Home › Cities › United States › New Jersey › Atlantic City

Atlantic City, New Jersey climate

Cfa Humid subtropical

Atlantic City has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 80°F, while the coldest is January averaging around 30°F at night. Precipitation is fairly even year-round, totalling about 44 inches.

☀️ Summers

Warm

Highs near 80°F in July.

About 6 days a year above 90 °F

❄️ Winters

Cold

Lows near 30°F in January.

About 56 freezing nights a year

🌧️ Rain

Wet

About 44 in of rain a year.

Wettest in March

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+0.7 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Atlantic City climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	42	43	48	57	66	75	80	79	74	65	55	47
Avg temp (°F)	36	37	43	51	60	70	75	75	69	59	49	41
Avg low (°F)	30	31	37	46	55	65	71	70	65	54	43	35
Precipitation (in)	3.1	3.3	4.3	3.4	3.1	3.2	3.8	4.1	3.6	4.3	3.4	4.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	42	43	48	57	66	75
Avg temp (°F)	36	37	43	51	60	70
Avg low (°F)	30	31	37	46	55	65
Precipitation (in)	3.1	3.3	4.3	3.4	3.1	3.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	80	79	74	65	55	47
Avg temp (°F)	75	75	69	59	49	41
Avg low (°F)	71	70	65	54	43	35
Precipitation (in)	3.8	4.1	3.6	4.3	3.4	4.2

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	9	11	11	11	9	9	8	8	9	9	11
Days with high ≥ 90°F (days)	—	—	—	—	0.2	0.9	3	1	0.3	0.0	—	—
Days with low ≤ 32°F (days)	18	15	8	0.4	—	—	—	—	—	—	3	12

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	10	9	11	11	11	9
Days with high ≥ 90°F (days)	—	—	—	—	0.2	0.9
Days with low ≤ 32°F (days)	18	15	8	0.4	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	9	8	8	9	9	11
Days with high ≥ 90°F (days)	3	1	0.3	0.0	—	—
Days with low ≤ 32°F (days)	—	—	—	—	3	12

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	63	62	61	61	61	58	55	53	53	54	59	63
Clear days (≤ 30% cloud)	5	5	6	6	6	6	7	8	9	9	7	5
Partly cloudy days (30–70%)	11	10	11	10	12	12	12	12	10	10	11	11
Cloudy days (≥ 70%)	14	13	14	14	14	12	11	11	11	12	12	14
Relative humidity (%)	82	80	80	80	82	82	80	79	78	77	78	81
Wind speed (mph)	10.8	10.5	10.4	9.6	8.1	7.3	6.9	7.0	8.1	9.3	10.0	10.4

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	63	62	61	61	61	58
Clear days (≤ 30% cloud)	5	5	6	6	6	6
Partly cloudy days (30–70%)	11	10	11	10	12	12
Cloudy days (≥ 70%)	14	13	14	14	14	12
Relative humidity (%)	82	80	80	80	82	82
Wind speed (mph)	10.8	10.5	10.4	9.6	8.1	7.3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	55	53	53	54	59	63
Clear days (≤ 30% cloud)	7	8	9	9	7	5
Partly cloudy days (30–70%)	12	12	10	10	11	11
Cloudy days (≥ 70%)	11	11	11	12	12	14
Relative humidity (%)	80	79	78	77	78	81
Wind speed (mph)	6.9	7.0	8.1	9.3	10.0	10.4

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Atlantic City Marina (NOAA GHCN station USW00013724), about 2 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →