Jersey City, NJ Climate & Monthly Averages
The climate of Jersey City
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).
Climate quick facts
- 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%
Temperatures through 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.
Rain, sun and snow
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.
How Jersey City compares
- 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.
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 | Humidity |
|---|---|---|---|---|---|---|
| January | 40° | 26° | 10 | 3.9 in | 6.1 h/day | 67% |
| February | 43° | 26° | 10 | 3.6 in | 6.9 h/day | 69% |
| March | 50° | 33° | 10 | 4.5 in | 8.2 h/day | 66% |
| April | 60° | 42° | 12 | 4.2 in | 8.8 h/day | 67% |
| May | 70° | 53° | 12 | 3.7 in | 9.9 h/day | 71% |
| June | 79° | 62° | 11 | 3.9 in | 11.1 h/day | 71% |
| July | 85° | 69° | 13 | 5.5 in | 11.6 h/day | 73% |
| August | 83° | 68° | 12 | 4.5 in | 10.9 h/day | 74% |
| September | 77° | 62° | 10 | 4.7 in | 9.1 h/day | 75% |
| October | 66° | 51° | 9 | 4.9 in | 7.8 h/day | 74% |
| November | 54° | 39° | 9 | 3.0 in | 7.1 h/day | 70% |
| December | 45° | 32° | 11 | 4.5 in | 5.6 h/day | 73% |
Jersey City month by month
Jersey City weather in January
January brings highs around 40°F (4°C), lows near 26°F (-3°C), about 10 wet days and roughly 3 snowy days - typically the coldest month of the year in Jersey City.
Jersey City weather in February
February brings highs around 43°F (6°C), lows near 26°F (-3°C), about 10 wet days and roughly 3 snowy days.
Jersey City weather in March
March brings highs around 50°F (10°C), lows near 33°F (0°C), about 10 wet days and roughly 2 snowy days.
Jersey City weather in April
April brings highs around 60°F (16°C), lows near 42°F (6°C), about 12 wet days.
Jersey City weather in May
May brings highs around 70°F (21°C), lows near 53°F (12°C), about 12 wet days.
Jersey City weather in June
June brings highs around 79°F (26°C), lows near 62°F (17°C), about 11 wet days.
Jersey City weather in July
July brings highs around 85°F (30°C), lows near 69°F (21°C), about 13 wet days - typically the hottest month and the wettest month and the sunniest month of the year in Jersey City.
Jersey City weather in August
August brings highs around 83°F (28°C), lows near 68°F (20°C), about 12 wet days.
Jersey City weather in September
September brings highs around 77°F (25°C), lows near 62°F (16°C), about 10 wet days.
Jersey City weather in October
October brings highs around 66°F (19°C), lows near 51°F (11°C), about 9 wet days.
Jersey City weather in November
November brings highs around 54°F (12°C), lows near 39°F (4°C), about 9 wet days - typically the driest month of the year in Jersey City.
Jersey City weather in December
December brings highs around 45°F (7°C), lows near 32°F (0°C), about 11 wet days and roughly 2 snowy days.
Seasons 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.
Climate questions, answered
Does it freeze in Jersey City?
Is Jersey City hot in summer?
Is Jersey City cold in winter?
How much sun does Jersey City get?
What should I wear in Jersey City?
How many rainy days does Jersey City get in a year?
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.
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.
Jersey City temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.