September weather in Ponderay, ID
The average temperature in Ponderay in September is 57.0°F (42.4°F–71.7°F). Average precipitation: 1.41 inches.
September is a fall month in Ponderay, and is warmer than the annual average of 46.1°F. Daily temperatures swing about 29.3°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 20m. For travel, September is a comfortable month to visit.
Avg High
71.7°F
Avg Low
42.4°F
Precipitation
1.41 in
Daylight
12h 20m
September records in Ponderay
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1938) | 28.9°F (1930) | 0.83 in (1981) |
| September 2 | 96.1°F (1938) | 32.0°F (1914) | 0.90 in (1980) |
| September 3 | 95.0°F (1938) | 30.0°F (1932) | 0.80 in (1970) |
| September 4 | 90.0°F (1988) | 30.0°F (1912) | 1.55 in (1960) |
| September 5 | 93.0°F (1998) | 32.0°F (1912) | 1.58 in (1940) |
| September 6 | 95.0°F (2025) | 30.9°F (1992) | 0.92 in (1927) |
| September 7 | 93.0°F (1998) | 26.1°F (1929) | 1.23 in (1922) |
| September 8 | 91.0°F (1944) | 28.9°F (1976) | 0.55 in (2025) |
| September 9 | 89.1°F (1944) | 28.9°F (1932) | 0.83 in (1947) |
| September 10 | 88.0°F (1944) | 26.1°F (1921) | 1.44 in (1927) |
| September 11 | 89.1°F (1973) | 28.9°F (1928) | 2.15 in (1927) |
| September 12 | 91.0°F (2011) | 25.0°F (2014) | 0.70 in (1920) |
| September 13 | 91.0°F (2011) | 21.9°F (1921) | 1.36 in (1927) |
| September 14 | 90.0°F (2013) | 21.0°F (1970) | 0.76 in (1927) |
| September 15 | 90.0°F (2013) | 24.1°F (1970) | 0.94 in (1949) |
| September 16 | 90.0°F (2013) | 23.0°F (1973) | 0.93 in (1944) |
| September 17 | 87.1°F (1938) | 26.1°F (1971) | 1.33 in (1985) |
| September 18 | 84.9°F (1952) | 27.0°F (1971) | 2.00 in (2021) |
| September 19 | 84.0°F (1984) | 25.0°F (1957) | 1.62 in (2021) |
| September 20 | 82.9°F (1967) | 23.0°F (1928) | 1.45 in (1945) |
| September 21 | 87.1°F (1938) | 25.0°F (1932) | 0.71 in (1972) |
| September 22 | 88.0°F (1987) | 28.0°F (1946) | 0.84 in (1944) |
| September 23 | 82.9°F (1987) | 21.9°F (2000) | 0.97 in (1973) |
| September 24 | 84.9°F (2011) | 16.0°F (1926) | 0.78 in (1933) |
| September 25 | 84.9°F (1990) | 19.9°F (1926) | 0.74 in (1951) |
| September 26 | 86.0°F (1952) | 24.1°F (1926) | 0.51 in (1982) |
| September 27 | 82.9°F (1994) | 25.0°F (1961) | 0.58 in (1955) |
| September 28 | 84.9°F (1994) | 23.0°F (1984) | 1.28 in (1962) |
| September 29 | 82.0°F (2006) | 21.0°F (1919) | 1.77 in (2013) |
| September 30 | 78.1°F (1990) | 21.0°F (1929) | 1.21 in (1951) |