September weather in Sierra Madre, CA
The average temperature in Sierra Madre in September is 70.0°F (59.0°F–80.9°F). Average precipitation: 0.32 inches.
September is a fall month in Sierra Madre, and is warmer than the annual average of 58.4°F. Daily temperatures swing about 21.9°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 12m. For travel, September is a comfortable month to visit.
Avg High
80.9°F
Avg Low
59.0°F
Precipitation
0.32 in
Daylight
12h 12m
September records in Sierra Madre
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (2007) | 39.0°F (1964) | 0.02 in (1998) |
| September 2 | 98.1°F (1950) | 39.9°F (2000) | 1.10 in (1967) |
| September 3 | 97.0°F (2007) | 45.0°F (1985) | 0.19 in (1972) |
| September 4 | 93.9°F (2010) | 39.9°F (1985) | 0.74 in (1963) |
| September 5 | 97.0°F (2024) | 45.0°F (1970) | 0.64 in (1978) |
| September 6 | 97.0°F (2024) | 44.1°F (1965) | 1.89 in (1978) |
| September 7 | 93.9°F (2004) | 37.0°F (1965) | 0.02 in (1976) |
| September 8 | 93.9°F (2012) | 44.1°F (1965) | 0.20 in (2014) |
| September 9 | 93.9°F (1993) | 39.0°F (2010) | 0.04 in (1976) |
| September 10 | 93.0°F (1993) | 39.0°F (1952) | 5.34 in (1976) |
| September 11 | 91.9°F (1979) | 34.0°F (1952) | 5.40 in (1976) |
| September 12 | 93.9°F (1971) | 43.0°F (1952) | 0.07 in (1959) |
| September 13 | 93.9°F (1971) | 41.0°F (1966) | 0.12 in (2016) |
| September 14 | 93.9°F (2014) | 43.0°F (2016) | 0.19 in (1978) |
| September 15 | 93.9°F (2008) | 42.1°F (1959) | 3.34 in (2015) |
| September 16 | 93.0°F (2000) | 39.0°F (1959) | 0.98 in (1984) |
| September 17 | 91.0°F (2000) | 37.0°F (1977) | 0.82 in (1963) |
| September 18 | 93.0°F (2016) | 37.9°F (1955) | 0.51 in (1963) |
| September 19 | 91.9°F (2000) | 35.1°F (1989) | 1.36 in (1963) |
| September 20 | 90.0°F (2012) | 35.1°F (2007) | 0.51 in (1988) |
| September 21 | 93.9°F (2003) | 36.0°F (1988) | 0.49 in (1988) |
| September 22 | 93.0°F (2003) | 37.0°F (2007) | 1.24 in (2007) |
| September 23 | 96.1°F (2003) | 37.0°F (2007) | 0.69 in (2000) |
| September 24 | 91.0°F (2015) | 39.0°F (1948) | 0.11 in (1987) |
| September 25 | 91.9°F (2009) | 34.0°F (1948) | 1.79 in (1997) |
| September 26 | 95.0°F (2003) | 35.1°F (1971) | 3.42 in (1982) |
| September 27 | 97.0°F (2010) | 37.9°F (1982) | 0.07 in (1998) |
| September 28 | 93.9°F (2003) | 35.1°F (1965) | 0.27 in (1991) |
| September 29 | 88.0°F (1980) | 39.9°F (1998) | 0.47 in (1983) |
| September 30 | 91.9°F (1980) | 37.0°F (1982) | 3.33 in (1983) |