September weather in Washtucna, WA
The average temperature in Washtucna in September is 64.2°F (49.8°F–78.6°F). Average precipitation: 0.39 inches.
September is a fall month in Washtucna, and is warmer than the annual average of 51.8°F. Daily temperatures swing about 28.8°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
78.6°F
Avg Low
49.8°F
Precipitation
0.39 in
Daylight
12h 19m
September records in Washtucna
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1950) | 27.0°F (1910) | 0.43 in (1971) |
| September 2 | 102.0°F (1950) | 36.0°F (1917) | 0.60 in (1941) |
| September 3 | 100.0°F (1988) | 32.0°F (1958) | 0.32 in (1979) |
| September 4 | 100.0°F (1988) | 34.0°F (1912) | 0.35 in (1936) |
| September 5 | 99.0°F (1955) | 32.0°F (1917) | 1.03 in (2015) |
| September 6 | 100.0°F (1944) | 33.1°F (1913) | 0.48 in (1946) |
| September 7 | 99.0°F (1944) | 33.1°F (1939) | 1.05 in (1995) |
| September 8 | 99.0°F (1981) | 32.0°F (1922) | 0.23 in (2003) |
| September 9 | 97.0°F (1935) | 30.0°F (1913) | 0.27 in (2025) |
| September 10 | 97.0°F (1944) | 28.0°F (1906) | 0.47 in (2000) |
| September 11 | 100.9°F (1953) | 28.9°F (1910) | 0.55 in (1927) |
| September 12 | 97.0°F (1953) | 27.0°F (1921) | 0.53 in (1920) |
| September 13 | 97.0°F (1908) | 27.0°F (1921) | 0.97 in (1980) |
| September 14 | 95.0°F (1937) | 26.1°F (1917) | 0.67 in (2025) |
| September 15 | 96.1°F (1938) | 28.0°F (1936) | 0.79 in (1959) |
| September 16 | 97.0°F (1981) | 30.9°F (1965) | 0.62 in (1947) |
| September 17 | 100.0°F (1981) | 25.0°F (1965) | 0.79 in (1947) |
| September 18 | 100.0°F (1981) | 24.1°F (1965) | 0.48 in (1931) |
| September 19 | 98.1°F (1906) | 27.0°F (1957) | 0.48 in (1988) |
| September 20 | 97.0°F (1939) | 30.0°F (1928) | 0.45 in (1998) |
| September 21 | 93.0°F (1916) | 28.9°F (1961) | 0.92 in (1910) |
| September 22 | 93.9°F (1966) | 27.0°F (1961) | 0.49 in (1945) |
| September 23 | 93.0°F (1938) | 28.0°F (1911) | 0.57 in (1986) |
| September 24 | 95.0°F (1952) | 19.0°F (1926) | 0.33 in (1977) |
| September 25 | 98.1°F (1952) | 21.0°F (1934) | 0.25 in (1923) |
| September 26 | 93.0°F (1952) | 21.0°F (1908) | 0.53 in (1982) |
| September 27 | 93.0°F (1963) | 27.0°F (1908) | 0.39 in (1981) |
| September 28 | 96.1°F (1918) | 27.0°F (1983) | 0.55 in (1962) |
| September 29 | 95.0°F (1918) | 24.1°F (1983) | 0.33 in (1977) |
| September 30 | 89.1°F (1908) | 21.9°F (1933) | 0.78 in (2005) |