South Dakota · county areal climate 1951–2025
Hamlin County, SD
A 43.6°F / 25.1" normal · 2025 ran +1.6°F vs normal.
2026 so far · through Jul 9: This area is running
+2.8°F (41.9°F) vs the 1996–2025 to-date normal — the
9th warmest start of 76 years. Precipitation
78% of normal.
U.S. year-to-date → Normal (1996–2025)
43.6°F
annual mean · 25.1" precipitation
2025 vs Normal
+1.6°F
45.2°F · 29.2" (116% of normal)
Warmest Year
47.3°F
1987 · coldest 38.6°F (1951)
Wettest Year
38.0in
2019 · driest 11.1" (1976)
Hottest Day
102.6°F
Jul 10 · 1976
Coldest Day
-37.9°F
Feb 9 · 1994
Biggest Rain Day
3.75in
Aug 19 · 2015
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.