October weather in St. Johns, AZ
The average temperature in St. Johns in October is 54.4°F (36.6°F–72.2°F). Average precipitation: 0.69 inches.
October is a fall month in St. Johns, and is warmer than the annual average of 54.1°F. Daily temperatures swing about 35.6°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 11h 7m. For travel, October is cool.
Avg High
72.2°F
Avg Low
36.6°F
Precipitation
0.69 in
Daylight
11h 7m
October records in St. Johns
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 91.9°F (2003) | 36.0°F (2009) | 0.23 in (2018) |
| October 2 | 88.0°F (2003) | 27.1°F (2009) | 0.20 in (2016) |
| October 3 | 88.0°F (2005) | 34.0°F (2014) | 0.59 in (2018) |
| October 4 | 88.0°F (2006) | 30.9°F (2002) | 0.40 in (2011) |
| October 5 | 86.0°F (2017) | 28.2°F (2013) | 0.53 in (2021) |
| October 6 | 84.9°F (2020) | 27.1°F (2013) | 0.13 in (2006) |
| October 7 | 86.0°F (2020) | 29.1°F (2007) | 0.59 in (2001) |
| October 8 | 84.9°F (2020) | 28.2°F (2007) | 0.46 in (2006) |
| October 9 | 84.0°F (2020) | 29.1°F (2011) | 0.30 in (2005) |
| October 10 | 82.9°F (1999) | 24.3°F (2017) | 0.11 in (2004) |
| October 11 | 82.9°F (2007) | 16.2°F (2019) | 0.40 in (2025) |
| October 12 | 82.9°F (2007) | 26.2°F (2013) | 0.10 in (2012) |
| October 13 | 84.9°F (2020) | 18.1°F (2008) | 0.63 in (2025) |
| October 14 | 84.9°F (2020) | 24.3°F (2008) | 0.10 in (2018) |
| October 15 | 84.9°F (2011) | 25.2°F (2017) | 0.17 in (2006) |
| October 16 | 84.0°F (2011) | 25.2°F (2021) | 0.14 in (2018) |
| October 17 | 84.9°F (2003) | 21.0°F (1999) | 0.43 in (2002) |
| October 18 | 86.0°F (2003) | 19.9°F (1999) | 0.09 in (2015) |
| October 19 | 87.1°F (2003) | 24.3°F (2013) | 0.33 in (2014) |
| October 20 | 84.9°F (2003) | 25.0°F (1999) | 0.56 in (2015) |
| October 21 | 87.1°F (2003) | 23.0°F (1999) | 0.25 in (2015) |
| October 22 | 87.1°F (2003) | 24.3°F (2007) | 0.10 in (2000) |
| October 23 | 82.9°F (2003) | 20.1°F (2008) | 0.80 in (2000) |
| October 24 | 80.1°F (2011) | 23.2°F (2008) | 0.05 in (2013) |
| October 25 | 82.0°F (2021) | 19.2°F (2019) | 0.22 in (2006) |
| October 26 | 79.0°F (2016) | 20.1°F (2009) | 0.24 in (2020) |
| October 27 | 82.9°F (2016) | 21.2°F (2012) | 0.41 in (2000) |
| October 28 | 81.0°F (2016) | 20.1°F (2020) | 0.38 in (2000) |
| October 29 | 80.1°F (2010) | 18.1°F (2019) | 0.13 in (2015) |
| October 30 | 80.1°F (2001) | 16.2°F (2019) | 0.13 in (2018) |
| October 31 | 77.0°F (2014) | 6.3°F (2019) | 0.23 in (2000) |