Washington · county areal climate 1951–2025
San Juan County, WA
A 50.8°F / 29.0" normal · 2025 ran +0.9°F vs normal.
2026 so far · through Jul 9: This area is running
+1.6°F (50.4°F) vs the 1996–2025 to-date normal — the
5th warmest start of 76 years. Precipitation
101% of normal.
U.S. year-to-date → Normal (1996–2025)
50.8°F
annual mean · 29.0" precipitation
2025 vs Normal
+0.9°F
51.7°F · 29.6" (102% of normal)
Warmest Year
52.4°F
2015 · coldest 47.0°F (1955)
Wettest Year
37.2in
1997 · driest 18.8" (1952)
Hottest Day
92.5°F
Jun 27 · 2021
Coldest Day
5.0°F
Dec 16 · 1964
Biggest Rain Day
1.87in
Nov 8 · 1995
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.