September weather in Ripon, CA
The average temperature in Ripon in September is 73.9°F (57.5°F–90.4°F). Average precipitation: 0.08 inches.
September is a fall month in Ripon, and is warmer than the annual average of 63°F. Daily temperatures swing about 32.9°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 14m. For travel, September is hot.
Avg High
90.4°F
Avg Low
57.5°F
Precipitation
0.08 in
Daylight
12h 14m
September records in Ripon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 109.0°F (2017) | 48.0°F (1964) | 0.07 in (2000) |
| September 2 | 109.9°F (2017) | 48.9°F (1951) | 0.01 in (2000) |
| September 3 | 109.0°F (2017) | 50.0°F (1951) | 0.00 in (1949) |
| September 4 | 105.1°F (1988) | 48.9°F (2000) | 0.05 in (1972) |
| September 5 | 111.9°F (2022) | 50.0°F (2000) | 0.38 in (1978) |
| September 6 | 115.0°F (2022) | 48.9°F (1951) | 0.00 in (1949) |
| September 7 | 111.0°F (2020) | 48.9°F (2002) | 0.22 in (1969) |
| September 8 | 111.9°F (2022) | 48.0°F (2002) | 0.07 in (1985) |
| September 9 | 106.0°F (2015) | 48.9°F (1964) | 0.07 in (1978) |
| September 10 | 108.0°F (2015) | 46.9°F (1985) | 0.05 in (1960) |
| September 11 | 102.9°F (1979) | 48.0°F (1952) | 0.00 in (1949) |
| September 12 | 108.0°F (1979) | 48.0°F (1985) | 0.26 in (1963) |
| September 13 | 105.1°F (1971) | 46.0°F (2016) | 0.06 in (2009) |
| September 14 | 104.0°F (1971) | 48.0°F (1980) | 0.17 in (2009) |
| September 15 | 106.0°F (1979) | 48.0°F (2010) | 0.14 in (1982) |
| September 16 | 105.1°F (1979) | 48.0°F (1980) | 1.31 in (1989) |
| September 17 | 100.0°F (1984) | 48.9°F (2006) | 0.28 in (1950) |
| September 18 | 102.0°F (2000) | 45.0°F (1965) | 2.64 in (1959) |
| September 19 | 102.0°F (2000) | 46.0°F (1965) | 0.52 in (1977) |
| September 20 | 100.9°F (2000) | 46.0°F (1978) | 0.29 in (2005) |
| September 21 | 102.0°F (2015) | 46.9°F (1960) | 0.27 in (2013) |
| September 22 | 102.0°F (1949) | 46.0°F (2017) | 1.38 in (1983) |
| September 23 | 100.9°F (2002) | 45.0°F (1954) | 0.43 in (1982) |
| September 24 | 102.0°F (2024) | 46.0°F (2017) | 0.68 in (1986) |
| September 25 | 100.0°F (1952) | 46.9°F (1955) | 1.13 in (1982) |
| September 26 | 100.0°F (1952) | 46.9°F (1955) | 0.31 in (1972) |
| September 27 | 100.0°F (2009) | 46.9°F (1955) | 0.30 in (1972) |
| September 28 | 102.0°F (2010) | 45.0°F (1986) | 0.67 in (1989) |
| September 29 | 102.0°F (2010) | 45.0°F (1955) | 0.19 in (1971) |
| September 30 | 100.0°F (2020) | 42.1°F (1950) | 0.22 in (1983) |