Jersey City, NJ Climate & Monthly Averages
Jersey City has a humid subtropical climate. July is the hottest month, averaging 85° by day; January is the coldest at 40°.
Jersey City's climate is a story of contrasts
A 24°C spread between its warmest and coolest months puts Jersey City among the more strongly seasonal places we cover. July averages 85°F (30°C) by day; January averages 40°F (4°C), with nights at 26°F (-3°C).
July
85° by day 69° at nightJanuary
40° by day 26° at nightThe two ends of the year
The wettest month is July (5.5 inches (140 mm) across 13 days) and the driest November. January bottoms out at 40°F (4°C) in daylight, 26°F (-3°C) after dark. At its warmest, in July, Jersey City runs to 85°F (30°C) in the afternoon and back to 69°F (21°C) by dawn. Between the average July and the average January lie 24°C, a wider spread than roughly 81% of the cities we track.
Snow falls on roughly 10 days a year, mostly December through March. The gridded 2015-2024 daily record for this location tops out at 100°F (38°C) and bottoms at -8°F (-22°C) - decade extremes, not all-time station records.
More climate facts for Jersey City
- Hottest month: July - highs near 85°F (30°C)
- Coldest month: January - highs near 40°F (4°C)
- Decade extremes (2015-2024): 100°F (38°C) high · -8°F (-22°C) low
- Wettest month: July (13 rainy days) · Sunniest: July (11.6 h sun/day)
- Climate type: humid subtropical
- Annual swing: 24°C between the average warmest and coolest month · day to night: 9°C
- Snow: about 10 days a year
- Months with freezing average lows: 3
- Average humidity: 71%
Four distinct parts of the year in Jersey City
Spring (March through May)
Through spring, Jersey City is crisp but comfortable: 60°F (16°C) by day, 43°F (6°C) after dark, and rain falls on around 34 of the 90 days, plus about 3 snowy days.
Summer (June through August)
Summer runs hot here - highs near 83°F (28°C), nights near 67°F (19°C), and rain falls on around 36 of the 90 days. Daylight is generous - around 11.2 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
Fall (September through November)
Fall is crisp but comfortable here - highs near 66°F (19°C), nights near 51°F (10°C), and expect showers on roughly 27 days across the season.
Winter (December through February)
Winter in Jersey City is chilly, with daytime highs averaging 42°F (6°C) and nights around 28°F (-2°C); rain falls on around 30 of the 90 days, plus about 8 snowy days.
Jersey 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 Jersey City
Best time to visit Jersey City
May to June and September to October is the sweet spot for Jersey City - warm days, manageable rainfall and plenty of daylight line up. Expect 73°F (23°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 May.
What to pack
Pack for Jersey City with light clothing for the warm months, a heavy insulated coat, hat and gloves for winter and a compact umbrella or rain shell. Even in July, lows of 69°F (21°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 | 40° | 26° | 10 | 3.9 in | 6.1 h/day | 9.6 h | 32% | 67% |
| February | 43° | 26° | 10 | 3.6 in | 6.9 h/day | 10.6 h | 34% | 69% |
| March | 50° | 33° | 10 | 4.5 in | 8.2 h/day | 11.8 h | 33% | 66% |
| April | 60° | 42° | 12 | 4.2 in | 8.8 h/day | 13.2 h | 40% | 67% |
| May | 70° | 53° | 12 | 3.7 in | 9.9 h/day | 14.4 h | 37% | 71% |
| June | 79° | 62° | 11 | 3.9 in | 11.1 h/day | 15.1 h | 35% | 71% |
| July | 85° | 69° | 13 | 5.5 in | 11.6 h/day | 14.8 h | 43% | 73% |
| August | 83° | 68° | 12 | 4.5 in | 10.9 h/day | 13.8 h | 40% | 74% |
| September | 77° | 62° | 10 | 4.7 in | 9.1 h/day | 12.4 h | 32% | 75% |
| October | 66° | 51° | 9 | 4.9 in | 7.8 h/day | 11.0 h | 29% | 74% |
| November | 54° | 39° | 9 | 3.0 in | 7.1 h/day | 9.8 h | 29% | 70% |
| December | 45° | 32° | 11 | 4.5 in | 5.6 h/day | 9.3 h | 35% | 73% |
Jersey City from the coldest month to the hottest
Each card shows the average high and low. The bar places that month between Jersey City's coldest night and warmest afternoon.
January
- Rain
- 10 days
- Sunshine
- 6.1 h
- Daylight
- 9.6 h
- Snow
- 3 days
February
- Rain
- 10 days
- Sunshine
- 6.9 h
- Daylight
- 10.6 h
- Snow
- 3 days
March
- Rain
- 10 days
- Sunshine
- 8.2 h
- Daylight
- 11.8 h
- Snow
- 2 days
April
- Rain
- 12 days
- Sunshine
- 8.8 h
- Daylight
- 13.2 h
May
- Rain
- 12 days
- Sunshine
- 9.9 h
- Daylight
- 14.4 h
June
- Rain
- 11 days
- Sunshine
- 11.1 h
- Daylight
- 15.1 h
July
- Rain
- 13 days
- Sunshine
- 11.6 h
- Daylight
- 14.8 h
August
- Rain
- 12 days
- Sunshine
- 10.9 h
- Daylight
- 13.8 h
September
- Rain
- 10 days
- Sunshine
- 9.1 h
- Daylight
- 12.4 h
October
- Rain
- 9 days
- Sunshine
- 7.8 h
- Daylight
- 11.0 h
November
- Rain
- 9 days
- Sunshine
- 7.1 h
- Daylight
- 9.8 h
December
- Rain
- 11 days
- Sunshine
- 5.6 h
- Daylight
- 9.3 h
- Snow
- 2 days
Looking for warmer alternatives? Browse warm places by month, or compare Jersey City's coolest part of the year: January, February, December.
Where Jersey City sits among other climates
- 29% of the year's precipitation falls in its wettest three months - more evenly spread than all but 9% of the 3496 cities we track.
These comparisons use the same ten-year window for every city in the dataset.