Climate averages 1991–2020
Newark weather
in December.
A cold, wet month: the 10th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Newark: daytime highs average 6.1°C and nights cool to about -1.4°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 103 mm of rain on roughly 10 days, which makes December a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 19 min on an average December day.
The nearest other city in this atlas is Passaic (14 km away). In December its highs average 5.6°C, 0.5°C cooler than Newark, with 103 mm of rain.
Among the 498 cities listed in the United States, Newark ranks joint 326th of 498 for the warmest December highs and joint 395th of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; Newark is 4.4°C cooler than that mean.
From December to January, average highs fall by 2.7°C to 3.4°C, and monthly rainfall falls from 103 mm to 85 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Newark climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.4°C-4.7°C | -4.7°C | 85 | 9.2 | 9.610 h |
| February | 4.9°C-4.3°C | -4.3°C | 78 | 8.5 | 10.611 h |
| March | 9.4°C-0.4°C | -0.4°C | 107 | 10.2 | 11.912 h |
| April | 15.9°C5.6°C | 5.6°C | 94 | 10.8 | 13.313 h |
| May | 21.3°C11.3°C | 11.3°C | 90 | 11.7 | 14.414 h |
| June | 26.3°C16.7°C | 16.7°C | 104 | 11.2 | 15.015 h |
| July | 29.2°C20.0°C | 20.0°C | 106 | 11.0 | 14.815 h |
| August | 28.1°C19.3°C | 19.3°C | 102 | 10.7 | 13.814 h |
| September | 24.2°C15.6°C | 15.6°C | 102 | 9.4 | 12.513 h |
| October | 17.7°C9.3°C | 9.3°C | 99 | 8.7 | 11.211 h |
| November | 11.5°C3.4°C | 3.4°C | 80 | 8.2 | 10.010 h |
| December, selected | 6.1°C-1.4°C | -1.4°C | 103 | 9.7 | 9.39 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Passaic in DecemberUnited States · 14 kmHigh 5.6°C · Low -1.4°C · 103 mm rain
- New York City in DecemberUnited States · 14 kmHigh 5.8°C · Low -1.4°C · 100 mm rain
- Manhattan in DecemberUnited States · 18 kmHigh 5.7°C · Low -1.4°C · 100 mm rain
- Staten Island in DecemberUnited States · 19 kmHigh 6.4°C · Low -0.7°C · 100 mm rain
- Paterson in DecemberUnited States · 20 kmHigh 5.6°C · Low -1.4°C · 105 mm rain
- Brooklyn in DecemberUnited States · 21 kmHigh 6.1°C · Low -0.9°C · 100 mm rain
- The Bronx in DecemberUnited States · 29 kmHigh 5.9°C · Low -1.4°C · 105 mm rain
- Queens in DecemberUnited States · 29 kmHigh 6.3°C · Low -0.3°C · 105 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Newark) is explained once on the Newark year overview and on the Sources, method and limits page.
Passaic lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.