Inyo County (Death Valley)
September
Weather in Inyo County for September 2025
Your guide to Inyo County weather in September - trends and predictions
In general, the average temperature in Inyo County at the beginning of September is 39.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 35.3 °F by the end of September.
Precipitation in Inyo County during September is a rare event, with an average of fewer than 2 rainy days.
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29
Dry days
1
Rainy days
0
Snow days
35°/15°
Temperatures
15 km/h
Avg max wind
25 %
Avg humidity
Inyo County in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  42° | 2  39° | 3 38° | 4 37° | 5 40° | 6 40° | 7 41° |
| 8 40° | 9 41° | 10  40° | 11 38° | 12 35° | 13 37° | 14 38° |
| 15 37° | 16 33° | 17 33° | 18 32° | 19 31° | 20 31° | 21 33° |
| 22 32° | 23 34° | 24 35° | 25 36° | 26 35° | 27 36° | 28 36° |
| 29 37° | 30  32° |
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Temperatures trend during September in Inyo County
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Sunny | 42° /25° | 0 mm | 10 | |
| Sept. 2 | Partly cloudy | 39° /23° | 1 mm | 10 | |
| Sept. 3 | Sunny | 38° /22° | 0 mm | 9 | |
| Sept. 4 | Sunny | 37° /19° | 0 mm | 9 | |
| Sept. 5 | Sunny | 40° /21° | 0 mm | 10 | |
| Sept. 6 | Sunny | 40° /20° | 0 mm | 10 | |
| Sept. 7 | Sunny | 41° /20° | 0 mm | 10 | |
| Sept. 8 | Sunny | 40° /19° | 0 mm | 10 | |
| Sept. 9 | Sunny | 41° /20° | 0 mm | 10 | |
| Sept. 10 | Overcast | 40° /22° | 0 mm | 9 | |
| Sept. 11 | Sunny | 38° /19° | 0 mm | 9 | |
| Sept. 12 | Sunny | 35° /18° | 0 mm | 9 | |
| Sept. 13 | Sunny | 37° /17° | 0 mm | 9 | |
| Sept. 14 | Sunny | 38° /18° | 0 mm | 9 | |
| Sept. 15 | Sunny | 37° /18° | 0 mm | 9 | |
| Sept. 16 | Sunny | 33° /15° | 0 mm | 8 | |
| Sept. 17 | Sunny | 33° /10° | 0 mm | 8 | |
| Sept. 18 | Sunny | 32° /12° | 0 mm | 8 | |
| Sept. 19 | Sunny | 31° /14° | 0 mm | 7 | |
| Sept. 20 | Sunny | 31° /11° | 0 mm | 8 | |
| Sept. 21 | Sunny | 33° /11° | 0 mm | 8 | |
| Sept. 22 | Overcast | 32° /11° | 0 mm | 8 | |
| Sept. 23 | Partly cloudy | 34° /13° | 0 mm | 9 | |
| Sept. 24 | Sunny | 35° /10° | 0 mm | 9 | |
| Sept. 25 | Sunny | 36° /12° | 0 mm | 9 | |
| Sept. 26 | Sunny | 35° /11° | 0 mm | 9 | |
| Sept. 27 | Sunny | 36° /12° | 0 mm | 9 | |
| Sept. 28 | Sunny | 36° /13° | 0 mm | 9 | |
| Sept. 29 | Sunny | 37° /13° | 0 mm | 9 | |
| Sept. 30 | Thundery outbreaks possible | 32° /11° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Inyo 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 Inyo County forecast closer to your planned date for the most up-to-date weather information.
Inyo County in September - FAQ
What are the expected maximum and minimum temperatures in Inyo County during September?
Expect warm days with temperatures around 35°, cooling to mild conditions of 15° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Inyo County during September?
Rainfall in Inyo County during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Inyo County during September?
The average wind speed in Inyo County during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Inyo County
Explore the daily rainfall trends and prepare for Inyo Countys September weather 💧
UV exposure in Inyo County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Inyo County?Get accurate weather forecasts for Inyo County, located at latitude 36.24 and longitude -116.811. Stay updated with localized weather information tailored for Inyo County.
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