New Jersey has an average annual temperature of
53.4°F
(across all 34 cities) with approximately
1181 mm of annual precipitation
and average humidity of 79%.
The warmest city is Camden
with average July highs of 94.1°F,
while Bloomfield
is the coldest with average January lows of 0.9°F.
This page covers 45 years of NASA POWER climate data (1981–2025)
including temperature, rainfall, humidity, wind speed, and solar radiation.
Jul is typically the warmest month across New Jersey with average highs around
92.3°F, while
Jan is the coldest with average lows near
6.4°F.
Jul is the wettest month with approximately
118 mm of rainfall on average.
Month
Max Temp
Min Temp
Avg Temp
Rain (mm)
Humidity
Wind (m/s)
Solar (kWh/m²)
Jan
54.9°F
6.4°F
30.7°F
87
85%
2.2
1.90
Feb
55.8°F
9.1°F
32.5°F
76
84%
2.3
2.80
Mar
65.3°F
17.2°F
41.4°F
105
81%
2.2
3.80
Apr
75.4°F
27.9°F
51.6°F
102
79%
1.9
4.80
May
82.2°F
38.3°F
60.3°F
105
80%
1.6
5.40
Jun
88.3°F
48.2°F
68.4°F
102
78%
1.4
6.00
Jul
92.3°F
57.2°F
74.8°F
118
74%
1.3
5.90
Aug
91.2°F
55.6°F
73.4°F
109
73%
1.3
5.20
Sep
87.8°F
46°F
66.9°F
102
74%
1.5
4.30
Oct
78.8°F
34°F
56.5°F
99
77%
1.7
3.10
Nov
68.5°F
24.4°F
46.6°F
90
80%
1.8
2.20
Dec
59.2°F
14.9°F
37°F
105
84%
2.0
1.70
📈 New Jersey Yearly Climate Trends
🌡️ Annual Temperature Trend
State-wide avg annual high & low · Last 10 years
📈 New Jersey Long-Term Climate Trends (1981–2025)
This chart shows how New Jersey's average temperatures have shifted across 45 years.
Use the range buttons to focus on recent decades or view the full historical record.
Data is averaged across all 34 cities in the state.
🌧️ Annual Precipitation Trend
State-wide avg annual precipitation · Last 10 years · mm/year
🔗 Explore Cities in New Jersey
Browse detailed weather history, monthly averages, and 45-year climate trends for every city in New Jersey.
Hoboken is the wettest city in New Jersey with approximately 1236 mm of annual precipitation on average. View Hoboken weather history →
What is the warmest month in New Jersey?▼
Jul is the warmest month across New Jersey, with state-wide average highs of 92.3°F and average lows of 57.2°F.
How many cities in New Jersey have weather data?▼
TownPillar has historical weather data for 34 cities in New Jersey, covering 45 years of NASA POWER climate records from 1981 to 2025.
Which month has the most sunshine in New Jersey?▼
Jun is the sunniest month across New Jersey with an average solar radiation of 6.00 kWh/m²/day state-wide. This solar radiation data from NASA POWER is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability.
Where does this climate data come from?▼
All data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis data. It includes monthly temperature, precipitation, humidity, wind speed, and solar radiation at 0.5° × 0.625° spatial resolution.
📚 Data Source
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources). Data covers 45 years (1981–2025) across 34 cities in New Jersey at monthly temporal resolution.