Sedro-Woolley (WA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Sedro-Woolley.
Climate overview of Sedro-Woolley
Sedro-Woolley, Washington State, United States of America, sees big temperature differences between seasons, with July peaking at 24°C (75°F) and December dropping to 7°C (45°F).
Rain/snowfall is high, totalling around 1331 mm (52 in) per year. November is the wettest month and July the driest. The city also experiences a distinct dry season from July to August, with warm summers and cold winters. July is the sunniest month, averaging 9.4 hours of sunshine per day.
Sedro-Woolley Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sedro-Woolley - and find the best time to visit.
Monthly Temperature in Sedro-Woolley
Visitors to Sedro-Woolley can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 24°C (75°F) in July, the warmest time of the year, to a chilly 7°C (45°F) during cooler months like December.
At night, you can expect temperatures ranging from 12°C (54°F) in July to around 1°C (34°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Sedro-Woolley
Sedro-Woolley is known for its substantial rain/snowfall, with annual precipitation reaching 1331 mm (52 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, November it receives heavy rainfall, averaging 205 mm (8.1 in) of precipitation, recorded across 22 rainy days. In contrast, the driest month July brings less rainfall, with 26 mm (1 in) over 7 rainy days. For more details, please visit our Sedro-Woolley Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Sedro-Woolley
Seasonal changes in sunshine hours are quite dramatic in Sedro-Woolley. While July receives considerable daily sunshine with up to 9.4 hours, November marks the darkest time of the year, where sunshine is scarce with only 2.0 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Sedro-Woolley
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Seasonal pattern: A distinct dry season from July to August, with warm summers and cold winters
Frequently asked questions about the climate in Sedro-Woolley
What is the best time to visit Sedro-Woolley?
June, July, August and September typically offer the most optimal weather in Sedro-Woolley. In contrast, January, February, March, November and December tend to have less optimal conditions. Sedro-Woolley has a distinct dry season from July to August, with warm summers and cold winters.
What temperatures can I expect in Sedro-Woolley?
Daytime highs range from 7°C (45°F) in December to 24°C (75°F) in July. Nighttime lows range from 1°C (34°F) to 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Sedro-Woolley get?
Annual rainfall is around 1331 mm (52 in). November is the wettest month with 205 mm (8.1 in), while July is the driest with 26 mm (1 in).
How sunny is Sedro-Woolley?
Sedro-Woolley receives around 1,887 hours of sunshine per year. July is the sunniest month with 281 hours, while November is the cloudiest with just 61 hours.
Sedro-Woolley 3-Day Forecast
Sedro-Woolley (WA) 3-Day Forecast
Sedro-Woolley on the map
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