KAPC temperature trend
Napa County Airport
Temperature and dew point over time. The gap between them is what decides fog, and the temperature itself is what decides your density altitude and takeoff run.
Warmest
37 °C
Sep 9, 2026
Coldest
8 °C
Sep 28, 2026
Mean temperature
17.6 °C
Mean dew point
11.9 °C
399 archived observations · Archive updated continuously
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