New Jersey climate by month

3 cities · NOAA 1991-2020 normals

January highs across New Jersey range from 40°F in Paterson to 43°F in Cape May; July highs from 86°F in Cape May to 87°F in Paterson. The most common best months across these cities are May.

New Jersey weather month by month

Average of the 3 New Jersey cities on this site, computed from NOAA's unrounded values (so it can differ by a degree from averaging the rounded city figures); individual cities differ, sometimes a lot.

Month	High	Low	Wet days	Snow
January	41°F	27°F	11	7.5 in
February	44°F	28°F	10	8.6 in
March	51°F	35°F	11	4.4 in
April	62°F	44°F	11	0.3 in
May	72°F	54°F	11	0.0 in
June	81°F	63°F	10	0.0 in
July	86°F	69°F	10	0.0 in
August	85°F	68°F	10	0.0 in
September	78°F	61°F	9	0.0 in
October	67°F	49°F	10	0.1 in
November	56°F	39°F	9	0.4 in
December	46°F	32°F	11	4.1 in

Regional differences

Warmest winterCape May: January high 43°F
Coolest summerCape May: July high 86°F
Most wet daysPaterson: 124 a year
Fewest wet daysNewark: 123 a year
Most snowNewark: 31.5 in a year

Warmest and coolest New Jersey city each month

Month	Warmest	Coolest	Best month for
January	Cape May 43°F	Paterson 40°F	–
February	Cape May 45°F	Paterson 43°F	–
March	Cape May 52°F	Paterson 51°F	–
April	Newark 63°F	Cape May 62°F	–
May	Paterson 73°F	Cape May 71°F	3 cities
June	Paterson 82°F	Cape May 80°F	–
July	Paterson 87°F	Cape May 86°F	–
August	Paterson 85°F	Cape May 84°F	–
September	Cape May 79°F	Newark 78°F	–
October	Cape May 68°F	Newark 66°F	–
November	Cape May 57°F	Newark 55°F	–
December	Cape May 48°F	Newark 45°F	–

By normal daily high. "Best month for": how many of the 3 cities have it among their best months by our comfort score.

Frost and humidity across New Jersey

Earliest typical last frostCape May: Apr 1
Latest typical last frostPaterson: Apr 3
Most muggy daysCape May: 62 a year
Fewest muggy daysPaterson: 36 a year

All New Jersey cities

City	Jan high	Jul high	Wet days/yr	Snow/yr	Best months
Cape May	43°F	86°F	124	14.8 in	May
Newark	40°F	87°F	123	31.5 in	May
Paterson	40°F	87°F	124	29.8 in	May

Also covered: Elizabeth (see Newark), Jersey City (see Newark). These cities use the same weather stations as the city named.

Frost dates for New Jersey