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Parsippany (NJ)
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Parsippany (NJ)
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United States weather

Weather in Parsippany, New Jersey for December 2025

Your guide to Parsippany weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 4 snowy days, Parsippany usually enjoys a light touch of snow in December.
    According to Parsippany snow forecast for December 2025, no snow is expected until the end of the month.

    • Temperatures

  • Until now, December 2025 in Parsippany is cooler than usual, with temperatures averaging 1.1 °F, this is -3.4 °F below the typical seasonal average.

  • Expect cooler weather in the next days in Parsippany with the forecast suggesting a temperature of 3.6 °F, lower than the historical average.

  • In general, the average temperature in Parsippany at the beginning of December is 4 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 4.7 °F by the end of December.

    • More

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Average dry days
16
Dry days
Average rainy days
11
Rainy days
Average snowy days
4
Snow days
Average temperatures
6°/0°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Parsippany Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Mist
4°
2
Fog
6°
3
Light rain shower
6°
4
Overcast
5°
5
Overcast
2°
6
Overcast
2°
7
Patchy rain possible
3°
8
Freezing fog
6°
9
Fog
5°
10
Light rain shower
8°
11
Heavy snow
8°
12
Partly cloudy
4°
13
Partly cloudy
2°
14
Overcast
2°
15
Sunny
6°
16
Sunny
2°
17
Overcast
3°
18
Mist
2°
19
Moderate rain
13°
20
Partly cloudy
1°
21
Sunny
7°
22
Overcast
1°
23
Light freezing rain
1°
24
Patchy rain possible
9°
25
Partly cloudy
3°
26
Moderate rain
8°
27
Sunny
-1°
28
Sunny
-2°
29
Patchy rain possible
10°
30
Patchy rain possible
9°
31
Sunny
6°

Temperatures trend during December in Parsippany

See the weather trend as well as the moving average line

December weather in Parsippany day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Mist
Mist
 4° /-1° 0.4 mm 0 cm
Dec. 2 Fog
Fog
 6° /0° 43.2 mm 0 cm
Dec. 3 Light rain shower
Light rain shower
 6° /1° 13.8 mm 0 cm
Dec. 4 Overcast
Overcast
 5° /-1° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 2° /-2° 6.6 mm 4.8 cm
Dec. 6 Overcast
Overcast
 2° /-3° 0 mm 0 cm
Dec. 7 Patchy rain possible
Patchy rain possible
 3° /-2° 0 mm 0 cm
Dec. 8 Freezing fog
Freezing fog
 6° /-2° 0 mm 0 cm
Dec. 9 Fog
Fog
 5° /-3° 7.8 mm 0 cm
Dec. 10 Light rain shower
Light rain shower
 8° /2° 14 mm 0 cm
Dec. 11 Heavy snow
Heavy snow
 8° /1° 24 mm 0.2 cm
Dec. 12 Partly cloudy
Partly cloudy
 4° /-3° 3.8 mm 0 cm
Dec. 13 Partly cloudy
Partly cloudy
 2° /-3° 0 mm 0 cm
Dec. 14 Overcast
Overcast
 2° /-4° 0 mm 0 cm
Dec. 15 Sunny
Sunny
 6° /-2° 0 mm 0 cm
Dec. 16 Sunny
Sunny
 2° /-9° 0 mm 0 cm
Dec. 17 Overcast
Overcast
 3° /-4° 0 mm 0 cm
Dec. 18 Mist
Mist
 2° /-3° 0.1 mm 0 cm
Dec. 19 Moderate rain
Moderate rain
 13° /-3° 17.8 mm 0 cm
Dec. 20 Partly cloudy
Partly cloudy
 1° /-4° 0 mm 0 cm
Dec. 21 Sunny
Sunny
 7° /0° 0 mm 0 cm
Dec. 22 Overcast
Overcast
 1° /-3° 0 mm 0 cm
Dec. 23 Light freezing rain
Light freezing rain
 1° /-2° 0.2 mm 0 cm
Dec. 24 Patchy rain possible
Patchy rain possible
 9° /3° 0.2 mm 0 cm
Dec. 25 Partly cloudy
Partly cloudy
 3° /-1° 0 mm 0 cm
Dec. 26 Moderate rain
Moderate rain
 8° /2° 10.5 mm 0 cm
Dec. 27 Sunny
Sunny
 -1° /-5° 0 mm 0 cm
Dec. 28 Sunny
Sunny
 -2° /-6° 0 mm 0 cm
Dec. 29 Patchy rain possible
Patchy rain possible
 10° /5° 0.5 mm 0 cm
Dec. 30 Patchy rain possible
Patchy rain possible
 9° /3° 21.9 mm 0 cm
Dec. 31 Sunny
Sunny
 6° /1° 1.2 mm 0 cm
Next
Important Notice
Our weather forecast for Parsippany in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Parsippany forecast closer to your planned date for the most up-to-date weather information.
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Parsippany in December - FAQ

What are the expected maximum and minimum temperatures in Parsippany during December?
Prepare for cooler days with highs just around 6° and colder nights, dipping below 0°.
How much rainfall should be expected in Parsippany during December?
Significant rainfall exceeding 274.4 mm is expected in Parsippany during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Parsippany in December 2025?
Parsippany experiences an average snowfall of 11.67 cm during December, occurring over 4 days.
What are the typical wind conditions in Parsippany during December?
The average wind speed in Parsippany during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

Parsippany snow forecast December 2025

Track daily snowfall levels and discover Parsippany’s snowy potential this December ❄️
On average, Parsippany sees 4 snowy days during December, with approximately 11.7 cm of total snowfall.

December rainfall patterns in Parsippany

Explore the daily rainfall trends and prepare for Parsippanys December weather 💧
Typically, Parsippany has 11 rainy days in December with a total of 274.4 mm of rainfall.

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Location coordinates Where is Parsippany?

Get accurate weather forecasts for Parsippany, located at latitude 40.858 and longitude -74.426. Stay updated with localized weather information tailored for Parsippany.

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