September weather in St. Paul, AK
The average temperature in St. Paul in September is 46.0°F (41.9°F–50.1°F). Average precipitation: 3.00 inches.
September is a fall month in St. Paul, and is warmer than the annual average of 35.9°F. Daily temperatures swing about 8.2°F between overnight low and afternoon high. Expect about 20 days with precipitation. Daylight averages about 12h 28m. For travel, September is cool.
Avg High
50.1°F
Avg Low
41.9°F
Precipitation
3.00 in
Daylight
12h 28m
September records in St. Paul
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 57.0°F (2019) | 28.9°F (1947) | 0.85 in (1984) |
| September 2 | 59.0°F (1977) | 27.0°F (1947) | 0.81 in (2012) |
| September 3 | 57.9°F (1979) | 30.0°F (1962) | 1.06 in (1970) |
| September 4 | 57.0°F (2014) | 28.0°F (1962) | 0.99 in (1915) |
| September 5 | 59.0°F (2016) | 30.0°F (1962) | 4.68 in (2025) |
| September 6 | 55.9°F (1935) | 28.9°F (1959) | 1.99 in (2025) |
| September 7 | 59.0°F (1915) | 28.9°F (1975) | 1.21 in (1991) |
| September 8 | 57.0°F (2021) | 28.0°F (1975) | 1.05 in (2000) |
| September 9 | 57.0°F (2019) | 28.0°F (1987) | 0.90 in (1936) |
| September 10 | 61.0°F (1979) | 32.0°F (2023) | 1.09 in (1928) |
| September 11 | 55.9°F (2004) | 28.9°F (1992) | 0.81 in (2014) |
| September 12 | 62.1°F (1925) | 25.0°F (1992) | 1.08 in (1986) |
| September 13 | 57.0°F (2019) | 30.9°F (1960) | 0.96 in (1944) |
| September 14 | 57.0°F (2016) | 28.9°F (2000) | 0.70 in (1953) |
| September 15 | 60.1°F (1925) | 32.0°F (1955) | 0.92 in (1989) |
| September 16 | 61.0°F (1925) | 28.0°F (1976) | 1.04 in (1987) |
| September 17 | 55.9°F (1977) | 27.0°F (2012) | 1.42 in (1985) |
| September 18 | 55.0°F (2019) | 28.9°F (1947) | 1.50 in (1949) |
| September 19 | 54.0°F (1941) | 26.1°F (1984) | 0.80 in (1993) |
| September 20 | 55.9°F (1941) | 28.0°F (2012) | 0.61 in (2013) |
| September 21 | 55.0°F (1926) | 27.0°F (2012) | 0.75 in (1918) |
| September 22 | 54.0°F (1915) | 28.9°F (1962) | 0.86 in (1917) |
| September 23 | 54.0°F (1944) | 26.1°F (1964) | 0.99 in (2025) |
| September 24 | 53.1°F (2014) | 21.9°F (1992) | 1.26 in (1924) |
| September 25 | 54.0°F (2018) | 21.9°F (1992) | 1.47 in (1933) |
| September 26 | 54.0°F (2014) | 26.2°F (2022) | 1.29 in (1961) |
| September 27 | 54.0°F (1937) | 25.0°F (1989) | 0.79 in (1950) |
| September 28 | 57.9°F (1941) | 28.0°F (1985) | 1.03 in (2004) |
| September 29 | 52.0°F (1939) | 24.1°F (2012) | 1.29 in (1993) |
| September 30 | 54.0°F (1941) | 25.0°F (1965) | 0.73 in (1966) |