September weather in Tracy, CA
The average temperature in Tracy in September is 71.0°F (53.5°F–88.5°F). Average precipitation: 0.08 inches.
September is a fall month in Tracy, and is warmer than the annual average of 61°F. Daily temperatures swing about 35°F between overnight low and afternoon high. Daylight averages about 12h 14m. For travel, September is hot.
Avg High
88.5°F
Avg Low
53.5°F
Precipitation
0.08 in
Daylight
12h 14m
September records in Tracy
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.9°F (1950) | 45.0°F (1951) | 0.09 in (1964) |
| September 2 | 108.0°F (1950) | 48.0°F (1970) | 0.03 in (2000) |
| September 3 | 106.0°F (1950) | 45.0°F (1951) | 0.00 in (1906) |
| September 4 | 105.1°F (1950) | 43.0°F (1954) | 0.00 in (1906) |
| September 5 | 106.0°F (1988) | 46.0°F (1965) | 0.02 in (1912) |
| September 6 | 107.1°F (2022) | 45.0°F (2015) | 0.17 in (1912) |
| September 7 | 111.9°F (2022) | 41.0°F (1964) | 0.18 in (1969) |
| September 8 | 106.0°F (2022) | 46.9°F (1951) | 0.13 in (1969) |
| September 9 | 108.0°F (2022) | 45.0°F (1964) | 0.06 in (1985) |
| September 10 | 104.0°F (1984) | 41.0°F (1985) | 0.11 in (1960) |
| September 11 | 104.0°F (2015) | 42.1°F (1985) | 0.02 in (1952) |
| September 12 | 100.0°F (1960) | 39.9°F (1985) | 0.00 in (1906) |
| September 13 | 102.0°F (1971) | 41.0°F (1996) | 0.27 in (1963) |
| September 14 | 104.0°F (1971) | 39.9°F (1964) | 0.28 in (2009) |
| September 15 | 102.0°F (1971) | 46.0°F (1969) | 0.15 in (1910) |
| September 16 | 102.9°F (1971) | 46.0°F (1960) | 0.25 in (1982) |
| September 17 | 102.9°F (1971) | 37.9°F (1988) | 1.09 in (1989) |
| September 18 | 98.1°F (1984) | 45.0°F (1965) | 0.41 in (1959) |
| September 19 | 100.0°F (1984) | 43.0°F (2019) | 1.90 in (1959) |
| September 20 | 100.0°F (2000) | 44.1°F (2019) | 0.41 in (1977) |
| September 21 | 99.0°F (2000) | 42.1°F (1954) | 0.13 in (1999) |
| September 22 | 99.0°F (2015) | 39.9°F (1986) | 0.23 in (2013) |
| September 23 | 98.1°F (2009) | 44.1°F (2017) | 0.22 in (2007) |
| September 24 | 98.1°F (1991) | 45.0°F (1955) | 0.62 in (1982) |
| September 25 | 100.0°F (2024) | 41.0°F (1988) | 0.48 in (1982) |
| September 26 | 98.1°F (1952) | 37.9°F (1988) | 0.45 in (1982) |
| September 27 | 99.0°F (2009) | 39.0°F (1988) | 0.33 in (1972) |
| September 28 | 98.1°F (1963) | 45.0°F (1955) | 0.22 in (1972) |
| September 29 | 98.1°F (2010) | 37.0°F (2021) | 1.17 in (1976) |
| September 30 | 100.9°F (1966) | 39.0°F (1995) | 0.63 in (1983) |