September weather in Riggins, ID
The average temperature in Riggins in September is 62.4°F (45.4°F–79.5°F). Average precipitation: 1.16 inches.
September is a fall month in Riggins, and is warmer than the annual average of 50.2°F. Daily temperatures swing about 34.1°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
79.5°F
Avg Low
45.4°F
Precipitation
1.16 in
Daylight
12h 18m
September records in Riggins
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 106.0°F (1945) | 42.1°F (1914) | 0.46 in (1964) |
| September 2 | 105.1°F (1967) | 42.1°F (1900) | 0.41 in (2000) |
| September 3 | 109.9°F (1950) | 39.9°F (2021) | 0.50 in (1946) |
| September 4 | 105.1°F (1950) | 41.0°F (1898) | 0.94 in (1970) |
| September 5 | 102.9°F (1955) | 37.9°F (1968) | 0.62 in (2000) |
| September 6 | 102.9°F (1944) | 37.9°F (1898) | 1.05 in (1897) |
| September 7 | 102.9°F (2022) | 37.9°F (1899) | 0.55 in (1985) |
| September 8 | 102.0°F (1944) | 37.0°F (1899) | 0.88 in (1938) |
| September 9 | 99.0°F (1944) | 35.1°F (1901) | 0.73 in (1998) |
| September 10 | 99.0°F (1940) | 33.1°F (1896) | 0.73 in (1942) |
| September 11 | 100.9°F (1953) | 37.0°F (1916) | 0.57 in (1930) |
| September 12 | 102.0°F (2001) | 30.9°F (1984) | 1.03 in (2004) |
| September 13 | 102.0°F (2001) | 30.0°F (1984) | 1.12 in (1940) |
| September 14 | 99.0°F (2002) | 27.0°F (1984) | 0.96 in (1955) |
| September 15 | 98.1°F (1953) | 30.9°F (1970) | 0.63 in (1959) |
| September 16 | 98.1°F (1953) | 32.0°F (1970) | 0.80 in (1977) |
| September 17 | 100.9°F (1981) | 30.0°F (1965) | 0.42 in (1947) |
| September 18 | 100.9°F (1981) | 32.0°F (1965) | 0.52 in (1940) |
| September 19 | 98.1°F (1981) | 36.0°F (1950) | 0.74 in (1931) |
| September 20 | 99.0°F (1917) | 34.0°F (1983) | 0.80 in (1986) |
| September 21 | 98.1°F (1938) | 36.0°F (1907) | 0.66 in (1945) |
| September 22 | 104.0°F (1966) | 30.0°F (1984) | 0.55 in (1977) |
| September 23 | 99.0°F (1992) | 23.0°F (1984) | 1.35 in (1917) |
| September 24 | 99.0°F (2011) | 26.1°F (1984) | 0.50 in (2005) |
| September 25 | 100.9°F (2001) | 19.9°F (1984) | 0.49 in (2005) |
| September 26 | 99.0°F (2011) | 28.9°F (1900) | 0.46 in (1982) |
| September 27 | 97.0°F (1952) | 28.0°F (1900) | 0.48 in (1981) |
| September 28 | 96.1°F (1967) | 30.9°F (1898) | 1.20 in (1905) |
| September 29 | 99.0°F (1963) | 32.0°F (1902) | 0.58 in (2007) |
| September 30 | 98.1°F (1963) | 33.1°F (1903) | 0.91 in (1940) |