Iowa · county areal climate 1951–2025
Plymouth County, IA
A 48.1°F / 29.4" normal · 2025 ran +1.3°F vs normal.
2026 so far · through Jul 9: This area is running
+3.2°F (47.4°F) vs the 1996–2025 to-date normal — the
4th warmest start of 76 years. Precipitation
73% of normal.
U.S. year-to-date → Normal (1996–2025)
48.1°F
annual mean · 29.4" precipitation
2025 vs Normal
+1.3°F
49.4°F · 31.2" (106% of normal)
Warmest Year
51.8°F
2012 · coldest 43.5°F (1951)
Wettest Year
40.8in
1951 · driest 14.4" (1976)
Hottest Day
104.4°F
Jun 22 · 1988
Coldest Day
-28.1°F
Jan 19 · 1970
Biggest Rain Day
4.74in
Jul 17 · 1996
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.