Illinois · county areal climate 1951–2025

Jersey County, IL

A 40.7" / 55.3°F normal · 2025 ran 83% of normal precipitation.
2026 so far · through Jul 25: This area is at 94% (23.16") of the 1996–2025 to-date normal — the 42nd driest start of 76 years. Temperature +2.1°F vs normal. U.S. year-to-date →

Normal (1996–2025)

40.7in
annual precipitation · 55.3°F

2025 vs Normal

83%
33.8" · 56.1°F (+0.8 vs normal)

Wettest Year

58.4in
2008

Driest Year

24.8in
1953

Biggest Rain Day

4.28in
Dec 27 · 2015

Warmest Year

58.1°F
2012

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

30°
J
34°
F
45°
M
55°
A
65°
M
74°
J
78°
J
76°
A
69°
S
57°
O
45°
N
35°
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.

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