September weather in Montrose, CO
The average temperature in Montrose in September is 64.2°F (49.0°F–79.4°F). Average precipitation: 1.24 inches.
September is a fall month in Montrose, and is warmer than the annual average of 51.5°F. Daily temperatures swing about 30.4°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
79.4°F
Avg Low
49.0°F
Precipitation
1.24 in
Daylight
12h 14m
September records in Montrose
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2019) | 37.0°F (1908) | 0.70 in (1904) |
| September 2 | 95.0°F (2019) | 37.0°F (1907) | 0.43 in (1906) |
| September 3 | 95.0°F (1948) | 34.0°F (1961) | 1.23 in (1938) |
| September 4 | 93.9°F (1933) | 37.0°F (1961) | 1.39 in (1938) |
| September 5 | 96.1°F (2022) | 36.0°F (1961) | 0.83 in (1909) |
| September 6 | 97.0°F (2020) | 36.0°F (2004) | 1.50 in (1970) |
| September 7 | 97.0°F (2022) | 34.0°F (1910) | 0.53 in (1939) |
| September 8 | 95.0°F (2022) | 39.9°F (1907) | 0.35 in (1929) |
| September 9 | 93.0°F (2021) | 32.0°F (1941) | 0.52 in (1967) |
| September 10 | 93.9°F (2021) | 32.0°F (1962) | 0.85 in (2003) |
| September 11 | 91.0°F (1956) | 34.0°F (1947) | 0.67 in (1903) |
| September 12 | 91.9°F (1956) | 34.0°F (1924) | 0.67 in (1988) |
| September 13 | 91.0°F (1990) | 33.1°F (1967) | 0.73 in (1906) |
| September 14 | 91.0°F (1990) | 30.0°F (1914) | 0.75 in (1912) |
| September 15 | 91.9°F (1990) | 33.1°F (1912) | 0.69 in (2017) |
| September 16 | 91.9°F (2018) | 30.9°F (1968) | 1.28 in (1984) |
| September 17 | 90.0°F (2018) | 30.9°F (1968) | 0.81 in (2007) |
| September 18 | 91.0°F (2018) | 30.9°F (1971) | 0.76 in (2000) |
| September 19 | 93.0°F (1956) | 26.1°F (1905) | 0.78 in (1897) |
| September 20 | 90.0°F (1956) | 26.1°F (1978) | 0.74 in (1950) |
| September 21 | 91.9°F (1944) | 28.0°F (1912) | 0.65 in (2004) |
| September 22 | 89.1°F (1922) | 26.1°F (1909) | 0.60 in (2006) |
| September 23 | 89.1°F (1922) | 26.1°F (1909) | 1.02 in (1941) |
| September 24 | 88.0°F (1947) | 30.0°F (1909) | 0.40 in (1954) |
| September 25 | 86.0°F (1947) | 28.0°F (1912) | 1.05 in (1935) |
| September 26 | 88.0°F (1947) | 27.0°F (1970) | 0.33 in (1935) |
| September 27 | 86.0°F (1956) | 21.0°F (1908) | 0.30 in (1900) |
| September 28 | 88.0°F (2015) | 21.9°F (1908) | 0.64 in (2005) |
| September 29 | 87.1°F (1933) | 27.0°F (1908) | 1.05 in (1995) |
| September 30 | 87.1°F (2023) | 27.0°F (1961) | 0.66 in (1911) |