August weather in Petersburg, TX
The average temperature in Petersburg in August is 78.1°F (65.6°F–90.5°F). Average precipitation: 2.00 inches.
August is a summer month in Petersburg, and is warmer than the annual average of 59.3°F. Daily temperatures swing about 24.9°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 13h 16m. For travel, August is hot.
Avg High
90.5°F
Avg Low
65.6°F
Precipitation
2.00 in
Daylight
13h 16m
August records in Petersburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (2022) | 57.9°F (2018) | 1.29 in (1995) |
| August 2 | 100.9°F (2012) | 60.1°F (2014) | 1.71 in (1975) |
| August 3 | 102.9°F (2012) | 57.0°F (2021) | 0.99 in (1954) |
| August 4 | 104.0°F (2022) | 55.9°F (2021) | 1.21 in (1998) |
| August 5 | 102.0°F (2003) | 59.0°F (2021) | 2.38 in (1957) |
| August 6 | 102.0°F (2023) | 62.1°F (2014) | 0.96 in (1974) |
| August 7 | 102.9°F (2023) | 62.1°F (1979) | 1.74 in (1945) |
| August 8 | 104.0°F (2024) | 64.0°F (2004) | 1.08 in (1949) |
| August 9 | 102.9°F (2003) | 63.0°F (2013) | 1.47 in (2024) |
| August 10 | 102.0°F (2025) | 62.1°F (2007) | 1.48 in (1983) |
| August 11 | 102.0°F (2023) | 57.0°F (1979) | 0.94 in (1984) |
| August 12 | 105.1°F (2023) | 55.0°F (1979) | 3.28 in (2017) |
| August 13 | 106.0°F (2023) | 55.0°F (1979) | 1.17 in (1997) |
| August 14 | 106.0°F (2020) | 57.9°F (2003) | 1.47 in (2017) |
| August 15 | 105.1°F (2020) | 59.0°F (2016) | 1.48 in (1986) |
| August 16 | 100.9°F (2020) | 60.1°F (2008) | 1.84 in (2008) |
| August 17 | 102.0°F (2023) | 57.0°F (2004) | 1.35 in (1979) |
| August 18 | 105.1°F (2023) | 57.0°F (2004) | 2.58 in (1982) |
| August 19 | 104.0°F (2023) | 59.0°F (2008) | 1.17 in (1961) |
| August 20 | 100.9°F (2019) | 54.0°F (2015) | 1.27 in (1991) |
| August 21 | 100.9°F (2024) | 57.9°F (2015) | 3.22 in (1967) |
| August 22 | 104.0°F (2024) | 59.0°F (1979) | 2.59 in (1951) |
| August 23 | 107.1°F (2024) | 61.0°F (1979) | 1.93 in (1974) |
| August 24 | 107.1°F (2024) | 54.0°F (2015) | 3.04 in (1966) |
| August 25 | 102.9°F (2024) | 55.0°F (2010) | 1.13 in (1974) |
| August 26 | 100.9°F (2019) | 54.0°F (2010) | 0.42 in (1972) |
| August 27 | 106.0°F (2019) | 54.0°F (2010) | 1.34 in (1972) |
| August 28 | 100.9°F (2011) | 57.0°F (2010) | 1.43 in (1998) |
| August 29 | 102.9°F (2011) | 55.9°F (2017) | 1.42 in (1996) |
| August 30 | 97.0°F (2011) | 55.0°F (2017) | 1.10 in (2025) |
| August 31 | 102.9°F (2011) | 53.1°F (2017) | 1.22 in (1986) |