Parsippany (NJ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Parsippany.
Climate overview of Parsippany
The climate in Parsippany, New Jersey, United States of America, is marked by large temperature swings across the seasons, ranging from 30°C (86°F) in July to 3°C (37°F) in January.
The city has a wet climate, receiving around 1276 mm (50 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and cold winters. June is the wettest month. Sunshine peaks in July, when the city sees around 9.0 hours of sunshine per day.
Parsippany Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Parsippany - and find the best time to visit.
Monthly Temperature in Parsippany
In Parsippany, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 30°C (86°F) in July to a chilly 3°C (37°F) in January.
Nighttime temperatures range from 18°C (64°F) in July to -7°C (19°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Parsippany
Parsippany experiences significant rain/snowfall throughout the year, averaging 1276 mm (50 in) of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 132 mm (5.2 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, November, still receives a respectable 79 mm (3.1 in) of rainfall. For more details, please visit our Parsippany Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Parsippany
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
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Parsippany by Month
The relative humidity is high throughout the year in Parsippany.
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
Best Time to Visit Parsippany
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Most sunshine: May, June, July and August
- Fewest rainy days: February, March, September and November
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Parsippany
What is the best time to visit Parsippany?
September typically offers the most optimal weather in Parsippany. In contrast, January, February, March and December tend to have less optimal conditions. Parsippany has warm summers and cold winters.
What temperatures can I expect in Parsippany?
Daytime highs range from 3°C (37°F) in January to 30°C (86°F) in July. Nighttime lows range from -7°C (19°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Parsippany get?
Annual rainfall is around 1276 mm (50 in). June is the wettest month with 132 mm (5.2 in), while November is the driest with 79 mm (3.1 in).
How sunny is Parsippany?
Parsippany receives around 2,544 hours of sunshine per year. July is the sunniest month with 271 hours, while December is the cloudiest with just 141 hours. Overall, Parsippany enjoys abundant sunshine.
Parsippany 3-Day Forecast
Parsippany (NJ) 3-Day Forecast
Parsippany on the map
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