July weather in Mertzon, TX
The average temperature in Mertzon in July is 81.9°F (69.6°F–94.2°F). Average precipitation: 1.90 inches.
July is a summer month in Mertzon, and is warmer than the annual average of 63.9°F. Daily temperatures swing about 24.6°F between overnight low and afternoon high. Daylight averages about 13h 51m. For travel, July is hot.
Avg High
94.2°F
Avg Low
69.6°F
Precipitation
1.90 in
Daylight
13h 51m
July records in Mertzon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 100.0°F (2017) | 48.0°F (2015) | 1.27 in (2017) |
| July 2 | 105.1°F (2020) | 57.9°F (2013) | 1.14 in (2020) |
| July 3 | 100.9°F (2018) | 53.1°F (2013) | 0.75 in (2010) |
| July 4 | 102.0°F (2016) | 54.0°F (2013) | 0.09 in (2008) |
| July 5 | 104.0°F (2016) | 62.1°F (2013) | 1.29 in (2010) |
| July 6 | 102.0°F (2016) | 64.0°F (2008) | 0.18 in (2017) |
| July 7 | 102.0°F (2022) | 63.0°F (2009) | 2.00 in (2019) |
| July 8 | 102.9°F (2022) | 63.0°F (2009) | 1.79 in (2015) |
| July 9 | 104.0°F (2009) | 46.9°F (2015) | 0.84 in (2018) |
| July 10 | 105.1°F (2009) | 41.0°F (2015) | 0.59 in (2010) |
| July 11 | 105.1°F (2023) | 51.1°F (2015) | 0.35 in (2012) |
| July 12 | 106.0°F (2022) | 64.0°F (2014) | 1.85 in (2021) |
| July 13 | 109.0°F (2023) | 62.1°F (2019) | 0.00 in (2008) |
| July 14 | 108.0°F (2023) | 62.1°F (2019) | 0.00 in (2008) |
| July 15 | 106.0°F (2020) | 62.1°F (2013) | 1.10 in (2022) |
| July 16 | 102.9°F (2009) | 62.1°F (2013) | 0.85 in (2013) |
| July 17 | 102.9°F (2023) | 64.9°F (2013) | 0.86 in (2013) |
| July 18 | 105.1°F (2023) | 66.9°F (2014) | 0.63 in (2017) |
| July 19 | 108.0°F (2023) | 64.9°F (2014) | 0.96 in (2009) |
| July 20 | 106.0°F (2022) | 66.0°F (2014) | 0.25 in (2021) |
| July 21 | 105.1°F (2022) | 63.0°F (2021) | 0.02 in (2009) |
| July 22 | 104.0°F (2018) | 59.0°F (2015) | 0.00 in (2008) |
| July 23 | 104.0°F (2018) | 64.0°F (2008) | 0.56 in (2009) |
| July 24 | 105.1°F (2018) | 54.0°F (2019) | 0.11 in (2009) |
| July 25 | 102.9°F (2023) | 54.0°F (2019) | 0.47 in (2017) |
| July 26 | 100.9°F (2011) | 53.1°F (2019) | 0.00 in (2008) |
| July 27 | 100.9°F (2011) | 53.1°F (2019) | 0.84 in (2012) |
| July 28 | 102.9°F (2008) | 60.1°F (2019) | 0.00 in (2008) |
| July 29 | 104.0°F (2008) | 60.1°F (2019) | 0.65 in (2021) |
| July 30 | 100.9°F (2008) | 66.0°F (2023) | 0.22 in (2009) |
| July 31 | 100.9°F (2014) | 66.0°F (2009) | 0.89 in (2017) |