South Dakota · county areal climate 1951–2025
Custer County, SD
A 46.5°F / 18.7" normal · 2025 ran +1°F vs normal.
2026 so far · through Jul 10: This area is running
+4°F (46.6°F) vs the 1996–2025 to-date normal — the
2nd warmest start of 76 years. Precipitation
59% of normal.
U.S. year-to-date → Normal (1996–2025)
46.5°F
annual mean · 18.7" precipitation
2025 vs Normal
+1°F
47.5°F · 16.8" (90% of normal)
Warmest Year
49.4°F
2012 · coldest 41.9°F (1951)
Wettest Year
27.3in
1998 · driest 10.5" (1960)
Hottest Day
104.4°F
Jul 16 · 2006
Coldest Day
-32.2°F
Dec 23 · 1983
Biggest Rain Day
2.47in
Jun 15 · 1976
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.