| < December >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in Seattle/ Tacoma, Wa in December is cool at 4.7 °C (40.46 °F).
- Afternoons can be a little cool with average high temperatures reaching 7.3 °C (45.1 °F).
- Overnight temperatures are generally very cool with an average low of 2.1 °C (35.8 °F).
- The range/ variation of diurnal average temperatures in December is 5.2 °C (9.4 °F).
- The weather in December is a little damp. Some 150.1mm (5.9in) of H2O is discharged.
- The shortest day is 8:26 long and the longest day is 8:42 long with an average length of 8:30.
Check the distance to and compare the Seattle/ Tacoma, Wa December averages with somewhere beginning with:
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Weather Trend Graph for December in Seattle/ Tacoma, Wa, Usa
Navigate to December Weather in Locations Surrounding Seattle/ Tacoma, Wa:
- Abbotsford, Bc, Canada - 175.2 kms (108.9 miles) N
- Blaine, Wa, Usa - 174.8 kms (108.6 miles) N
- Gladman Point, Nt, Canada - 185.5 kms (115.3 miles) NW
- Victoria (Airport), Bc, Canada - 157.2 kms (97.7 miles) NNW
- Victoria (Marine), Bc, Canada - 148.8 kms (92.5 miles) NW
- Port Angeles, Wa, Usa - 80.5 kms (50 miles) NW
- Port Townsend, Wa, Usa - 80.5 kms (50 miles) NW
- Seattle, Washington, Usa - 17.5 kms (10.9 miles) N
- Centralia, Wa, Usa - 72.8 kms (45.2 miles) SW
- Aberdeen, Wa, Usa - 126.1 kms (78.3 miles) WSW
- Olympia, Wa, Usa - 70.3 kms (43.7 miles) SW
- Astoria/ Clatsop, Or, Usa - 188.2 kms (116.9 miles) SW