September weather in Auburn, WA
The average temperature in Auburn in September is 62.5°F (52.4°F–72.5°F). Average precipitation: 1.49 inches.
September is a fall month in Auburn, and is warmer than the annual average of 53.8°F. Daily temperatures swing about 20.1°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 19m. For travel, September is one of the best months of the year to visit.
Avg High
72.5°F
Avg Low
52.4°F
Precipitation
1.49 in
Daylight
12h 19m
September records in Auburn
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 89.1°F (1987) | 32.0°F (1919) | 1.22 in (1936) |
| September 2 | 96.1°F (1988) | 33.1°F (1919) | 1.30 in (1971) |
| September 3 | 96.1°F (1988) | 36.0°F (1932) | 0.90 in (1913) |
| September 4 | 88.0°F (1935) | 35.1°F (1918) | 1.98 in (1913) |
| September 5 | 95.0°F (1944) | 39.0°F (1912) | 0.76 in (1927) |
| September 6 | 89.1°F (1918) | 37.0°F (1918) | 1.03 in (1931) |
| September 7 | 96.1°F (1981) | 37.0°F (1960) | 0.48 in (1970) |
| September 8 | 95.0°F (1981) | 33.1°F (1916) | 1.22 in (2010) |
| September 9 | 89.1°F (1963) | 36.0°F (1959) | 0.65 in (1985) |
| September 10 | 91.9°F (2022) | 19.0°F (2001) | 0.97 in (1941) |
| September 11 | 89.1°F (2013) | 36.0°F (1921) | 0.90 in (2004) |
| September 12 | 93.9°F (1924) | 34.0°F (1921) | 1.71 in (1934) |
| September 13 | 88.0°F (2013) | 28.9°F (1970) | 0.83 in (1935) |
| September 14 | 91.0°F (1938) | 32.0°F (1921) | 1.27 in (1935) |
| September 15 | 93.9°F (1967) | 33.1°F (1916) | 0.50 in (1959) |
| September 16 | 95.0°F (1981) | 33.1°F (1921) | 0.50 in (1926) |
| September 17 | 91.0°F (1938) | 34.0°F (1965) | 0.73 in (1997) |
| September 18 | 84.9°F (1991) | 30.9°F (1942) | 1.32 in (2021) |
| September 19 | 84.9°F (1927) | 33.1°F (1942) | 0.88 in (2010) |
| September 20 | 87.1°F (1974) | 33.1°F (1928) | 0.85 in (2017) |
| September 21 | 91.0°F (1952) | 33.1°F (1941) | 1.53 in (1972) |
| September 22 | 91.9°F (1990) | 32.0°F (1961) | 1.12 in (1969) |
| September 23 | 90.0°F (1990) | 30.0°F (1926) | 1.97 in (1978) |
| September 24 | 88.0°F (1974) | 30.0°F (1926) | 1.30 in (2014) |
| September 25 | 87.1°F (1974) | 28.0°F (1926) | 0.66 in (1971) |
| September 26 | 84.0°F (2022) | 28.0°F (1926) | 0.78 in (1997) |
| September 27 | 90.0°F (1967) | 28.0°F (1972) | 1.83 in (1940) |
| September 28 | 86.0°F (1967) | 28.0°F (1919) | 2.10 in (2013) |
| September 29 | 88.0°F (2017) | 26.1°F (1919) | 0.65 in (1981) |
| September 30 | 81.0°F (1992) | 30.0°F (1917) | 1.70 in (2013) |