July weather in St. Johns, AZ
The average temperature in St. Johns in July is 75.9°F (60.6°F–91.1°F). Average precipitation: 1.41 inches.
July is a summer month in St. Johns, and is warmer than the annual average of 54.1°F. Daily temperatures swing about 30.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 6m. For travel, July is hot.
Avg High
91.1°F
Avg Low
60.6°F
Precipitation
1.41 in
Daylight
14h 6m
July records in St. Johns
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 100.0°F (2005) | 50.0°F (2004) | 0.49 in (2015) |
| July 2 | 100.0°F (2007) | 48.0°F (2004) | 0.21 in (2013) |
| July 3 | 100.0°F (2007) | 52.0°F (2004) | 0.20 in (2021) |
| July 4 | 102.0°F (2003) | 51.1°F (2010) | 0.18 in (2002) |
| July 5 | 104.0°F (2003) | 54.0°F (2010) | 0.16 in (2021) |
| July 6 | 102.0°F (2003) | 55.0°F (2010) | 0.18 in (2006) |
| July 7 | 100.0°F (2003) | 57.0°F (2001) | 0.34 in (2006) |
| July 8 | 102.0°F (2003) | 54.0°F (2001) | 0.37 in (2002) |
| July 9 | 104.0°F (2003) | 51.1°F (2019) | 0.56 in (2015) |
| July 10 | 105.1°F (2003) | 54.0°F (2003) | 0.25 in (2011) |
| July 11 | 102.0°F (2003) | 54.0°F (2009) | 0.32 in (2018) |
| July 12 | 105.1°F (2003) | 52.0°F (2016) | 1.03 in (2008) |
| July 13 | 105.1°F (2003) | 54.0°F (2011) | 0.55 in (2018) |
| July 14 | 106.0°F (2003) | 53.1°F (2011) | 0.21 in (1999) |
| July 15 | 106.0°F (2005) | 51.1°F (2011) | 0.55 in (2018) |
| July 16 | 102.9°F (2005) | 55.9°F (2015) | 0.45 in (2012) |
| July 17 | 105.1°F (2005) | 53.1°F (2000) | 0.16 in (2018) |
| July 18 | 107.1°F (2005) | 55.9°F (2001) | 0.34 in (1999) |
| July 19 | 105.1°F (2005) | 59.0°F (2020) | 0.27 in (2011) |
| July 20 | 104.0°F (2005) | 55.0°F (2000) | 0.57 in (2010) |
| July 21 | 105.1°F (2005) | 54.0°F (2015) | 0.50 in (1999) |
| July 22 | 100.0°F (2003) | 57.0°F (2012) | 0.32 in (2021) |
| July 23 | 100.0°F (2003) | 55.9°F (2009) | 1.45 in (2021) |
| July 24 | 100.0°F (2003) | 55.0°F (2025) | 0.25 in (2003) |
| July 25 | 99.0°F (2006) | 52.0°F (2025) | 0.89 in (2019) |
| July 26 | 98.1°F (2006) | 55.0°F (2025) | 0.52 in (2014) |
| July 27 | 99.0°F (2006) | 55.0°F (2001) | 0.51 in (2012) |
| July 28 | 99.0°F (2016) | 53.1°F (2005) | 0.94 in (2003) |
| July 29 | 100.0°F (2005) | 57.0°F (2020) | 0.74 in (2017) |
| July 30 | 100.0°F (2020) | 55.9°F (2025) | 0.27 in (2011) |
| July 31 | 100.9°F (2020) | 55.0°F (2020) | 0.48 in (2001) |