September weather in Willows, CA
The average temperature in Willows in September is 74.7°F (58.4°F–91.0°F). Average precipitation: 0.22 inches.
September is a fall month in Willows, and is warmer than the annual average of 63.7°F. Daily temperatures swing about 32.6°F between overnight low and afternoon high. Daylight averages about 12h 15m. For travel, September is hot.
Avg High
91.0°F
Avg Low
58.4°F
Precipitation
0.22 in
Daylight
12h 15m
September records in Willows
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 109.9°F (2017) | 48.0°F (1925) | 0.99 in (1924) |
| September 2 | 115.0°F (1950) | 48.9°F (2012) | 0.08 in (2000) |
| September 3 | 113.0°F (1988) | 48.9°F (1957) | 0.99 in (1924) |
| September 4 | 111.0°F (1950) | 45.0°F (1914) | 0.05 in (1940) |
| September 5 | 111.0°F (2022) | 44.1°F (1938) | 0.57 in (1912) |
| September 6 | 111.0°F (2022) | 45.0°F (2002) | 2.60 in (1912) |
| September 7 | 111.0°F (2022) | 46.0°F (1918) | 0.36 in (1919) |
| September 8 | 111.0°F (2022) | 44.1°F (1946) | 0.63 in (1985) |
| September 9 | 108.0°F (1944) | 45.0°F (2002) | 0.24 in (1942) |
| September 10 | 109.0°F (1944) | 42.1°F (1994) | 0.09 in (1985) |
| September 11 | 111.9°F (1953) | 42.1°F (1994) | 0.17 in (1918) |
| September 12 | 102.9°F (1913) | 45.0°F (1985) | 1.26 in (1918) |
| September 13 | 105.1°F (1945) | 44.1°F (1910) | 0.31 in (1918) |
| September 14 | 109.0°F (1953) | 45.0°F (1973) | 0.08 in (1997) |
| September 15 | 107.1°F (1934) | 43.0°F (1986) | 0.48 in (1910) |
| September 16 | 108.0°F (1913) | 42.1°F (2015) | 1.74 in (1989) |
| September 17 | 108.0°F (1913) | 45.0°F (1921) | 0.37 in (1948) |
| September 18 | 105.1°F (1913) | 45.0°F (1954) | 1.15 in (1959) |
| September 19 | 106.0°F (2000) | 45.0°F (1914) | 0.40 in (2022) |
| September 20 | 107.1°F (2000) | 45.0°F (1925) | 0.55 in (1925) |
| September 21 | 107.1°F (1987) | 45.0°F (1924) | 0.23 in (1923) |
| September 22 | 106.0°F (1943) | 44.1°F (1924) | 0.51 in (2013) |
| September 23 | 106.0°F (1943) | 41.0°F (1917) | 0.15 in (1990) |
| September 24 | 102.0°F (1964) | 43.0°F (1920) | 0.85 in (1923) |
| September 25 | 104.0°F (1964) | 39.0°F (1986) | 0.54 in (2001) |
| September 26 | 105.1°F (1944) | 42.1°F (1971) | 0.65 in (2014) |
| September 27 | 106.0°F (1944) | 41.0°F (1971) | 1.38 in (1957) |
| September 28 | 100.9°F (1958) | 35.1°F (1999) | 0.68 in (1957) |
| September 29 | 105.1°F (2010) | 42.1°F (1929) | 0.67 in (1989) |
| September 30 | 106.0°F (1966) | 37.0°F (1971) | 0.28 in (1983) |