Montana · county areal climate 1951–2025
Yellowstone County, MT
A 46.9°F / 14.5" normal · 2025 ran +0.8°F vs normal.
2026 so far · through Jul 10: This area is running
+4.1°F (47.4°F) vs the 1996–2025 to-date normal — the
2nd warmest start of 76 years. Precipitation
68% of normal.
U.S. year-to-date → Normal (1996–2025)
46.9°F
annual mean · 14.5" precipitation
2025 vs Normal
+0.8°F
47.7°F · 19.1" (132% of normal)
Warmest Year
49.4°F
2012 · coldest 41.5°F (1951)
Wettest Year
23.5in
1978 · driest 7.8" (2012)
Hottest Day
107.3°F
Jul 15 · 2002
Coldest Day
-36.2°F
Dec 24 · 1983
Biggest Rain Day
2.15in
May 18 · 1978
Record
1951–2025
75 complete years · NOAA nClimGrid
—— 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.