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Parsippany (NJ) Weather and Climate: A Comprehensive Guide

The climate in Parsippany is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to cold in the cooler months. It also has a relatively rain/snowy climate with high levels of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

In Parsippany, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 30°C in July to a chilly 3°C in February.

Nighttime temperatures can drop, with average lows reaching -7°C in February. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Parsippany experiences significant rain/snowfall throughout the year, averaging 1276 mm of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 132 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, November, still receives a respectable 79 mm of rainfall.

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

Sunshine over the year

In Parsippany, summer days are longer and more sunny, with daily sunshine hours peaking at 9.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: New York City, the United States of America (45 KM, 28 Miles).

Daily hours of sunshine

Data from: New York City, the United States of America (45 KM, 28 Miles).

Forecast for Parsippany (NJ)

Fri   Dec 27
5°C | -9°C
S 2 m/s
partly cloudy and no rain

partly cloudy and no rain

Sat   Dec 28
8°C | -1°C
S 2 m/s
3.1 mm
overcast and rain

overcast and rain

Sun   Dec 29
15°C | 4°C
SE 5 m/s
5.3 mm
overcast and rain

overcast and rain

The best time of year to visit Parsippany in the United States of America

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Parsippany?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Parsippany?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Parsippany?
    The coldest month is February with an average maximum temperature of 3°C.
  • Which is the wettest month in Parsippany?
    June tops the wettest month list with 132 mm of rainfall.
  • Which is the driest month in Parsippany?
    November is the driest month with 79 mm of precipitation.
  • Which is the sunniest month in Parsippany?
    July is the sunniest month with an average of 271 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.