July weather in St. Marys, GA
The average temperature in St. Marys in July is 81.2°F (73.5°F–88.8°F). Average precipitation: 4.58 inches.
July is a summer month in St. Marys, and is warmer than the annual average of 67.8°F. Daily temperatures swing about 15.3°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 13h 49m. For travel, July is hot.
Avg High
88.8°F
Avg Low
73.5°F
Precipitation
4.58 in
Daylight
13h 49m
July records in St. Marys
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 97.0°F (2019) | 69.3°F (2011) | 0.39 in (2013) |
| July 2 | 95.5°F (2009) | 65.1°F (2008) | 1.00 in (2007) |
| July 3 | 94.3°F (2017) | 68.5°F (2008) | 0.69 in (2023) |
| July 4 | 94.6°F (2016) | 69.4°F (2011) | 1.17 in (2018) |
| July 5 | 95.5°F (2016) | 70.2°F (2015) | 1.42 in (2008) |
| July 6 | 96.3°F (2016) | 69.1°F (2015) | 1.75 in (2006) |
| July 7 | 96.6°F (2016) | 66.9°F (2010) | 2.43 in (2021) |
| July 8 | 97.7°F (2016) | 68.0°F (2010) | 0.78 in (2011) |
| July 9 | 99.3°F (2010) | 65.5°F (2006) | 1.29 in (2009) |
| July 10 | 97.9°F (2010) | 69.8°F (2009) | 0.57 in (2025) |
| July 11 | 94.8°F (2007) | 70.0°F (2008) | 1.59 in (2025) |
| July 12 | 94.8°F (2024) | 69.4°F (2009) | 4.43 in (2014) |
| July 13 | 96.6°F (2024) | 70.2°F (2008) | 0.75 in (2007) |
| July 14 | 95.9°F (2024) | 70.2°F (2008) | 0.73 in (2025) |
| July 15 | 95.5°F (2019) | 71.2°F (2008) | 0.44 in (2024) |
| July 16 | 96.3°F (2006) | 70.5°F (2014) | 1.31 in (2024) |
| July 17 | 93.9°F (2019) | 69.4°F (2007) | 1.11 in (2017) |
| July 18 | 94.3°F (2007) | 67.5°F (2011) | 1.10 in (2008) |
| July 19 | 94.8°F (2007) | 65.8°F (2011) | 1.27 in (2021) |
| July 20 | 97.0°F (2011) | 68.5°F (2019) | 1.15 in (2024) |
| July 21 | 97.5°F (2023) | 68.7°F (2009) | 1.40 in (2014) |
| July 22 | 96.4°F (2023) | 70.0°F (2009) | 0.50 in (2007) |
| July 23 | 95.7°F (2015) | 70.2°F (2018) | 2.96 in (2015) |
| July 24 | 94.3°F (2012) | 68.4°F (2018) | 2.15 in (2018) |
| July 25 | 96.4°F (2011) | 69.1°F (2009) | 0.55 in (2009) |
| July 26 | 93.9°F (2006) | 70.9°F (2023) | 2.15 in (2017) |
| July 27 | 96.4°F (2025) | 71.1°F (2009) | 1.11 in (2019) |
| July 28 | 97.9°F (2025) | 69.8°F (2009) | 1.16 in (2023) |
| July 29 | 98.4°F (2016) | 70.5°F (2019) | 0.74 in (2008) |
| July 30 | 98.6°F (2010) | 68.2°F (2019) | 0.69 in (2012) |
| July 31 | 95.7°F (2025) | 70.0°F (2014) | 2.21 in (2005) |