Montana · county areal climate 1951–2025

Gallatin County, MT

A 24.0" / 40.4°F normal · 2025 ran 100% of normal precipitation.
2026 so far · through Jul 25: This area is at 86% (12.8") of the 1996–2025 to-date normal — the 13th driest start of 76 years. Temperature +3.8°F vs normal. U.S. year-to-date →

Normal (1996–2025)

24.0in
annual precipitation · 40.4°F

2025 vs Normal

100%
23.9" · 42.3°F (+1.9 vs normal)

Wettest Year

33.0in
1975

Driest Year

18.8in
2001

Biggest Rain Day

1.81in
Jun 19 · 1979

Warmest Year

42.4°F
2015

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

22°
J
23°
F
31°
M
38°
A
46°
M
55°
J
63°
J
61°
A
53°
S
41°
O
30°
N
22°
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 Montana countiesU.S. overview
WettestSince · browse by state · precipitation & snowfall records · NOAA/RCC-ACIS ThreadEx gauge record · part of Weather Trader · supported by Substack Subscribers
© 2026 Weather Trader · All rights reserved