DuPont (WA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit DuPont.
Climate overview of DuPont
Temperatures in DuPont, Washington State, United States of America, vary greatly throughout the year. August is the hottest month at 25°C (77°F), while December is the coldest at 7°C (45°F).
Rain/snowfall is high, totalling around 1091 mm (43 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. The sunniest month is July, with 10.4 hours of sunshine per day on average.
DuPont Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in DuPont - and find the best time to visit.
Monthly Temperature in DuPont
The climate in DuPont is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 25°C (77°F) in August, 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 11°C (52°F) in August to around 0°C (32°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in DuPont
DuPont has a notably wet climate with abundant precipitation, recording 1091 mm (43 in) of rain/snowfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, November it receives heavy rainfall, averaging 187 mm (7.4 in) of precipitation, recorded across 20 rainy days. In contrast, the driest month July brings less rainfall, with 15 mm (0.6 in) over 5 rainy days. For more details, please visit our DuPont 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 DuPont
Seasonal changes in sunshine hours are quite dramatic in DuPont. While July receives considerable daily sunshine with up to 10.4 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
Daily percentage of sunshine
Best Time to Visit DuPont
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
- Wettest months: January, February, March, October, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from July to August, with warm summers and cold winters
Frequently asked questions about the climate in DuPont
What is the best time to visit DuPont?
June, July, August and September typically offer the most optimal weather in DuPont. In contrast, January, February, March, November and December tend to have less optimal conditions. DuPont has a distinct dry season from July to August, with warm summers and cold winters.
What temperatures can I expect in DuPont?
Daytime highs range from 7°C (45°F) in December to 25°C (77°F) in August. Nighttime lows range from 0°C (32°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does DuPont get?
Annual rainfall is around 1091 mm (43 in). November is the wettest month with 187 mm (7.4 in), while July is the driest with 15 mm (0.6 in).
How sunny is DuPont?
DuPont receives around 2,172 hours of sunshine per year. July is the sunniest month with 312 hours, while November is the cloudiest with just 60 hours. Overall, DuPont enjoys abundant sunshine.
DuPont 3-Day Forecast
DuPont (WA) 3-Day Forecast
DuPont on the map
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