South Dakota · county areal climate 1951–2025
Bon Homme County, SD
A 48.8°F / 26.0" normal · 2025 ran +1°F vs normal.
2026 so far · through Jul 9: This area is running
+3.4°F (48.1°F) vs the 1996–2025 to-date normal — the
4th warmest start of 76 years. Precipitation
57% of normal.
U.S. year-to-date → Normal (1996–2025)
48.8°F
annual mean · 26.0" precipitation
2025 vs Normal
+1°F
49.8°F · 27.8" (107% of normal)
Warmest Year
53.1°F
2012 · coldest 43.5°F (1951)
Wettest Year
36.7in
2018 · driest 14.0" (1974)
Hottest Day
107.6°F
Jun 22 · 1988
Coldest Day
-29.8°F
Jan 29 · 1966
Biggest Rain Day
3.2in
Sep 4 · 1999
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.