South Dakota · county areal climate 1951–2025
Yankton County, SD
A 48.4°F / 26.7" normal · 2025 ran +1.2°F vs normal.
2026 so far · through Jul 9: This area is running
+3.7°F (48.0°F) vs the 1996–2025 to-date normal — the
3rd warmest start of 76 years. Precipitation
57% of normal.
U.S. year-to-date → Normal (1996–2025)
48.4°F
annual mean · 26.7" precipitation
2025 vs Normal
+1.2°F
49.6°F · 25.2" (95% of normal)
Warmest Year
52.4°F
2012 · coldest 43.2°F (1951)
Wettest Year
39.5in
2018 · driest 14.8" (1980)
Hottest Day
107.6°F
Jun 22 · 1988
Coldest Day
-32.2°F
Jan 19 · 1970
Biggest Rain Day
3.53in
Jun 21 · 2018
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.