Atlantic City, NJ Climate & Monthly Averages
The climate of Atlantic City
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).
Climate quick facts
- 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%
Temperatures through 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.
Rain, sun and snow
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.
How Atlantic City compares
- 27% of the year's precipitation falls in its wettest three months - more evenly spread than almost every other city we track.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| 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 month by month
Average high and low for each month, with the bar showing where it sits in Atlantic City's year (left is the coldest night, right is the 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
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons 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.
Climate questions, answered
How cold does Atlantic City get in winter?
Is Atlantic City humid?
How warm is Atlantic City on average?
How much sun does Atlantic City get?
What should I pack for Atlantic City?
When does Atlantic City drop below freezing?
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.
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.
Atlantic City temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.