September weather in Airway Heights, WA
The average temperature in Airway Heights in September is 61.1°F (48.6°F–73.6°F). Average precipitation: 0.58 inches.
September is a fall month in Airway Heights, and is warmer than the annual average of 48.6°F. Daily temperatures swing about 25°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
73.6°F
Avg Low
48.6°F
Precipitation
0.58 in
Snow
0.1 in
September records in Airway Heights
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (2025) | 37.0°F (1959) | 0.28 in (1936) |
| September 2 | 99.0°F (2025) | 37.0°F (1999) | 0.50 in (1890) |
| September 3 | 98.1°F (1988) | 39.0°F (1980) | 0.44 in (1979) |
| September 4 | 96.1°F (1988) | 36.0°F (1889) | 0.60 in (1936) |
| September 5 | 96.1°F (1988) | 39.0°F (1965) | 0.77 in (1946) |
| September 6 | 93.9°F (1944) | 33.1°F (1895) | 1.16 in (1927) |
| September 7 | 96.1°F (2024) | 35.1°F (1976) | 1.05 in (1995) |
| September 8 | 93.0°F (1944) | 33.1°F (1976) | 0.46 in (2003) |
| September 9 | 93.0°F (1935) | 35.1°F (1964) | 0.64 in (2019) |
| September 10 | 93.0°F (1963) | 32.0°F (1895) | 1.51 in (1927) |
| September 11 | 93.9°F (1944) | 28.9°F (1889) | 0.35 in (1982) |
| September 12 | 91.0°F (1908) | 33.1°F (1889) | 0.93 in (1895) |
| September 13 | 91.9°F (2013) | 32.0°F (1970) | 1.06 in (1927) |
| September 14 | 91.9°F (1938) | 26.1°F (1889) | 0.43 in (1985) |
| September 15 | 93.0°F (1937) | 33.1°F (1970) | 0.49 in (1954) |
| September 16 | 93.0°F (1938) | 28.0°F (1965) | 0.46 in (1910) |
| September 17 | 93.0°F (1938) | 25.0°F (1965) | 0.68 in (1964) |
| September 18 | 98.1°F (1938) | 32.0°F (1942) | 0.42 in (2021) |
| September 19 | 91.9°F (1906) | 32.0°F (1983) | 1.04 in (1973) |
| September 20 | 90.0°F (1939) | 32.0°F (1983) | 0.71 in (1945) |
| September 21 | 91.9°F (1938) | 30.0°F (1895) | 0.53 in (1959) |
| September 22 | 93.0°F (1966) | 30.9°F (1991) | 0.60 in (1934) |
| September 23 | 91.0°F (1905) | 21.9°F (2000) | 1.15 in (1892) |
| September 24 | 90.0°F (2011) | 21.9°F (1926) | 0.33 in (1977) |
| September 25 | 93.0°F (1952) | 25.0°F (1926) | 0.57 in (1982) |
| September 26 | 87.1°F (1952) | 28.0°F (1908) | 0.60 in (1948) |
| September 27 | 90.0°F (2022) | 28.0°F (1972) | 0.59 in (1955) |
| September 28 | 89.1°F (1967) | 27.0°F (1984) | 0.72 in (2019) |
| September 29 | 86.0°F (1890) | 24.1°F (1985) | 0.46 in (2022) |
| September 30 | 89.1°F (1992) | 28.9°F (1903) | 0.59 in (2005) |