Climate and monthly weather forecast
Whippany, NJ

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Weather in January

January, the same as December, is another cold winter month in Whippany, New Jersey, with an average temperature varying between 34.9°F (1.6°C) and 22.5°F (-5.3°C). January is the coldest month, exhibiting average temperatures of 34.9°F (1.6°C) at the peak and 22.5°F (-5.3°C) at the base. Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Whippany, New Jersey, with an average temperature ranging between max 38.3°F (3.5°C) and min 24.1°F (-4.4°C). The arrival of February brings an average high-temperature of a still cold 38.3°F (3.5°C), closely following the temperature pattern of January. Weather in February »

Weather in March

March, the first month of the spring in Whippany, is a chilly month, with an average temperature varying between 46°F (7.8°C) and 31.5°F (-0.3°C). With the beginning of March, Whippany's average high-temperature sees a minor increase, transitioning from an icy 38.3°F (3.5°C) in February to a chilly 46°F (7.8°C). Weather in March »

Weather in April

April in Whippany, New Jersey, is a moderate spring month, with an average temperature fluctuating between 58.3°F (14.6°C) and 41.7°F (5.4°C). With the onset of April, Whippany sees a temperature rise, with the average high-temperature moving from March's chilly 46°F (7.8°C) to a moderate 58.3°F (14.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Whippany, New Jersey, with an average temperature varying between 51.3°F (10.7°C) and 68.9°F (20.5°C). The arrival of May brings a change in Whippany's weather, with average high-temperatures moving from April's 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 warm month in Whippany, New Jersey, with an average temperature fluctuating between 77.4°F (25.2°C) and 58.8°F (14.9°C). June's arrival sees a mild rise in the average high-temperature, transitioning from May's agreeable 68.9°F (20.5°C) to a warm 77.4°F (25.2°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Whippany, New Jersey, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 83.7°F (28.7°C). July, recognised by an average high temperature of 83.7°F (28.7°C) and a low of 65.7°F (18.7°C), is Whippany's warmest month. July's mean heat index is appraised at a tropical 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Whippany, is also a moderately hot month, with an average temperature ranging between min 64°F (17.8°C) and max 81.5°F (27.5°C). The shift into August records an average high-temperature of a still warm 81.5°F (27.5°C), subtly varied from July's 83.7°F (28.7°C). Weather in August »

Weather in September

September, the first month of the autumn in Whippany, is also a moderately hot month, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 74.5°F (23.6°C). A minor decrease in the average high-temperature is observed during September, shifting from 81.5°F (27.5°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 Whippany, New Jersey, with an average temperature varying between 47.3°F (8.5°C) and 62.2°F (16.8°C). October comes with a decrease in the average high-temperature, falling from a moderately hot 74.5°F (23.6°C) in September to an enjoyable 62.2°F (16.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Whippany, is also a fresh month, with an average temperature fluctuating between 36.5°F (2.5°C) and 50.5°F (10.3°C). Arrival of November comes with a reduction in the average high-temperature, falling from an enjoyable 62.2°F (16.8°C) in October to a fresh 50.5°F (10.3°C). Weather in November »

Weather in December

December, the first month of the winter in Whippany, is still a cold month, with an average temperature ranging between min 29.5°F (-1.4°C) and max 40.8°F (4.9°C). Whippany's weather changes with the onset of December, slightly 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: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

Whippany's temperature records reveal January as the coldest month, marked by average highs of 34.9°F (1.6°C) and lows of 22.5°F (-5.3°C).

What is the driest month?

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 much does it rain?

Throughout the year, there are 157.9 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

When does it snow?

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

How much does it snow?

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

What are the months with the lowest UV index?

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

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?

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

When does it snow the most?

March is the month with the most snowfall. Snow falls for 5.2 days and accumulates 3.7" (94mm) 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 74%.

When it does not snow?

In Whippany, snow does not fall in June through October.

When are the longest days?

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

When is the highest UV index?

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

What is the hottest time of year?

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

What is the rainiest month?

July is the month with the most rainfall. Rain falls for 17.6 days and accumulates 3.19" (81mm) of precipitation.

What month has the most sunshine?

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

What is the month with the shortest days?

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

Average temperature
Whippany, NJ

Average temperature - Whippany, 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).

Average pressure
Whippany, NJ

Average pressure - Whippany, 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
Whippany, NJ

Average wind speed - Whippany, 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).

Average humidity
Whippany, NJ

Average humidity - Whippany, NJ

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

Average rainfall
Whippany, NJ

Average rainfall - Whippany, 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").

Average rainfall days
Whippany, NJ

Average rainfall days - Whippany, 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).

Average snowfall
Whippany, NJ

Average snowfall - Whippany, 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").

Average snowfall days
Whippany, NJ

Average snowfall days - Whippany, 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).

Average daylight / Average sunshine
Whippany, NJ

Average daylight / Average sunshine - Whippany, 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).

Average sunshine days
Whippany, NJ

Average sunshine days - Whippany, NJ

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

Average UV index
Whippany, NJ

Average UV index - Whippany, 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
Whippany, NJ

Average cloud cover - Whippany, 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).

Average visibility
Whippany, NJ

Average visibility - Whippany, 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).

Whippany, New Jersey, USA

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