October weather in Placentia, CA
The average temperature in Placentia in October is 71.3°F (59.3°F–83.4°F). Average precipitation: 0.62 inches.
October is a fall month in Placentia, and is warmer than the annual average of 67.7°F. Daily temperatures swing about 24.1°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 11h 8m. For travel, October is a comfortable month to visit.
Avg High
83.4°F
Avg Low
59.3°F
Precipitation
0.62 in
Daylight
11h 8m
October records in Placentia
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 100.9°F (1991) | 54.0°F (1989) | 0.12 in (2010) |
| October 2 | 100.9°F (2012) | 48.9°F (2002) | 0.00 in (1989) |
| October 3 | 102.9°F (2014) | 50.0°F (2002) | 0.02 in (2018) |
| October 4 | 98.1°F (2014) | 52.0°F (2002) | 0.54 in (2015) |
| October 5 | 99.0°F (2020) | 53.1°F (2009) | 0.95 in (2011) |
| October 6 | 98.1°F (2017) | 48.9°F (2011) | 0.39 in (2010) |
| October 7 | 105.1°F (2008) | 50.0°F (2011) | 0.36 in (2010) |
| October 8 | 100.0°F (2008) | 51.1°F (1998) | 0.04 in (2021) |
| October 9 | 104.0°F (2015) | 52.0°F (1998) | 0.08 in (2013) |
| October 10 | 107.1°F (1991) | 48.9°F (2013) | 0.16 in (2013) |
| October 11 | 104.0°F (1991) | 51.1°F (2000) | 0.79 in (2000) |
| October 12 | 105.1°F (2011) | 48.9°F (2008) | 0.02 in (2012) |
| October 13 | 102.9°F (2011) | 48.9°F (2000) | 0.62 in (2018) |
| October 14 | 96.1°F (2020) | 51.1°F (2000) | 1.32 in (2025) |
| October 15 | 100.9°F (2017) | 51.1°F (2000) | 0.50 in (2009) |
| October 16 | 100.0°F (2017) | 50.0°F (1994) | 0.16 in (2022) |
| October 17 | 96.1°F (1997) | 51.1°F (1994) | 1.83 in (2004) |
| October 18 | 96.1°F (2022) | 51.1°F (1997) | 0.10 in (2010) |
| October 19 | 99.0°F (2022) | 50.0°F (1994) | 0.45 in (2004) |
| October 20 | 100.9°F (1999) | 46.9°F (2002) | 1.98 in (2004) |
| October 21 | 99.0°F (2003) | 50.0°F (1994) | 0.35 in (2004) |
| October 22 | 102.9°F (2019) | 52.0°F (2004) | 0.30 in (1989) |
| October 23 | 105.1°F (2017) | 48.0°F (1996) | 0.10 in (2021) |
| October 24 | 104.0°F (2017) | 48.9°F (1995) | 0.81 in (2016) |
| October 25 | 102.0°F (2017) | 50.0°F (1995) | 0.20 in (2021) |
| October 26 | 98.1°F (2017) | 46.9°F (1996) | 0.12 in (2000) |
| October 27 | 95.0°F (2003) | 48.0°F (1991) | 2.20 in (2004) |
| October 28 | 97.0°F (2008) | 45.0°F (2002) | 0.04 in (2004) |
| October 29 | 93.9°F (2008) | 44.1°F (2009) | 0.01 in (2013) |
| October 30 | 93.0°F (1999) | 48.0°F (2009) | 1.13 in (1996) |
| October 31 | 93.0°F (1999) | 46.0°F (2002) | 0.01 in (1996) |