New Jersey · county areal climate 1951–2025

Mercer County, NJ

A 47.5" / 54.5°F normal · 2025 ran 80% of normal precipitation.
2026 so far · through Jul 25: This area is at 73% (19.32") of the 1996–2025 to-date normal — the 9th driest start of 76 years. Temperature -0.4°F vs normal. U.S. year-to-date →

Normal (1996–2025)

47.5in
annual precipitation · 54.5°F

2025 vs Normal

80%
37.8" · 54.0°F (-0.5 vs normal)

Wettest Year

64.5in
2018

Driest Year

29.9in
1965

Biggest Rain Day

7.77in
Aug 28 · 2011

Warmest Year

56.2°F
2012

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

32°
J
35°
F
42°
M
52°
A
62°
M
71°
J
76°
J
74°
A
68°
S
56°
O
46°
N
37°
D
—— normal temperature (°F) · ▮ normal precipitation (in) · 1996–2025
Areal nClimGrid averages (NOAA/NCEI) over the whole area — an average across the region, not a single station. Separate from the station records.

Nearby

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