December weather in Chatham, NY
The average temperature in Chatham in December is 31.0°F (22.9°F–39.1°F). Average precipitation: 2.85 inches.
December is a winter month in Chatham, and is cooler than the annual average of 49.5°F. Daily temperatures swing about 16.2°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 8h 55m. For travel, December is cold.
Avg High
39.1°F
Avg Low
22.9°F
Precipitation
2.85 in
Daylight
8h 55m