Atlantic City weather in December: Atlantic City, New Jersey: normal highs, lows, rain and records for December
Atlantic City in December has a normal high of 48°F and a normal low of 29°F, a daily mean of 39°F, falling from 52°F on the 1st to 45°F by the 31st. Measurable precipitation falls on 11 days in a normal December, 4.47 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 9°C and low of −1°C, 114 mm of precipitation and 8 cm of snow in December.
- NOAA stationAtlantic City International Airport
- Station IDUSW00093730
- Location39.45°N 74.57°W
- Elevation60 ft (18 m)
- From the center8 miles
- Population38,959
- Jan 43° 25°
- Feb 46° 26°
- Mar 53° 33°
- Apr 63° 42°
- May 73° 51°
- Jun 82° 61°
- Jul 87° 67°
- Aug 85° 65°
- Sep 79° 58°
- Oct 68° 46°
- Nov 57° 37°
- Dec 48° 29°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Atlantic City in December?
The normal high is 48°F and the normal low 29°F, for a daily mean of 38.7°F. December is 8.1°F cooler than November and 4.6°F warmer than January. December is the 10th warmest month of the year in Atlantic City and the 3rd wettest. Across the month the normal high falls 7°F, from 52°F on December 1 to 45°F on December 31. From one year to the next December's mean temperature typically moves about 4.1°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 35°F and 43°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 52°F | 33°F | 34% | 22% |
| December 8 | 50°F | 31°F | 35% | 23% |
| December 15 | 48°F | 30°F | 35% | 23% |
| December 22 | 47°F | 28°F | 34% | 23% |
| December 31 | 45°F | 27°F | 34% | 22% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 52°F | 33°F | 34% | 22% | 9 h 40 min |
| December 2 | 52°F | 32°F | 34% | 22% | 9 h 40 min |
| December 3 | 52°F | 32°F | 34% | 22% | 9 h 30 min |
| December 4 | 51°F | 32°F | 34% | 22% | 9 h 30 min |
| December 5 | 51°F | 32°F | 34% | 22% | 9 h 30 min |
| December 6 | 51°F | 31°F | 34% | 22% | 9 h 30 min |
| December 7 | 50°F | 31°F | 35% | 23% | 9 h 30 min |
| December 8 | 50°F | 31°F | 35% | 23% | 9 h 30 min |
| December 9 | 50°F | 31°F | 35% | 23% | 9 h 30 min |
| December 10 | 50°F | 31°F | 35% | 23% | 9 h 30 min |
| December 11 | 49°F | 30°F | 35% | 23% | 9 h 30 min |
| December 12 | 49°F | 30°F | 35% | 23% | 9 h 30 min |
| December 13 | 49°F | 30°F | 35% | 23% | 9 h 30 min |
| December 14 | 49°F | 30°F | 35% | 23% | 9 h 30 min |
| December 15 | 48°F | 30°F | 35% | 23% | 9 h 20 min |
| December 16 | 48°F | 29°F | 35% | 23% | 9 h 20 min |
| December 17 | 48°F | 29°F | 35% | 23% | 9 h 20 min |
| December 18 | 48°F | 29°F | 34% | 23% | 9 h 20 min |
| December 19 | 47°F | 29°F | 34% | 23% | 9 h 20 min |
| December 20 | 47°F | 29°F | 34% | 23% | 9 h 20 min |
| December 21 | 47°F | 28°F | 34% | 23% | 9 h 20 min |
| December 22 | 47°F | 28°F | 34% | 23% | 9 h 20 min |
| December 23 | 46°F | 28°F | 34% | 23% | 9 h 20 min |
| December 24 | 46°F | 28°F | 34% | 23% | 9 h 20 min |
| December 25 | 46°F | 28°F | 34% | 23% | 9 h 20 min |
| December 26 | 46°F | 27°F | 34% | 23% | 9 h 20 min |
| December 27 | 46°F | 27°F | 34% | 22% | 9 h 20 min |
| December 28 | 45°F | 27°F | 34% | 22% | 9 h 20 min |
| December 29 | 45°F | 27°F | 34% | 22% | 9 h 20 min |
| December 30 | 45°F | 27°F | 34% | 22% | 9 h 20 min |
| December 31 | 45°F | 27°F | 34% | 22% | 9 h 30 min |
- Normal high
- 48°FDecember average
- Normal low
- 29°FDecember average
- Precipitation
- 4.47 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 3.2 inmonth total
- Nights at 32°F or colder
- 21
- Daylight
- 9 h 40 min to 9 h 30 minDecember 1 to December 31
- Sunshine
- 69%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093730; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Atlantic City in December?
On a given December day the chance of 0.01 inch or more is 34% on average, highest around December 10 (35%). In all, 4.47 in falls on 11 days of a normal December, 1 of them with an inch or more.
In a normal December in Atlantic City, 21 nights fall to freezing, 2 days stay below freezing all day and snowfall averages 3.2 inches.
Snow falls on 1 day in a normal December, and an inch or more covers the ground on 1 day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093730.
How humid and windy is Atlantic City in December?
At 3 p.m. the normal temperature is 42°F with 55% relative humidity and a dew point of 27°F; at 6 a.m. it is 33°F with 77% humidity. The wind averages 9.2 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 33°F | 26°F | 77% | 7.6 mph | 61% |
| 9 a.m. | 36°F | 28°F | 72% | 9.5 mph | 61% |
| noon | 42°F | 28°F | 57% | 12.7 mph | 60% |
| 3 p.m. | 42°F | 27°F | 55% | 12.6 mph | 60% |
| 6 p.m. | 38°F | 27°F | 66% | 8.0 mph | 66% |
| 9 p.m. | 35°F | 27°F | 72% | 7.7 mph | 61% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00093730. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in Atlantic City?
The warmest December temperature on Atlantic City's official record (since 1943) is 77°F, on December 7, 1998; the coldest is −7°F, on December 28, 1950. The wettest December brought 9.99 in (2009); the snowiest, 20.9 inches (2010).
The December mean against the 1991-2020 normal of 38.7°F: 2021 43.5°F (+4.8), 2022 37.3°F (−1.4), 2023 42.7°F (+4.0), 2024 37.7°F (−1.0), 2025 34.6°F (−4.1). 2 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 43.5°F | +4.8°F | 0.66 in |
| 2022 | 37.3°F | −1.4°F | 5.57 in |
| 2023 | 42.7°F | +4.0°F | 6.65 in |
| 2024 | 37.7°F | −1.0°F | 3.36 in |
| 2025 | 34.6°F | −4.1°F | 3.03 in |
Source: records: ACIS, NWS threaded record ACYthr; recent months: ACIS, station USW00093730. Records and recent months use complete months only.
How does December in Atlantic City compare across New Jersey?
Across the 33 places PlainClimate covers in New Jersey, December normal highs run from 41°F in Sussex to 51°F in Belleplain; Atlantic City's is 48°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Atlantic City in November57°F by day, 37°F at night
- Atlantic City in January43°F by day, 25°F at night
- Atlantic City through the yearEvery month, frost dates, records and recent years
- New Jersey in DecemberThe statewide normal and the warmest and coolest places
- Belleplain: New Jersey's warmest Decembernormal high 51°F