KPDX temperature trend
Portland International 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
31 °C
Sep 9, 2026
Coldest
9 °C
Sep 26, 2026
Mean temperature
16.9 °C
Mean dew point
10.4 °C
526 archived observations · Archive updated continuously
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