September weather in Gustine, CA
The average temperature in Gustine in September is 76.1°F (57.3°F–94.9°F). Average precipitation: 0.04 inches.
September is a fall month in Gustine, and is warmer than the annual average of 65°F. Daily temperatures swing about 37.6°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 13m. For travel, September is hot.
Avg High
94.9°F
Avg Low
57.3°F
Precipitation
0.04 in
Daylight
12h 13m
September records in Gustine
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 111.9°F (1903) | 39.9°F (1909) | 0.21 in (1921) |
| September 2 | 111.9°F (1903) | 44.1°F (2005) | 0.00 in (1902) |
| September 3 | 108.0°F (1955) | 43.0°F (2005) | 0.12 in (1912) |
| September 4 | 109.9°F (2024) | 41.0°F (1918) | 0.20 in (1940) |
| September 5 | 111.9°F (2022) | 41.0°F (1915) | 0.67 in (1978) |
| September 6 | 109.9°F (2020) | 39.9°F (1915) | 0.01 in (2002) |
| September 7 | 111.9°F (2020) | 41.0°F (1915) | 0.65 in (1969) |
| September 8 | 111.9°F (2022) | 41.0°F (2005) | 0.20 in (1985) |
| September 9 | 109.9°F (2022) | 39.9°F (2005) | 0.07 in (1975) |
| September 10 | 109.0°F (1951) | 44.1°F (1918) | 0.13 in (1978) |
| September 11 | 105.1°F (2015) | 44.1°F (1919) | 0.05 in (1918) |
| September 12 | 106.0°F (2014) | 43.0°F (1921) | 1.43 in (1918) |
| September 13 | 106.0°F (2014) | 21.9°F (1923) | 1.26 in (1918) |
| September 14 | 105.1°F (2014) | 16.0°F (1923) | 0.08 in (2009) |
| September 15 | 105.1°F (1989) | 42.1°F (1921) | 0.47 in (1910) |
| September 16 | 104.0°F (1958) | 41.0°F (1921) | 0.50 in (1989) |
| September 17 | 109.9°F (1913) | 44.1°F (2005) | 0.30 in (1982) |
| September 18 | 106.0°F (2016) | 42.1°F (1965) | 1.35 in (1959) |
| September 19 | 108.0°F (2016) | 41.0°F (2005) | 0.52 in (1959) |
| September 20 | 107.1°F (2015) | 39.0°F (2005) | 0.12 in (2005) |
| September 21 | 105.1°F (2015) | 37.0°F (2005) | 0.30 in (1918) |
| September 22 | 106.0°F (1949) | 35.1°F (2005) | 1.18 in (1983) |
| September 23 | 109.0°F (1921) | 35.1°F (2005) | 0.47 in (1904) |
| September 24 | 109.0°F (2024) | 42.1°F (1920) | 0.48 in (1939) |
| September 25 | 106.0°F (2024) | 39.0°F (1920) | 0.69 in (1939) |
| September 26 | 106.0°F (2016) | 39.9°F (1916) | 0.34 in (1938) |
| September 27 | 104.0°F (2009) | 39.9°F (1971) | 0.00 in (1902) |
| September 28 | 104.0°F (2016) | 42.1°F (1971) | 0.62 in (1976) |
| September 29 | 105.1°F (2020) | 41.0°F (1961) | 0.89 in (1989) |
| September 30 | 102.9°F (2010) | 42.1°F (1971) | 0.82 in (1983) |