September weather in Willcox, AZ
The average temperature in Willcox in September is 73.8°F (57.3°F–90.4°F). Average precipitation: 1.21 inches.
September is a fall month in Willcox, and is warmer than the annual average of 62.3°F. Daily temperatures swing about 33.1°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 11m. For travel, September is hot.
Avg High
90.4°F
Avg Low
57.3°F
Precipitation
1.21 in
Daylight
12h 11m
September records in Willcox
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (2011) | 46.0°F (1978) | 0.93 in (1933) |
| September 2 | 102.9°F (2011) | 46.9°F (1955) | 0.42 in (1936) |
| September 3 | 104.0°F (1948) | 46.9°F (1955) | 1.77 in (2018) |
| September 4 | 105.1°F (1929) | 44.1°F (1961) | 1.12 in (1911) |
| September 5 | 104.0°F (1945) | 41.0°F (1921) | 0.50 in (1902) |
| September 6 | 100.9°F (1945) | 43.0°F (1921) | 0.40 in (1976) |
| September 7 | 102.0°F (2019) | 41.0°F (1921) | 1.65 in (1919) |
| September 8 | 102.0°F (2020) | 41.0°F (1921) | 1.60 in (1975) |
| September 9 | 102.0°F (2023) | 37.9°F (1920) | 0.75 in (1971) |
| September 10 | 102.9°F (2023) | 39.9°F (1920) | 0.79 in (1982) |
| September 11 | 102.0°F (2023) | 41.0°F (1920) | 1.15 in (1984) |
| September 12 | 99.0°F (1956) | 43.0°F (1920) | 0.98 in (1927) |
| September 13 | 100.9°F (2017) | 39.9°F (1950) | 1.43 in (1966) |
| September 14 | 100.0°F (1952) | 39.0°F (1950) | 1.49 in (2001) |
| September 15 | 100.0°F (1956) | 36.0°F (1950) | 1.05 in (1966) |
| September 16 | 102.0°F (1956) | 37.9°F (1970) | 0.99 in (1955) |
| September 17 | 100.9°F (1956) | 39.0°F (1928) | 0.45 in (1920) |
| September 18 | 100.0°F (1915) | 39.0°F (1968) | 1.30 in (2014) |
| September 19 | 100.9°F (2010) | 39.9°F (1915) | 0.96 in (1985) |
| September 20 | 98.1°F (1916) | 39.9°F (1957) | 1.53 in (2018) |
| September 21 | 100.0°F (1944) | 30.0°F (1965) | 1.17 in (1929) |
| September 22 | 98.1°F (1916) | 33.1°F (1965) | 0.58 in (1937) |
| September 23 | 98.1°F (1953) | 33.1°F (1930) | 0.83 in (1981) |
| September 24 | 98.1°F (1947) | 34.0°F (1968) | 1.50 in (1929) |
| September 25 | 98.1°F (1916) | 33.1°F (1970) | 0.98 in (1954) |
| September 26 | 100.0°F (1915) | 35.1°F (1913) | 0.82 in (1944) |
| September 27 | 100.9°F (2024) | 36.0°F (1913) | 1.67 in (1946) |
| September 28 | 102.0°F (2024) | 35.1°F (1904) | 2.11 in (1941) |
| September 29 | 102.0°F (2024) | 33.1°F (1934) | 0.72 in (1983) |
| September 30 | 100.0°F (2010) | 32.0°F (1965) | 1.57 in (1983) |