September weather in Monte Vista, CO
The average temperature in Monte Vista in September is 53.7°F (34.8°F–72.5°F). Average precipitation: 1.11 inches.
September is a fall month in Monte Vista, and is warmer than the annual average of 40.4°F. Daily temperatures swing about 37.7°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 14m. For travel, September is cool.
Avg High
72.5°F
Avg Low
34.8°F
Precipitation
1.11 in
Daylight
12h 14m
September records in Monte Vista
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 84.9°F (1940) | 27.0°F (1956) | 0.39 in (1942) |
| September 2 | 84.0°F (1954) | 30.0°F (1959) | 0.30 in (2021) |
| September 3 | 84.9°F (1939) | 28.9°F (1959) | 0.46 in (1994) |
| September 4 | 86.0°F (1948) | 27.0°F (1953) | 0.25 in (2002) |
| September 5 | 86.0°F (1945) | 27.0°F (1953) | 0.32 in (1970) |
| September 6 | 88.0°F (2022) | 27.0°F (1953) | 0.26 in (2003) |
| September 7 | 87.1°F (2020) | 32.0°F (1953) | 0.46 in (1947) |
| September 8 | 86.0°F (1940) | 19.9°F (2001) | 0.74 in (1986) |
| September 9 | 84.0°F (1940) | 25.0°F (2001) | 1.89 in (2020) |
| September 10 | 84.0°F (2021) | 23.0°F (1962) | 0.54 in (1967) |
| September 11 | 84.9°F (2021) | 28.0°F (1951) | 0.43 in (1983) |
| September 12 | 84.9°F (2021) | 25.0°F (1957) | 0.62 in (1939) |
| September 13 | 82.0°F (1948) | 25.0°F (1951) | 1.52 in (2012) |
| September 14 | 82.9°F (2018) | 26.1°F (2005) | 0.62 in (1969) |
| September 15 | 82.9°F (2018) | 26.1°F (2005) | 0.62 in (1974) |
| September 16 | 82.9°F (2000) | 25.0°F (1951) | 0.92 in (2023) |
| September 17 | 82.0°F (1956) | 25.0°F (1968) | 0.38 in (1990) |
| September 18 | 82.0°F (2018) | 24.1°F (1971) | 0.65 in (2002) |
| September 19 | 84.0°F (2018) | 21.9°F (1957) | 0.73 in (1992) |
| September 20 | 82.9°F (2010) | 19.9°F (1959) | 0.36 in (1965) |
| September 21 | 82.0°F (1944) | 15.1°F (1978) | 0.75 in (1952) |
| September 22 | 81.0°F (1944) | 21.0°F (2004) | 0.61 in (2024) |
| September 23 | 82.0°F (1966) | 21.0°F (1946) | 0.35 in (2010) |
| September 24 | 79.0°F (1951) | 19.0°F (2000) | 0.38 in (1954) |
| September 25 | 79.0°F (1948) | 18.0°F (1961) | 0.33 in (1954) |
| September 26 | 80.1°F (2003) | 19.9°F (1959) | 0.18 in (1948) |
| September 27 | 82.9°F (1991) | 21.9°F (1953) | 0.94 in (1976) |
| September 28 | 80.1°F (2010) | 18.0°F (2013) | 1.26 in (1990) |
| September 29 | 79.0°F (2003) | 23.0°F (2013) | 0.40 in (1949) |
| September 30 | 80.1°F (2010) | 19.9°F (1961) | 0.80 in (1959) |