Asotin County (Clarkston)
September
Weather in Asotin County, Washington for September 2027
Your guide to Asotin County weather in September - trends and predictions
With an average of 5 rainy days, Asotin County experiences minimal rainfall in September.
Is September a good time to visit Asotin County? check out the best time to travel to Asotin County page.
✨ Is September a good time to visit Asotin County? – Ask the AI Weatherman
Rain 🌧️
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25
Dry days
5
Rainy days
0
Snow days
26°/12°
Temperatures
13 km/h
Avg max wind
47 %
Avg humidity
Asotin County Weather September
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Temperatures trend during September in Asotin County
See the weather trend as well as the moving average line
September weather in Asotin County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 36° /18° | 0.1 mm | 5 | |
| Sept. 2 |  Moderate rain | 32° /17° | 14.5 mm | 5 | |
| Sept. 3 |  Heavy rain | 31° /16° | 36.1 mm | 6 | |
| Sept. 4 |  Light rain | 32° /15° | 5.7 mm | 6.6 | |
| Sept. 5 | Sunny | 30° /13° | 0 mm | 6.5 | |
| Sept. 6 |  Cloudy | 30° /13° | 0.7 mm | 5 | |
| Sept. 7 |  Patchy rain possible | 28° /15° | 1.2 mm | 4 | |
| Sept. 8 |  Thundery outbreaks possible | 29° /12° | 0 mm | 6 | |
| Sept. 9 |  Overcast | 26° /14° | 0 mm | 6 | |
| Sept. 10 | Thundery outbreaks possible | 29° /15° | 0 mm | 5 | |
| Sept. 11 | Overcast | 24° /15° | 0.1 mm | 4 | |
| Sept. 12 | Light rain | 26° /13° | 3.8 mm | 3 | |
| Sept. 13 | Light rain | 23° /12° | 9.3 mm | 4 | |
| Sept. 14 | Moderate rain | 19° /11° | 7.4 mm | 3 | |
| Sept. 15 |  Partly cloudy | 20° /10° | 0 mm | 4 | |
| Sept. 16 | Sunny | 26° /10° | 0 mm | 5.5 | |
| Sept. 17 | Sunny | 27° /13° | 0 mm | 5.4 | |
| Sept. 18 | Sunny | 28° /13° | 0.1 mm | 5.3 | |
| Sept. 19 | Cloudy | 29° /16° | 0 mm | 5.2 | |
| Sept. 20 | Sunny | 29° /15° | 0 mm | 5.1 | |
| Sept. 21 | Overcast | 25° /13° | 0 mm | 5 | |
| Sept. 22 | Sunny | 24° /12° | 0 mm | 4 | |
| Sept. 23 | Sunny | 26° /11° | 0 mm | 4.9 | |
| Sept. 24 | Sunny | 29° /12° | 0 mm | 4.8 | |
| Sept. 25 | Patchy rain possible | 24° /11° | 1.2 mm | 4.7 | |
| Sept. 26 | Sunny | 18° /8° | 0 mm | 4 | |
| Sept. 27 | Partly cloudy | 22° /7° | 0 mm | 4 | |
| Sept. 28 | Overcast | 23° /9° | 0 mm | 4.4 | |
| Sept. 29 | Overcast | 22° /11° | 0 mm | 4 | |
| Sept. 30 | Cloudy | 22° /12° | 0.3 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Asotin County in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Asotin County forecast closer to your planned date for the most up-to-date weather information.
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Asotin County in September - FAQ
What are the expected maximum and minimum temperatures in Asotin County during September?
Enjoy moderate daytime temperatures of up to 26° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Asotin County during September?
Moderate rainfall is anticipated in Asotin County during September, with a total of 80.5 mm spread over approximately 5 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Asotin County during September?
The average wind speed in Asotin County during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Asotin County
Explore the daily rainfall trends and prepare for Asotin Countys September weather 💧
Typically, Asotin County has 5 rainy days in September with a total of 80.5 mm of rainfall.
UV exposure in Asotin County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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