September weather in Altamont, UT
The average temperature in Altamont in September is 56.1°F (41.2°F–71.0°F). Average precipitation: 1.24 inches.
September is a fall month in Altamont, and is warmer than the annual average of 42.2°F. Daily temperatures swing about 29.8°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
71.0°F
Avg Low
41.2°F
Precipitation
1.24 in
Snow
0.1 in
September records in Altamont
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 88.0°F (2022) | 30.9°F (2020) | 0.53 in (1966) |
| September 2 | 88.0°F (1958) | 30.0°F (1973) | 1.00 in (1999) |
| September 3 | 88.0°F (2022) | 26.1°F (1953) | 0.14 in (2013) |
| September 4 | 89.1°F (1978) | 32.0°F (1961) | 0.56 in (2023) |
| September 5 | 90.0°F (2022) | 34.0°F (2004) | 0.42 in (1970) |
| September 6 | 88.0°F (2020) | 30.9°F (2023) | 0.90 in (1981) |
| September 7 | 89.1°F (2022) | 37.9°F (1968) | 0.33 in (1991) |
| September 8 | 87.1°F (1977) | 30.0°F (2001) | 0.72 in (2019) |
| September 9 | 88.0°F (1979) | 25.0°F (1962) | 0.93 in (1961) |
| September 10 | 84.9°F (1974) | 24.1°F (1999) | 0.82 in (2005) |
| September 11 | 84.0°F (1958) | 26.1°F (2020) | 0.47 in (1982) |
| September 12 | 84.9°F (1958) | 28.9°F (1974) | 1.05 in (1985) |
| September 13 | 84.9°F (2015) | 27.0°F (1967) | 0.67 in (1958) |
| September 14 | 90.0°F (1990) | 28.0°F (1974) | 0.70 in (2001) |
| September 15 | 82.9°F (1956) | 28.0°F (1991) | 0.89 in (2009) |
| September 16 | 87.1°F (2012) | 28.0°F (1991) | 0.55 in (2006) |
| September 17 | 81.0°F (1956) | 26.1°F (2006) | 0.55 in (1969) |
| September 18 | 81.0°F (1956) | 21.0°F (1971) | 0.65 in (1961) |
| September 19 | 84.0°F (1962) | 21.0°F (1971) | 0.86 in (1990) |
| September 20 | 82.0°F (2010) | 21.0°F (1978) | 0.78 in (1989) |
| September 21 | 81.0°F (2001) | 21.9°F (1978) | 0.81 in (1962) |
| September 22 | 82.0°F (1966) | 24.1°F (1978) | 0.70 in (2016) |
| September 23 | 82.9°F (1966) | 26.1°F (1985) | 1.37 in (2016) |
| September 24 | 84.0°F (1966) | 26.1°F (1961) | 0.77 in (2017) |
| September 25 | 82.0°F (2015) | 25.0°F (1961) | 0.45 in (1986) |
| September 26 | 82.9°F (2015) | 21.9°F (1958) | 0.61 in (1954) |
| September 27 | 82.0°F (2015) | 25.0°F (1996) | 0.57 in (1982) |
| September 28 | 82.9°F (1991) | 21.9°F (1971) | 1.00 in (2014) |
| September 29 | 81.0°F (2024) | 19.9°F (1985) | 0.59 in (2014) |
| September 30 | 81.0°F (1963) | 19.0°F (1985) | 0.45 in (1982) |