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The weather in New Jersey in December is very cold with temperatures between 2°C and 7°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in New Jersey during the month of December. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
You can expect a few days of snow in New Jersey during December. It’s important to get out your snow boots and warm mittens to stay warm while you explore New Jersey.
Our weather forecast can give you a great sense of what weather to expect in New Jersey in December 2024.
If you’re planning to visit New Jersey in the near future, we highly recommend that you review the 14 day weather forecast for New Jersey before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -2° | 6 | 18 | 7 | 50 mm | Awful | New Jersey in January |
| February | 4° / -1° | 5 | 16 | 7 | 64 mm | Awful | New Jersey in February |
| March | 8° / 3° | 5 | 22 | 4 | 70 mm | Bad | New Jersey in March |
| April | 14° / 8° | 5 | 25 | 0 | 63 mm | Good | New Jersey in April |
| May | 19° / 13° | 6 | 25 | 0 | 90 mm | Good | New Jersey in May |
| June | 24° / 18° | 5 | 25 | 0 | 103 mm | Perfect | New Jersey in June |
| July | 28° / 22° | 7 | 24 | 0 | 134 mm | Good | New Jersey in July |
| August | 27° / 22° | 5 | 26 | 0 | 122 mm | Perfect | New Jersey in August |
| September | 24° / 18° | 4 | 26 | 0 | 83 mm | Perfect | New Jersey in September |
| October | 18° / 13° | 5 | 26 | 0 | 79 mm | Good | New Jersey in October |
| November | 12° / 7° | 4 | 25 | 1 | 50 mm | Ok | New Jersey in November |
| December | 7° / 2° | 5 | 21 | 5 | 78 mm | Bad | New Jersey in December |