September weather in Cashmere, WA
The average temperature in Cashmere in September is 65.6°F (52.3°F–78.8°F). Average precipitation: 0.24 inches.
September is a fall month in Cashmere, and is warmer than the annual average of 52.5°F. Daily temperatures swing about 26.5°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 12h 19m. For travel, September is one of the best months of the year to visit.
Avg High
78.8°F
Avg Low
52.3°F
Precipitation
0.24 in
Daylight
12h 19m
September records in Cashmere
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (2024) | 45.0°F (1964) | 0.54 in (1944) |
| September 2 | 100.9°F (1987) | 39.9°F (1932) | 0.46 in (1941) |
| September 3 | 102.0°F (2025) | 41.0°F (1932) | 0.23 in (1978) |
| September 4 | 95.0°F (1935) | 43.0°F (1956) | 0.13 in (1997) |
| September 5 | 96.1°F (1942) | 37.9°F (2024) | 0.34 in (1949) |
| September 6 | 97.0°F (2025) | 43.0°F (1960) | 0.40 in (2013) |
| September 7 | 98.1°F (2020) | 39.9°F (1931) | 0.34 in (1995) |
| September 8 | 96.1°F (1944) | 39.9°F (1976) | 0.49 in (2010) |
| September 9 | 93.9°F (1935) | 39.0°F (1976) | 0.30 in (1985) |
| September 10 | 96.1°F (1963) | 41.0°F (1932) | 0.38 in (1933) |
| September 11 | 95.0°F (1944) | 39.9°F (1964) | 1.38 in (2019) |
| September 12 | 98.1°F (1944) | 21.0°F (1936) | 0.04 in (1985) |
| September 13 | 97.0°F (2011) | 32.0°F (1970) | 0.91 in (1980) |
| September 14 | 95.0°F (2009) | 37.0°F (1934) | 0.46 in (1959) |
| September 15 | 95.0°F (1937) | 35.1°F (1936) | 0.23 in (1959) |
| September 16 | 95.0°F (1938) | 34.0°F (1936) | 0.83 in (1986) |
| September 17 | 96.1°F (1938) | 37.9°F (1936) | 0.66 in (1954) |
| September 18 | 96.1°F (1938) | 37.0°F (1944) | 0.90 in (1986) |
| September 19 | 91.9°F (1952) | 37.9°F (1983) | 0.24 in (2010) |
| September 20 | 93.0°F (1967) | 36.0°F (1983) | 0.15 in (1959) |
| September 21 | 91.9°F (1967) | 34.0°F (1932) | 0.19 in (1972) |
| September 22 | 93.9°F (1939) | 33.1°F (1932) | 0.70 in (1973) |
| September 23 | 90.0°F (1939) | 34.0°F (1931) | 1.17 in (1934) |
| September 24 | 90.0°F (1939) | 32.0°F (1933) | 0.31 in (2020) |
| September 25 | 91.0°F (2009) | 30.9°F (1933) | 0.40 in (1977) |
| September 26 | 89.1°F (1942) | 35.1°F (1933) | 0.77 in (1948) |
| September 27 | 89.1°F (1942) | 30.9°F (1972) | 0.94 in (1940) |
| September 28 | 88.0°F (1942) | 34.0°F (1984) | 0.36 in (1977) |
| September 29 | 88.0°F (1967) | 32.0°F (1985) | 0.17 in (1944) |
| September 30 | 87.1°F (1963) | 32.0°F (1933) | 0.12 in (1951) |