Chaffee County Weather in September
Average highs run from 78°F on September 1 to 69°F on September 30, and lows from 44°F to 34°F. Normal precipitation for the month is 0.90 in over about 8 wet days.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 74°F
- Average low
- 40°F
- Precipitation
- 0.90 in
- Snowfall
- 0.4 in
- Record high
- 96°FSep 8, 1908
- Record low
- 15°FSep 29, 1936
- Chance of a freeze
- 80%
- Daylight
- 13 h 01 min to 11 h 49 min
- Cloud cover
- 46%
- Humidity
- 52%
- Dew point
- 30°F
- Wind
- 7.4 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Sep 1 | 78°F | 44°F | 92°F 1927 | 26°F 1917 | 33% | 0% |
| Sep 2 | 78°F | 44°F | 94°F 1927 | 29°F 1952 | 33% | 0% |
| Sep 3 | 77°F | 44°F | 95°F 1927 | 27°F 1934 | 33% | 0% |
| Sep 4 | 77°F | 43°F | 89°F 1931 | 22°F 1961 | 32% | 0% |
| Sep 5 | 77°F | 43°F | 90°F 1927 | 28°F 1968 | 32% | 0% |
| Sep 6 | 77°F | 43°F | 89°F 2020 | 30°F 1917 | 31% | 0% |
| Sep 7 | 77°F | 43°F | 93°F 1908 | 31°F 1921 | 31% | 0% |
| Sep 8 | 76°F | 42°F | 96°F 1908 | 29°F 1917 | 31% | 0% |
| Sep 9 | 76°F | 42°F | 93°F 1908 | 24°F 2001 | 30% | 0% |
| Sep 10 | 76°F | 42°F | 91°F 1931 | 25°F 2020 | 30% | 0% |
| Sep 11 | 76°F | 41°F | 87°F 2021 | 30°F 1945 | 30% | 0% |
| Sep 12 | 75°F | 41°F | 88°F 1948 | 25°F 1993 | 29% | 0% |
| Sep 13 | 75°F | 41°F | 90°F 1948 | 23°F 1993 | 29% | 0% |
| Sep 14 | 75°F | 40°F | 88°F 1948 | 25°F 1993 | 28% | 1% |
| Sep 15 | 75°F | 40°F | 89°F 1948 | 25°F 1912 | 28% | 1% |
| Sep 16 | 74°F | 40°F | 88°F 1928 | 21°F 1951 | 27% | 1% |
| Sep 17 | 74°F | 39°F | 88°F 2000 | 24°F 1928 | 27% | 1% |
| Sep 18 | 74°F | 39°F | 86°F 1956 | 23°F 1917 | 26% | 1% |
| Sep 19 | 73°F | 39°F | 85°F 2018 | 24°F 1942 | 26% | 1% |
| Sep 20 | 73°F | 38°F | 89°F 1908 | 18°F 1912 | 25% | 1% |
| Sep 21 | 73°F | 38°F | 86°F 1908 | 21°F 1931 | 25% | 1% |
| Sep 22 | 72°F | 38°F | 95°F 1908 | 19°F 1995 | 25% | 1% |
| Sep 23 | 72°F | 37°F | 85°F 1966 | 19°F 1946 | 24% | 1% |
| Sep 24 | 71°F | 37°F | 83°F 1966 | 22°F 1917 | 24% | 1% |
| Sep 25 | 71°F | 36°F | 83°F 2011 | 20°F 1917 | 23% | 1% |
| Sep 26 | 71°F | 36°F | 84°F 1947 | 20°F 1913 | 23% | 1% |
| Sep 27 | 70°F | 36°F | 85°F 2010 | 16°F 1908 | 22% | 1% |
| Sep 28 | 70°F | 35°F | 88°F 1948 | 17°F 1908 | 22% | 2% |
| Sep 29 | 69°F | 35°F | 86°F 2010 | 15°F 1936 | 22% | 2% |
| Sep 30 | 69°F | 34°F | 83°F 1980 | 19°F 1936 | 22% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- September 1
- sunrise 6:34 AM, sunset 7:35 PM
- September 30
- sunrise 7:00 AM, sunset 6:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00051071 (Buena Vista 2S), public domain. Records: NOAA GHCN-Daily, station USC00051071, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.