Chaffee County (Buena Vista)
September
Weather in Chaffee County, Colorado for September 2026
Your guide to Chaffee County weather in September - trends and predictions
In general, the average temperature in Chaffee County at the beginning of September is 19.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.1 °F by the end of September.
Chaffee County experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 133.9 mm.
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Temperatures
Rain 🌧️
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20
Dry days
10
Rainy days
0
Snow days
18°/1°
Temperatures
14 km/h
Avg max wind
59 %
Avg humidity
Chaffee County Weather September
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Temperatures trend during September in Chaffee County
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September weather in Chaffee County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Partly cloudy | 21° /1° | 0 mm | 6 | |
| Sept. 2 |  Overcast | 20° /2° | 0 mm | 5 | |
| Sept. 3 |  Cloudy | 21° /1° | 0 mm | 5 | |
| Sept. 4 | Partly cloudy | 22° /2° | 0 mm | 6 | |
| Sept. 5 |  Moderate or heavy rain shower | 15° /3° | 19.4 mm | 4 | |
| Sept. 6 |  Light rain shower | 18° /1° | 28 mm | 4 | |
| Sept. 7 |  Thundery outbreaks possible | 19° /0° | 0 mm | 4 | |
| Sept. 8 | Thundery outbreaks possible | 20° /1° | 0 mm | 5 | |
| Sept. 9 | Thundery outbreaks possible | 21° /2° | 0 mm | 5 | |
| Sept. 10 | Thundery outbreaks possible | 20° /3° | 0 mm | 5 | |
| Sept. 11 | Light rain shower | 19° /5° | 18 mm | 4 | |
| Sept. 12 | Thundery outbreaks possible | 16° /7° | 9.4 mm | 4 | |
| Sept. 13 | Light rain shower | 13° /1° | 21.1 mm | 3 | |
| Sept. 14 | Cloudy | 16° /2° | 5.4 mm | 4 | |
| Sept. 15 |  Sunny | 19° /0° | 0 mm | 5 | |
| Sept. 16 | Thundery outbreaks possible | 19° /1° | 0 mm | 4 | |
| Sept. 17 | Sunny | 18° /0° | 0 mm | 5 | |
| Sept. 18 | Thundery outbreaks possible | 15° /0° | 0 mm | 4 | |
| Sept. 19 | Overcast | 19° /-1° | 0 mm | 4 | |
| Sept. 20 | Light rain shower | 16° /1° | 5.2 mm | 4 | |
| Sept. 21 | Sunny | 19° /1° | 0 mm | 5 | |
| Sept. 22 | Thundery outbreaks possible | 15° /1° | 0.3 mm | 4 | |
| Sept. 23 | Cloudy | 13° /-3° | 0 mm | 3 | |
| Sept. 24 | Overcast | 14° /0° | 0 mm | 3 | |
| Sept. 25 | Sunny | 20° /-1° | 0 mm | 6 | |
| Sept. 26 | Partly cloudy | 18° /0° | 0 mm | 5 | |
| Sept. 27 | Cloudy | 16° /2° | 0 mm | 4 | |
| Sept. 28 | Light rain shower | 14° /3° | 12.8 mm | 3 | |
| Sept. 29 | Thundery outbreaks possible | 15° /6° | 14.3 mm | 4 | |
| Sept. 30 | Thundery outbreaks possible | 16° /0° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Chaffee 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 Chaffee County forecast closer to your planned date for the most up-to-date weather information.
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Chaffee County in September - FAQ
What are the expected maximum and minimum temperatures in Chaffee County during September?
During September, expect a variety of temperatures with highs around 18° and lows near 1°, suitable for diverse activities and preferences.
How much rainfall should be expected in Chaffee County during September?
Significant rainfall exceeding 133.9 mm is expected in Chaffee County during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Chaffee County during September?
The average wind speed in Chaffee County during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Chaffee County
Explore the daily rainfall trends and prepare for Chaffee Countys September weather 💧
UV exposure in Chaffee County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Chaffee County?Get accurate weather forecasts for Chaffee County, located at latitude 38.842 and longitude -106.131. Stay updated with localized weather information tailored for Chaffee County.
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