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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 27°C, while the coldest is January averaging around −1°C at night. Precipitation is fairly even year-round, totalling about 1108 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsAtlantic City climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 5 | 6 | 9 | 14 | 19 | 24 | 27 | 26 | 23 | 18 | 13 | 8 |
| Avg temp (°C) | 2 | 3 | 6 | 11 | 16 | 21 | 24 | 24 | 21 | 15 | 9 | 5 |
| Avg low (°C) | −1 | 0 | 3 | 8 | 13 | 18 | 21 | 21 | 18 | 12 | 6 | 2 |
| Precipitation (mm) | 78 | 83 | 108 | 85 | 79 | 82 | 95 | 105 | 90 | 108 | 87 | 106 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 5 | 6 | 9 | 14 | 19 | 24 |
| Avg temp (°C) | 2 | 3 | 6 | 11 | 16 | 21 |
| Avg low (°C) | −1 | 0 | 3 | 8 | 13 | 18 |
| Precipitation (mm) | 78 | 83 | 108 | 85 | 79 | 82 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 26 | 23 | 18 | 13 | 8 |
| Avg temp (°C) | 24 | 24 | 21 | 15 | 9 | 5 |
| Avg low (°C) | 21 | 21 | 18 | 12 | 6 | 2 |
| Precipitation (mm) | 95 | 105 | 90 | 108 | 87 | 106 |
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 ≥ 32°C (days) | — | — | — | — | 0.2 | 0.9 | 3 | 1 | 0.3 | 0.0 | — | — |
| Days with low ≤ 0°C (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 ≥ 32°C (days) | — | — | — | — | 0.2 | 0.9 |
| Days with low ≤ 0°C (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 ≥ 32°C (days) | 3 | 1 | 0.3 | 0.0 | — | — |
| Days with low ≤ 0°C (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 (m/s) | 4.8 | 4.7 | 4.6 | 4.3 | 3.6 | 3.3 | 3.1 | 3.1 | 3.6 | 4.2 | 4.5 | 4.7 |
| 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 (m/s) | 4.8 | 4.7 | 4.6 | 4.3 | 3.6 | 3.3 |
| 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 (m/s) | 3.1 | 3.1 | 3.6 | 4.2 | 4.5 | 4.7 |
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.