Montana · county areal climate 1951–2025

Lewis and Clark County, MT

A 21.8" / 41.6°F normal · 2025 ran 102% of normal precipitation.
2026 so far · through Jul 25: This area is at 99% (13.44") of the 1996–2025 to-date normal — the 36th driest start of 76 years. Temperature +2.9°F vs normal. U.S. year-to-date →

Normal (1996–2025)

21.8in
annual precipitation · 41.6°F

2025 vs Normal

102%
22.2" · 42.9°F (+1.3 vs normal)

Wettest Year

37.6in
1975

Driest Year

14.0in
1960

Biggest Rain Day

2.4in
Apr 30 · 1951

Warmest Year

43.8°F
2015

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

24°
J
24°
F
32°
M
39°
A
47°
M
55°
J
64°
J
62°
A
54°
S
42°
O
31°
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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