October weather in Vacaville, CA
The average temperature in Vacaville in October is 64.5°F (49.1°F–79.9°F). Average precipitation: 1.08 inches.
October is a fall month in Vacaville, and is warmer than the annual average of 62.1°F. Daily temperatures swing about 30.8°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 10h 58m. For travel, October is a comfortable month to visit.
Avg High
79.9°F
Avg Low
49.1°F
Precipitation
1.08 in
Daylight
10h 58m
October records in Vacaville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 104.0°F (2001) | 39.9°F (2019) | 0.01 in (2025) |
| October 2 | 104.0°F (2024) | 39.9°F (2019) | 0.10 in (2025) |
| October 3 | 102.0°F (2024) | 41.0°F (2019) | 0.13 in (2008) |
| October 4 | 99.0°F (2024) | 42.1°F (2019) | 0.26 in (2011) |
| October 5 | 100.9°F (2024) | 44.1°F (2019) | 0.56 in (2011) |
| October 6 | 104.0°F (2024) | 41.0°F (2013) | 0.19 in (2011) |
| October 7 | 102.0°F (2024) | 43.0°F (2011) | 0.00 in (1998) |
| October 8 | 100.9°F (2024) | 46.0°F (2011) | 0.00 in (1998) |
| October 9 | 93.9°F (2015) | 46.0°F (2021) | 0.54 in (2007) |
| October 10 | 93.9°F (2022) | 43.0°F (2021) | 0.27 in (2007) |
| October 11 | 95.0°F (2010) | 41.0°F (1998) | 0.30 in (2000) |
| October 12 | 95.0°F (2015) | 37.9°F (2019) | 0.56 in (2007) |
| October 13 | 98.1°F (2015) | 39.9°F (2019) | 4.23 in (2009) |
| October 14 | 97.0°F (2020) | 39.0°F (2019) | 0.33 in (2016) |
| October 15 | 95.0°F (2010) | 37.9°F (2019) | 0.27 in (2016) |
| October 16 | 96.1°F (2020) | 39.0°F (2018) | 0.62 in (2016) |
| October 17 | 96.1°F (2020) | 41.0°F (2002) | 0.23 in (2004) |
| October 18 | 93.9°F (2020) | 41.0°F (1998) | 0.78 in (2015) |
| October 19 | 93.9°F (2023) | 37.9°F (2021) | 1.24 in (2004) |
| October 20 | 93.0°F (2020) | 43.0°F (2013) | 0.08 in (2004) |
| October 21 | 93.0°F (2020) | 41.0°F (2017) | 0.08 in (2012) |
| October 22 | 89.1°F (2019) | 42.1°F (2018) | 0.80 in (2012) |
| October 23 | 90.0°F (2003) | 41.0°F (2018) | 0.19 in (2004) |
| October 24 | 91.9°F (2017) | 39.0°F (2002) | 1.30 in (2010) |
| October 25 | 93.9°F (2003) | 39.9°F (2013) | 0.69 in (2000) |
| October 26 | 93.9°F (2003) | 39.0°F (2023) | 0.90 in (2000) |
| October 27 | 93.0°F (2003) | 35.1°F (2023) | 0.54 in (2016) |
| October 28 | 90.0°F (2003) | 34.0°F (2023) | 0.58 in (2000) |
| October 29 | 84.0°F (2025) | 37.0°F (2019) | 0.13 in (2000) |
| October 30 | 87.1°F (2015) | 34.0°F (2023) | 0.49 in (2001) |
| October 31 | 88.0°F (2015) | 33.1°F (2019) | 0.45 in (2014) |