Idaho · county areal climate 1951–2025

Lemhi County, ID

A 40.1°F / 20.3" normal · 2025 ran +2°F vs normal.
2026 so far · through Jul 10: This area is running +3.5°F (40.2°F) vs the 1996–2025 to-date normal — the 2nd warmest start of 76 years. Precipitation 87% of normal. U.S. year-to-date →

Normal (1996–2025)

40.1°F
annual mean · 20.3" precipitation

2025 vs Normal

+2°F
42.1°F · 22.1" (109% of normal)

Warmest Year

42.1°F
2015 · coldest 36.1°F (1985)

Wettest Year

28.6in
1995 · driest 14.0" (1966)

Hottest Day

94.4°F
Jul 13 · 2002

Coldest Day

-34.4°F
Feb 1 · 1956

Biggest Rain Day

1.83in
Dec 22 · 1964

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

21°
J
23°
F
31°
M
37°
A
46°
M
54°
J
63°
J
61°
A
53°
S
40°
O
29°
N
21°
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

← All Idaho countiesU.S. overview
Coldest Since · Browse all states · See where it's hottest → hottestsince.com
part of Weather Trader · supported by Substack Subscribers · data: NWS NDFD forecast + NOAA/ACIS ThreadEx records · updated 2026-07-13 14:12Z
© 2026 Weather Trader · All rights reserved