September weather in Toppenish, WA
The average temperature in Toppenish in September is 64.5°F (48.8°F–80.3°F). Average precipitation: 0.23 inches.
September is a fall month in Toppenish, and is warmer than the annual average of 52.3°F. Daily temperatures swing about 31.5°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
80.3°F
Avg Low
48.8°F
Precipitation
0.23 in
Daylight
12h 19m
September records in Toppenish
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1987) | 39.9°F (1926) | 0.61 in (1971) |
| September 2 | 99.0°F (1987) | 39.9°F (1984) | 0.29 in (1941) |
| September 3 | 99.0°F (1998) | 39.0°F (2000) | 0.15 in (1960) |
| September 4 | 99.0°F (1988) | 41.0°F (1926) | 0.33 in (1937) |
| September 5 | 99.0°F (1988) | 41.0°F (1922) | 0.30 in (1937) |
| September 6 | 98.1°F (2003) | 41.0°F (1939) | 0.41 in (1933) |
| September 7 | 100.9°F (1944) | 37.9°F (1992) | 0.48 in (1947) |
| September 8 | 98.1°F (1944) | 34.0°F (1926) | 0.27 in (1924) |
| September 9 | 97.0°F (1944) | 35.1°F (1983) | 0.24 in (1940) |
| September 10 | 95.0°F (1944) | 39.0°F (1916) | 0.65 in (1985) |
| September 11 | 97.0°F (1944) | 39.0°F (1986) | 0.52 in (1956) |
| September 12 | 97.0°F (1944) | 32.0°F (1921) | 0.20 in (1966) |
| September 13 | 95.0°F (2011) | 33.1°F (1921) | 0.41 in (1980) |
| September 14 | 98.1°F (1929) | 37.0°F (1936) | 0.30 in (1918) |
| September 15 | 95.0°F (1938) | 34.0°F (1970) | 0.33 in (1996) |
| September 16 | 97.0°F (1938) | 36.0°F (1982) | 0.71 in (1954) |
| September 17 | 98.1°F (1938) | 32.0°F (1965) | 0.15 in (1947) |
| September 18 | 97.0°F (1952) | 33.1°F (1965) | 0.62 in (1969) |
| September 19 | 95.0°F (1952) | 33.1°F (1983) | 0.33 in (1983) |
| September 20 | 93.0°F (1994) | 32.0°F (1983) | 0.47 in (1973) |
| September 21 | 93.9°F (1936) | 35.1°F (1929) | 0.08 in (1988) |
| September 22 | 93.0°F (1938) | 33.1°F (1955) | 0.20 in (1934) |
| September 23 | 91.0°F (1952) | 25.0°F (1926) | 0.38 in (1984) |
| September 24 | 95.0°F (1952) | 24.1°F (1926) | 0.40 in (1986) |
| September 25 | 91.9°F (1943) | 23.0°F (1926) | 0.60 in (1982) |
| September 26 | 91.9°F (2003) | 28.9°F (1926) | 0.34 in (1948) |
| September 27 | 91.0°F (2003) | 28.9°F (1924) | 0.61 in (1981) |
| September 28 | 90.0°F (1963) | 28.9°F (1983) | 0.35 in (1962) |
| September 29 | 90.0°F (1976) | 28.9°F (1983) | 0.15 in (1918) |
| September 30 | 90.0°F (1976) | 30.0°F (1954) | 0.40 in (1925) |