Birch Bay Weather in December
What's the weather like in Birch Bay (Washington) in December 2024?
The climate in Birch Bay during December can be summarized as cool and wet.
December is in the winter in Birch Bay and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cold 7°C (44°F), whilst at night 1°C (34°F) is normal.
| Daytime temperature | 6.5°C 43.6°F |
|---|---|
| Nightly temperature | 1°C 33.7°F |
| Average temperature | 3.7°C 38.7°F |
| Daily sunshine | 2.1 hrs |
| Avg rainfall | 139 mm 5.5 ins |
| Rainy days | 20 days |
| Sea temperature | 8.3°C 46.9°F |
| Humidity | 84% |
| Windspeed | 15.5kph 10 mph |
On average December is the wettest month of the year in Birch Bay with around 139mm 5.5 inches of rain making it a wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.1 hours of sunshine per day.
December temperatures in Birch Bay
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Birch Bay in December 2024.
Other monthly averages
Best places to visit in December
Birch Bay weather stats
| Hottest month: | August | 21.4°C 70.5°F |
|---|---|---|
| Driest month: | July | 32mm 1.3ins |
| Sunniest month: | August | 9.1hrs |
| Coldest month: | January | 5.9°C 42.6°F |
| Wettest month: | December | 139mm 5.5ins |
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