Illinois · county areal climate 1951–2025
Jo Daviess County, IL
A 48.6°F / 38.2" normal · 2025 ran +0.5°F vs normal.
2026 so far · through Aug 29: This area is running
+1.7°F (52.0°F) vs the 1996–2025 to-date normal — the
6th warmest start of 76 years. Precipitation
101% of normal.
U.S. year-to-date → Normal (1996–2025)
48.6°F
annual mean · 38.2" precipitation
2025 vs Normal
+0.5°F
49.1°F · 31.4" (82% of normal)
Warmest Year
51.5°F
2012 · coldest 44.1°F (1951)
Wettest Year
53.2in
2018 · driest 21.0" (1988)
Hottest Day
101.3°F
Jul 7 · 2012
Coldest Day
-31.6°F
Jan 31 · 2019
Biggest Rain Day
5.56in
Jul 23 · 2010
Record
1951–2025
75 complete years · NOAA nClimGrid
—— 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.