September weather in Elk River, ID
The average temperature in Elk River in September is 56.3°F (40.3°F–72.4°F). Average precipitation: 1.50 inches.
September is a fall month in Elk River, and is warmer than the annual average of 44.8°F. Daily temperatures swing about 32.1°F between overnight low and afternoon high. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
72.4°F
Avg Low
40.3°F
Precipitation
1.50 in
Daylight
12h 19m
September records in Elk River
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1967) | 30.0°F (1973) | 1.36 in (1984) |
| September 2 | 100.0°F (1976) | 25.0°F (1975) | 0.84 in (1964) |
| September 3 | 96.1°F (1988) | 28.9°F (1958) | 0.42 in (1971) |
| September 4 | 97.0°F (1988) | 28.9°F (1956) | 0.74 in (1960) |
| September 5 | 95.0°F (1998) | 30.9°F (1956) | 1.12 in (1959) |
| September 6 | 93.9°F (1973) | 28.0°F (1969) | 0.97 in (1985) |
| September 7 | 93.0°F (1958) | 25.0°F (1992) | 1.16 in (1970) |
| September 8 | 91.9°F (1958) | 27.0°F (1992) | 0.38 in (2003) |
| September 9 | 91.9°F (2011) | 27.0°F (1962) | 1.09 in (2003) |
| September 10 | 91.9°F (1958) | 27.0°F (1962) | 0.40 in (2000) |
| September 11 | 93.0°F (1953) | 26.1°F (2014) | 0.96 in (1983) |
| September 12 | 91.9°F (1953) | 28.9°F (1988) | 0.74 in (1982) |
| September 13 | 91.0°F (2013) | 28.0°F (1974) | 0.36 in (1980) |
| September 14 | 89.1°F (2002) | 21.0°F (1970) | 0.76 in (1963) |
| September 15 | 90.0°F (1990) | 21.9°F (1970) | 0.80 in (1955) |
| September 16 | 90.0°F (1981) | 25.0°F (1970) | 1.06 in (1985) |
| September 17 | 93.0°F (1981) | 21.9°F (1965) | 0.87 in (1985) |
| September 18 | 95.0°F (1981) | 24.1°F (1971) | 0.96 in (1968) |
| September 19 | 93.0°F (1981) | 21.0°F (1975) | 0.49 in (1958) |
| September 20 | 87.1°F (1979) | 24.1°F (1983) | 0.66 in (1977) |
| September 21 | 89.1°F (1979) | 23.0°F (1971) | 0.90 in (2006) |
| September 22 | 91.9°F (1967) | 25.0°F (1971) | 1.33 in (2008) |
| September 23 | 91.9°F (1966) | 21.0°F (2000) | 1.23 in (2022) |
| September 24 | 88.0°F (2001) | 24.1°F (2000) | 1.10 in (1992) |
| September 25 | 91.0°F (2011) | 23.0°F (1970) | 0.80 in (1986) |
| September 26 | 90.0°F (1963) | 24.1°F (1970) | 0.72 in (1998) |
| September 27 | 91.9°F (1963) | 23.0°F (1961) | 0.87 in (2019) |
| September 28 | 97.0°F (2015) | 19.9°F (1985) | 0.62 in (1981) |
| September 29 | 91.9°F (1963) | 19.9°F (1984) | 0.74 in (1995) |
| September 30 | 88.0°F (1957) | 21.0°F (1984) | 1.18 in (2013) |