Whippany (NJ) Weather & Climate: Best Time to Visit

In Whippany, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a very warm 30°C (86°F) in July to a chilly 4°C (39°F) in the coolest month, January.

Nights vary from 18°C (64°F) in July to around -6°C (21°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Whippany experiences significant rain/snowfall throughout the year, averaging 1271 mm (50 in) of precipitation annually. Precipitation levels in Whippany remain relatively steady throughout the year. June has the most rain, with 129 mm (5.1 in) over 13 days. In the driest month November, this drops slightly to 79 mm (3.1 in), making the city's climate fairly predictable. For more details, please visit our Whippany Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

For those who appreciate different seasons, Whippany serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.0 hours of sunshine daily, and embrace the darker days in December, offering only 4.7 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Whippany.

The city experiences its highest humidity in September, reaching 68%. In April, the humidity drops to its lowest level at 55%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year