Idaho · county areal climate 1951–2025
Washington County, ID
A 48.6°F / 20.5" normal · 2025 ran +2°F vs normal.
2026 so far · through Jul 9: This area is running
+3.2°F (48.2°F) vs the 1996–2025 to-date normal — the
3rd warmest start of 76 years. Precipitation
84% of normal.
U.S. year-to-date → Normal (1996–2025)
48.6°F
annual mean · 20.5" precipitation
2025 vs Normal
+2°F
50.6°F · 19.0" (93% of normal)
Warmest Year
51.0°F
2015 · coldest 43.3°F (1985)
Wettest Year
31.0in
1998 · driest 13.1" (2013)
Hottest Day
105.4°F
Jul 12 · 2002
Coldest Day
-21.4°F
Jan 22 · 1962
Biggest Rain Day
1.86in
Aug 22 · 2023
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.