September weather in False Pass, AK
The average temperature in False Pass in September is 48.4°F (43.4°F–53.4°F). Average precipitation: 4.50 inches.
September is a fall month in False Pass, and is warmer than the annual average of 39.3°F. Daily temperatures swing about 10°F between overnight low and afternoon high. Expect about 23 days with precipitation. Daylight averages about 12h 25m. For travel, September is cool.
Avg High
53.4°F
Avg Low
43.4°F
Precipitation
4.50 in
Daylight
12h 25m
September records in False Pass
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 70.0°F (1960) | 35.1°F (1964) | 1.17 in (1971) |
| September 2 | 64.9°F (2023) | 37.9°F (1966) | 0.82 in (2025) |
| September 3 | 63.0°F (2019) | 35.1°F (2020) | 0.57 in (2014) |
| September 4 | 62.1°F (1985) | 32.0°F (2020) | 0.97 in (2012) |
| September 5 | 75.9°F (1985) | 32.0°F (1967) | 1.54 in (1986) |
| September 6 | 63.0°F (1979) | 32.0°F (2012) | 1.81 in (1955) |
| September 7 | 61.0°F (2014) | 33.1°F (1975) | 2.07 in (1990) |
| September 8 | 64.0°F (1952) | 33.1°F (2012) | 1.23 in (1965) |
| September 9 | 61.0°F (1989) | 30.0°F (2012) | 1.22 in (1998) |
| September 10 | 66.0°F (1994) | 30.9°F (1971) | 1.13 in (1973) |
| September 11 | 63.0°F (2022) | 32.0°F (1968) | 1.08 in (2014) |
| September 12 | 60.1°F (1985) | 32.0°F (1968) | 1.89 in (1986) |
| September 13 | 64.0°F (1985) | 33.1°F (1983) | 1.67 in (1986) |
| September 14 | 64.9°F (2024) | 32.0°F (2004) | 1.09 in (1953) |
| September 15 | 64.0°F (1998) | 35.1°F (1971) | 0.68 in (1970) |
| September 16 | 69.1°F (2022) | 33.1°F (1983) | 1.95 in (2020) |
| September 17 | 59.0°F (1954) | 32.0°F (1966) | 2.11 in (1985) |
| September 18 | 61.0°F (2007) | 30.0°F (2003) | 2.12 in (1998) |
| September 19 | 57.9°F (1957) | 31.1°F (2017) | 0.98 in (2016) |
| September 20 | 60.1°F (2013) | 30.0°F (1992) | 1.34 in (1965) |
| September 21 | 63.0°F (2005) | 26.1°F (1992) | 2.78 in (1965) |
| September 22 | 64.9°F (2005) | 30.0°F (1956) | 1.13 in (1997) |
| September 23 | 62.1°F (1951) | 32.0°F (1979) | 0.96 in (2025) |
| September 24 | 66.0°F (1998) | 30.0°F (2006) | 2.10 in (1979) |
| September 25 | 59.0°F (1951) | 28.9°F (1992) | 1.33 in (1980) |
| September 26 | 59.0°F (1977) | 28.0°F (2008) | 0.94 in (2013) |
| September 27 | 62.1°F (2015) | 30.0°F (1954) | 1.10 in (1959) |
| September 28 | 57.9°F (2016) | 27.0°F (1970) | 1.53 in (1983) |
| September 29 | 60.1°F (1954) | 30.0°F (1951) | 1.50 in (2004) |
| September 30 | 57.9°F (2006) | 30.0°F (1953) | 1.77 in (2016) |