August weather in Richardson, TX
The average temperature in Richardson in August is 84.7°F (74.5°F–94.8°F). Average precipitation: 2.48 inches.
August is a summer month in Richardson, and is warmer than the annual average of 65.8°F. Daily temperatures swing about 20.3°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 13h 13m. For travel, August is hot.
Avg High
94.8°F
Avg Low
74.5°F
Precipitation
2.48 in
Daylight
13h 13m
August records in Richardson
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 106.0°F (2011) | 66.9°F (2018) | 1.20 in (2021) |
| August 2 | 108.0°F (2011) | 66.0°F (2014) | 1.00 in (2021) |
| August 3 | 108.0°F (2011) | 69.1°F (2018) | 1.85 in (1990) |
| August 4 | 106.0°F (2011) | 66.9°F (2025) | 1.93 in (1990) |
| August 5 | 105.1°F (2011) | 66.9°F (2025) | 0.95 in (1971) |
| August 6 | 104.0°F (2011) | 72.0°F (2021) | 3.00 in (1997) |
| August 7 | 104.0°F (2024) | 71.1°F (2017) | 2.49 in (1994) |
| August 8 | 102.9°F (2011) | 71.1°F (2017) | 0.45 in (1983) |
| August 9 | 106.0°F (2012) | 71.1°F (2018) | 1.60 in (2018) |
| August 10 | 106.0°F (2023) | 71.1°F (2018) | 1.80 in (1960) |
| August 11 | 104.0°F (2006) | 69.1°F (2018) | 2.40 in (2018) |
| August 12 | 105.1°F (2023) | 70.0°F (2009) | 1.15 in (2017) |
| August 13 | 104.0°F (2023) | 66.9°F (2014) | 2.70 in (1966) |
| August 14 | 102.0°F (2006) | 69.1°F (2014) | 4.05 in (1968) |
| August 15 | 102.9°F (2006) | 66.0°F (2008) | 2.84 in (1964) |
| August 16 | 102.9°F (2006) | 66.0°F (2013) | 1.40 in (2020) |
| August 17 | 108.0°F (2023) | 64.0°F (2013) | 2.12 in (1953) |
| August 18 | 108.0°F (2023) | 64.0°F (2013) | 1.70 in (1983) |
| August 19 | 109.0°F (2024) | 64.9°F (2015) | 1.70 in (2004) |
| August 20 | 106.0°F (2011) | 63.0°F (2015) | 0.95 in (2016) |
| August 21 | 107.1°F (2023) | 59.0°F (2015) | 2.45 in (2009) |
| August 22 | 104.0°F (2010) | 63.0°F (2012) | 3.20 in (2022) |
| August 23 | 106.0°F (2010) | 71.1°F (2012) | 1.12 in (1977) |
| August 24 | 106.0°F (2011) | 70.0°F (2008) | 1.50 in (1966) |
| August 25 | 106.0°F (2023) | 70.0°F (2010) | 2.50 in (1962) |
| August 26 | 107.1°F (2023) | 69.1°F (2016) | 1.52 in (1971) |
| August 27 | 107.1°F (2011) | 68.0°F (2010) | 1.86 in (1975) |
| August 28 | 106.0°F (2011) | 64.9°F (2010) | 1.36 in (1950) |
| August 29 | 104.0°F (2020) | 66.9°F (2009) | 1.24 in (1991) |
| August 30 | 102.0°F (2011) | 66.0°F (2006) | 2.63 in (2020) |
| August 31 | 102.9°F (2013) | 66.0°F (2009) | 4.00 in (1994) |