Atlantic City, NJ Climate & Monthly Averages
Atlantic City has a humid subtropical climate. July is the hottest month, averaging 83° by day; January is the coldest at 43°.
Atlantic City's climate is a story of contrasts
A 22°C spread between its warmest and coolest months puts Atlantic City among the more strongly seasonal places we cover. July averages 83°F (28°C) by day; January averages 43°F (6°C), with nights at 30°F (-1°C).
July
83° by day 72° at nightJanuary
43° by day 30° at nightThe two ends of the year
Average lows drop to freezing in one month of the year, January. January bottoms out at 43°F (6°C) in daylight, 30°F (-1°C) after dark. At its warmest, in July, Atlantic City runs to 83°F (28°C) in the afternoon and back to 72°F (22°C) by dawn. The gridded 2015-2024 daily record for this location tops out at 97°F (36°C) and bottoms at 0°F (-18°C) - decade extremes, not all-time station records.
Snow falls on roughly 7 days a year, mostly December through March.
Days and nights are about 7°C apart on average - narrower than about 85% of the cities we track. Sunshine averages 9.0 hours a day over the year, peaking in July at 12.1 hours. Four of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is May through June.
More climate facts for Atlantic City
- Hottest month: July - highs near 83°F (28°C)
- Coldest month: January - highs near 43°F (6°C)
- Decade extremes (2015-2024): 97°F (36°C) high · 0°F (-18°C) low
- Wettest month: December (10 rainy days) · Sunniest: July (12.1 h sun/day)
- Climate type: humid subtropical
- Annual swing: 22°C between the average warmest and coolest month · day to night: 7°C
- Snow: about 7 days a year
- Months with freezing average lows: 1
- Average humidity: 72%
Four distinct parts of the year in Atlantic City
Spring (March through May)
Spring in Atlantic City stays on the cool side of mild, with daytime highs averaging 59°F (15°C) and nights around 46°F (8°C); rain falls on around 32 of the 90 days.
Summer (June through August)
Summer in Atlantic City is pleasantly warm, with daytime highs averaging 80°F (27°C) and nights around 69°F (21°C); rain falls on around 35 of the 90 days. Daylight is generous - around 11.6 hours of sun a day.
Fall (September through November)
Fall stays on the cool side of mild here - highs near 66°F (19°C), nights near 55°F (13°C), and expect showers on roughly 26 days across the season.
Winter (December through February)
Winter in Atlantic City is brisk and cold, with daytime highs averaging 45°F (7°C) and nights around 33°F (1°C); rain falls on around 32 of the 90 days, plus about 5 snowy days.
Atlantic City temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.
Choosing a season in Atlantic City
Best time to visit Atlantic City
April to June and August to October is the sweet spot for Atlantic City - the dry season is running but the afternoons are still bearable. Expect 71°F (22°C) in the afternoon and around 10 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in April.
What to pack
Pack for Atlantic City with light clothing for the warm months, a warm jacket and layers for the cooler season and a compact umbrella or rain shell. Even in July, lows of 72°F (22°C) make an extra layer worth the space.
Monthly highs, lows and seasonal change
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 43° | 30° | 10 | 4.2 in | 6.4 h/day | 9.7 h | 34% | 68% |
| February | 45° | 32° | 11 | 3.7 in | 7.0 h/day | 10.7 h | 38% | 69% |
| March | 51° | 37° | 11 | 4.6 in | 8.3 h/day | 11.8 h | 36% | 67% |
| April | 59° | 46° | 10 | 3.8 in | 9.4 h/day | 13.2 h | 33% | 69% |
| May | 67° | 55° | 11 | 4.3 in | 10.2 h/day | 14.3 h | 36% | 76% |
| June | 77° | 65° | 11 | 3.3 in | 11.7 h/day | 14.9 h | 37% | 75% |
| July | 83° | 72° | 12 | 4.1 in | 12.1 h/day | 14.7 h | 39% | 78% |
| August | 82° | 71° | 12 | 3.6 in | 11.1 h/day | 13.7 h | 38% | 77% |
| September | 76° | 66° | 10 | 4.0 in | 9.5 h/day | 12.4 h | 33% | 76% |
| October | 67° | 55° | 9 | 4.9 in | 8.3 h/day | 11.1 h | 29% | 73% |
| November | 56° | 43° | 7 | 3.0 in | 7.6 h/day | 10.0 h | 25% | 68% |
| December | 48° | 36° | 10 | 5.0 in | 6.0 h/day | 9.4 h | 34% | 72% |
Atlantic City from the coldest month to the hottest
Each card shows the average high and low. The bar places that month between Atlantic City's coldest night and warmest afternoon.
January
- Rain
- 10 days
- Sunshine
- 6.4 h
- Daylight
- 9.7 h
- Snow
- 2 days
February
- Rain
- 11 days
- Sunshine
- 7.0 h
- Daylight
- 10.7 h
- Snow
- 2 days
March
- Rain
- 11 days
- Sunshine
- 8.3 h
- Daylight
- 11.8 h
- Snow
- 1 day
April
- Rain
- 10 days
- Sunshine
- 9.4 h
- Daylight
- 13.2 h
May
- Rain
- 11 days
- Sunshine
- 10.2 h
- Daylight
- 14.3 h
June
- Rain
- 11 days
- Sunshine
- 11.7 h
- Daylight
- 14.9 h
July
- Rain
- 12 days
- Sunshine
- 12.1 h
- Daylight
- 14.7 h
August
- Rain
- 12 days
- Sunshine
- 11.1 h
- Daylight
- 13.7 h
September
- Rain
- 10 days
- Sunshine
- 9.5 h
- Daylight
- 12.4 h
October
- Rain
- 9 days
- Sunshine
- 8.3 h
- Daylight
- 11.1 h
November
- Rain
- 7 days
- Sunshine
- 7.6 h
- Daylight
- 10.0 h
December
- Rain
- 10 days
- Sunshine
- 6.0 h
- Daylight
- 9.4 h
Looking for warmer alternatives? Browse warm places by month, or compare Atlantic City's coolest part of the year: January, February, December.
Where Atlantic City sits among other climates
- 27% of the year's precipitation falls in its wettest three months - more evenly spread than almost every other city we track.
These comparisons use the same ten-year window for every city in the dataset.