August weather in Chain of Rocks, MO
The average temperature in Chain of Rocks in August is 76.3°F (65.4°F–87.2°F). Average precipitation: 3.76 inches.
August is a summer month in Chain of Rocks, and is warmer than the annual average of 55.3°F. Daily temperatures swing about 21.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 31m. For travel, August is a comfortable month to visit.
Avg High
87.2°F
Avg Low
65.4°F
Precipitation
3.76 in
Daylight
13h 31m
August records in Chain of Rocks
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (2006) | 55.0°F (1992) | 0.75 in (2020) |
| August 2 | 104.0°F (1980) | 57.9°F (1985) | 0.42 in (2023) |
| August 3 | 105.1°F (1987) | 57.9°F (1986) | 1.20 in (2020) |
| August 4 | 102.9°F (1987) | 57.9°F (1986) | 1.18 in (1990) |
| August 5 | 100.9°F (1980) | 60.1°F (1986) | 1.43 in (2023) |
| August 6 | 102.0°F (1983) | 53.1°F (2004) | 1.51 in (2015) |
| August 7 | 98.1°F (1984) | 52.0°F (2004) | 1.10 in (1982) |
| August 8 | 102.9°F (1980) | 54.0°F (2004) | 2.37 in (2014) |
| August 9 | 105.1°F (1980) | 55.0°F (1989) | 3.97 in (2020) |
| August 10 | 105.1°F (1980) | 59.0°F (1990) | 0.95 in (2015) |
| August 11 | 100.0°F (1980) | 57.0°F (1982) | 0.88 in (2025) |
| August 12 | 100.0°F (1988) | 50.0°F (2004) | 2.22 in (1993) |
| August 13 | 98.1°F (2005) | 46.9°F (2004) | 1.07 in (2025) |
| August 14 | 99.0°F (2010) | 46.9°F (2004) | 1.57 in (2010) |
| August 15 | 96.1°F (1994) | 46.9°F (2004) | 0.68 in (1985) |
| August 16 | 100.0°F (1988) | 51.1°F (2004) | 1.08 in (2005) |
| August 17 | 102.0°F (1988) | 48.9°F (1994) | 1.15 in (2014) |
| August 18 | 102.0°F (1988) | 53.1°F (2012) | 0.87 in (2009) |
| August 19 | 100.0°F (1988) | 52.0°F (2012) | 1.37 in (2007) |
| August 20 | 98.1°F (1983) | 53.1°F (2012) | 0.96 in (2009) |
| August 21 | 98.1°F (1983) | 53.1°F (2012) | 1.48 in (2010) |
| August 22 | 100.9°F (1987) | 55.9°F (1992) | 1.79 in (2008) |
| August 23 | 97.0°F (1983) | 55.0°F (2009) | 1.45 in (1988) |
| August 24 | 97.0°F (1983) | 53.1°F (2015) | 2.08 in (1989) |
| August 25 | 98.1°F (2011) | 52.0°F (2015) | 0.72 in (2007) |
| August 26 | 98.1°F (1991) | 51.1°F (2015) | 1.41 in (2004) |
| August 27 | 99.0°F (1983) | 51.1°F (2015) | 1.91 in (1992) |
| August 28 | 100.0°F (1980) | 48.0°F (1986) | 1.39 in (2009) |
| August 29 | 100.9°F (1984) | 45.0°F (1986) | 0.73 in (1991) |
| August 30 | 107.1°F (1984) | 46.9°F (1986) | 0.65 in (1994) |
| August 31 | 100.0°F (2013) | 48.9°F (1986) | 1.61 in (1994) |