Idaho · county areal climate 1951–2025
Boise County, ID
A 44.2°F / 30.4" normal · 2025 ran +1.4°F vs normal.
2026 so far · through Jul 10: This area is running
+2.4°F (43.1°F) vs the 1996–2025 to-date normal — the
4th warmest start of 76 years. Precipitation
85% of normal.
U.S. year-to-date → Normal (1996–2025)
44.2°F
annual mean · 30.4" precipitation
2025 vs Normal
+1.4°F
45.6°F · 33.0" (109% of normal)
Warmest Year
46.3°F
2015 · coldest 40.1°F (1985)
Wettest Year
49.4in
1996 · driest 19.4" (2013)
Hottest Day
100.3°F
Jul 13 · 2002
Coldest Day
-26.6°F
Jan 22 · 1962
Biggest Rain Day
2.96in
Dec 22 · 1955
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.