Weather in New Jersey for December 2025
Snowfall in New Jersey during December is quite rare, with fewer than 2 snowy days on average.
According to New Jersey snow forecast for December 2025, 2 snowy days are expected in the next 2 weeks. The closest date with snow is Sunday, December 14.Until now, December 2025 in New Jersey is cooler than usual, with temperatures averaging 2.2 °F, this is -3.5 °F below the typical seasonal average.
The forecast for the upcoming days in New Jersey predicts a temperature of 7 °F, which is slightly above the historical average.
In general, the average temperature in New Jersey at the beginning of December is 4.7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 8.9 °F by the end of December.
New Jersey in December brings notable rainfall, with an average of 16 rainy days and a total precipitation of 251 mm.
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New Jersey Weather December
What’s the Weather Like in New Jersey This December?
Temperatures trend during December in New Jersey
December weather in New Jersey day by day
| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Overcast | 5° /-1° | 0.4 mm | 0 cm | |
| Dec. 2 |  Fog | 6° /1° | 44.5 mm | 0 cm | |
| Dec. 3 |  Sunny | 7° /1° | 12.7 mm | 0 cm | |
| Dec. 4 | Overcast | 5° /-1° | 0 mm | 0 cm | |
| Dec. 5 | Overcast | 3° /-2° | 8.2 mm | 1.8 cm | |
| Dec. 6 |  Freezing fog | 3° /-2° | 0 mm | 0 cm | |
| Dec. 7 | Overcast | 4° /-2° | 0 mm | 0 cm | |
| Dec. 8 | Freezing fog | 5° /-2° | 0 mm | 0 cm | |
| Dec. 9 | Fog | 6° /-1° | 8.2 mm | 0 cm | |
| Dec. 10 |  Light rain shower | 9° /2° | 9.5 mm | 0 cm | |
| Dec. 11 |  Light sleet | 9° /2° | 25.6 mm | 0 cm | |
| Dec. 12 |  Partly cloudy | 5° /-2° | 3.7 mm | 0 cm | |
| Dec. 13 | Sunny | 5° /-6° | 0 mm | 0 cm | |
| Dec. 14 |  Moderate snow | 1° /-5° | 18.8 mm | 13.6 cm | |
| Dec. 15 |  Light freezing rain | -1° /-7° | 0.4 mm | 0.3 cm | |
| Dec. 16 | Partly cloudy | 1° /-3° | 0 mm | 0 cm | |
| Dec. 17 | Partly cloudy | 5° /-1° | 0 mm | 0 cm | |
| Dec. 18 | Overcast | 10° /4° | 0 mm | 0 cm | |
| Dec. 19 | Patchy rain possible | 8° /5° | 1.3 mm | 0 cm | |
| Dec. 20 | Patchy rain possible | 7° /5° | 0.8 mm | 0 cm | |
| Dec. 21 | Patchy rain possible | 5° /4° | 1.4 mm | 0 cm | |
| Dec. 22 | Overcast | 7° /3° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | 11° /6° | 0.1 mm | 0 cm | |
| Dec. 24 | Partly cloudy | 19° /7° | 0 mm | 0 cm | |
| Dec. 25 | Patchy rain possible | 6° /4° | 0.2 mm | 0 cm | |
| Dec. 26 | Patchy rain possible | 14° /7° | 1.9 mm | 0 cm | |
| Dec. 27 |  Cloudy | 6° /0° | 8.1 mm | 0 cm | |
| Dec. 28 | Sunny | 7° /2° | 22.1 mm | 0 cm | |
| Dec. 29 | Cloudy | 11° /4° | 0.7 mm | 0 cm | |
| Dec. 30 | Sunny | 10° /4° | 19.7 mm | 0 cm | |
| Dec. 31 | Patchy rain possible | 8° /2° | 3.7 mm | 0 cm | |
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