South Dakota · county areal climate 1951–2025

Mellette County, SD

A 20.4" / 48.7°F normal · 2025 ran 103% of normal precipitation.
2026 so far · through Jul 25: This area is at 76% (9.8") of the 1996–2025 to-date normal — the 12th driest start of 76 years. Temperature +3.7°F vs normal. U.S. year-to-date →

Normal (1996–2025)

20.4in
annual precipitation · 48.7°F

2025 vs Normal

103%
21.0" · 50.2°F (+1.5 vs normal)

Wettest Year

30.8in
2019

Driest Year

10.7in
1974

Biggest Rain Day

3.02in
Oct 13 · 2023

Warmest Year

52.1°F
2012

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

24°
J
26°
F
36°
M
46°
A
57°
M
68°
J
76°
J
73°
A
65°
S
50°
O
37°
N
26°
D
—— 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.

Nearby

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