South Dakota · county areal climate 1951–2025

Lyman County, SD

A 21.0" / 48.1°F normal · 2025 ran 101% of normal precipitation.
2026 so far · through Jul 25: This area is at 79% (10.32") of the 1996–2025 to-date normal — the 18th driest start of 76 years. Temperature +3.1°F vs normal. U.S. year-to-date →

Normal (1996–2025)

21.0in
annual precipitation · 48.1°F

2025 vs Normal

101%
21.2" · 49.3°F (+1.2 vs normal)

Wettest Year

33.8in
2019

Driest Year

9.2in
1976

Biggest Rain Day

2.81in
Oct 13 · 2023

Warmest Year

51.3°F
2012

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

21°
J
24°
F
35°
M
46°
A
58°
M
69°
J
76°
J
73°
A
65°
S
50°
O
36°
N
24°
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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