The climate in Spokane during September can be summarized as mild and dry.
September is in the fall / autumn in Spokane and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 8°C (46°F) is normal.
Daytime temperature | 22.7°C 72.8°F |
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Nightly temperature | 7.6°C 45.6°F |
Average temperature | 15.1°C 59.2°F |
Daily sunshine | 9.6 hrs |
Avg rainfall | 20 mm 0.8 ins |
Rainy days | 6 days |
Sea temperature | 12.8°C 55.1°F |
Humidity | 55% |
Windspeed | 13.3kph 8 mph |
On average September is the 3rd driest month of the year in Spokane with around 20mm 0.8 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.6 hours of sunshine per day.
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 Spokane in September 2024.
Best places to visit in September
Hottest month: | July | 28.2°C 82.8°F |
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Driest month: | July | 17mm 0.7ins |
Sunniest month: | July | 13.2hrs |
Coldest month: | January | 0.8°C 33.4°F |
Wettest month: | December | 65mm 2.6ins |