ

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 18min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Morris Plains, NJ

Average sunshine days - Morris Plains, NJ

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index
Morris Plains, NJ

Average UV index - Morris Plains, 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).

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Average cloud cover
Morris Plains, NJ

Average cloud cover - Morris Plains, NJ

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

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Average visibility
Morris Plains, NJ

Average visibility - Morris Plains, NJ

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

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Morris Plains, New Jersey, USA

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