Illinois · county areal climate 1951–2025

LaSalle County, IL

A 36.4" / 50.7°F normal · 2025 ran 81% of normal precipitation.
2026 so far · through Jul 25: This area is at 105% (23.08") of the 1996–2025 to-date normal — the 25th wettest start of 76 years. Temperature +1.9°F vs normal. U.S. year-to-date →

Normal (1996–2025)

36.4in
annual precipitation · 50.7°F

2025 vs Normal

81%
29.6" · 51.4°F (+0.7 vs normal)

Wettest Year

52.6in
2019

Driest Year

22.3in
1956

Biggest Rain Day

3.64in
Sep 28 · 2019

Warmest Year

53.9°F
2012

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

23°
J
27°
F
39°
M
50°
A
61°
M
71°
J
74°
J
72°
A
66°
S
54°
O
40°
N
29°
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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