September weather in Wallace, ID
The average temperature in Wallace in September is 57.5°F (43.8°F–71.1°F). Average precipitation: 1.61 inches.
September is a fall month in Wallace, and is warmer than the annual average of 46°F. Daily temperatures swing about 27.3°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
71.1°F
Avg Low
43.8°F
Precipitation
1.61 in
Daylight
12h 19m
September records in Wallace
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1967) | 34.0°F (1973) | 0.64 in (1961) |
| September 2 | 96.1°F (2025) | 33.1°F (1973) | 1.67 in (1968) |
| September 3 | 98.1°F (1988) | 30.9°F (1956) | 0.40 in (2014) |
| September 4 | 98.1°F (1988) | 30.9°F (1956) | 0.49 in (1994) |
| September 5 | 97.0°F (1988) | 32.0°F (1956) | 1.10 in (1959) |
| September 6 | 97.0°F (1988) | 32.0°F (1969) | 0.86 in (1959) |
| September 7 | 93.9°F (1998) | 30.9°F (1992) | 0.52 in (1947) |
| September 8 | 91.9°F (1958) | 27.0°F (1962) | 0.41 in (1959) |
| September 9 | 93.0°F (1958) | 30.0°F (1962) | 0.36 in (1979) |
| September 10 | 93.0°F (1969) | 30.0°F (1964) | 0.52 in (1949) |
| September 11 | 91.9°F (1958) | 30.9°F (2014) | 1.56 in (2024) |
| September 12 | 93.0°F (1953) | 26.1°F (1970) | 0.91 in (1962) |
| September 13 | 91.0°F (2013) | 23.0°F (1970) | 0.22 in (1941) |
| September 14 | 88.0°F (1946) | 23.0°F (1970) | 0.83 in (1968) |
| September 15 | 89.1°F (2002) | 23.0°F (1970) | 0.85 in (1965) |
| September 16 | 91.9°F (1998) | 25.0°F (1965) | 0.95 in (1949) |
| September 17 | 93.9°F (1981) | 25.0°F (1965) | 0.93 in (2013) |
| September 18 | 97.0°F (1981) | 26.1°F (1942) | 1.67 in (1968) |
| September 19 | 93.0°F (1981) | 25.0°F (1957) | 1.90 in (2017) |
| September 20 | 84.9°F (1952) | 24.1°F (1983) | 0.73 in (1945) |
| September 21 | 88.0°F (1979) | 25.0°F (1971) | 1.07 in (2008) |
| September 22 | 91.0°F (1967) | 26.1°F (1971) | 0.91 in (2013) |
| September 23 | 91.9°F (1966) | 23.0°F (2000) | 0.87 in (1963) |
| September 24 | 90.0°F (1987) | 24.1°F (2000) | 1.06 in (1992) |
| September 25 | 89.1°F (2001) | 26.1°F (1955) | 0.76 in (1973) |
| September 26 | 89.1°F (1963) | 28.9°F (1970) | 0.77 in (1982) |
| September 27 | 90.0°F (1963) | 25.0°F (1961) | 0.43 in (1995) |
| September 28 | 90.0°F (1967) | 24.1°F (1985) | 1.66 in (2013) |
| September 29 | 89.1°F (1963) | 23.0°F (1985) | 0.97 in (2013) |
| September 30 | 84.0°F (1963) | 23.0°F (1985) | 0.87 in (1956) |