KDEC temperature trend
Decatur 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 15, 2026
Coldest
12 °C
Sep 14, 2026
Mean temperature
23.6 °C
Mean dew point
18.2 °C
426 archived observations · Archive updated continuously
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