December weather in The Dalles, OR
The average temperature in The Dalles in December is 36.2°F (31.0°F–41.4°F). Average precipitation: 2.68 inches.
December is a winter month in The Dalles, and is cooler than the annual average of 54.4°F. Daily temperatures swing about 10.4°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 8h 31m. For travel, December is cold.
Avg High
41.4°F
Avg Low
31.0°F
Precipitation
2.68 in
Daylight
8h 31m