August weather in Ballwin, MO
The average temperature in Ballwin in August is °F (°F–°F). Average precipitation: 3.25 inches.
August is a summer month in Ballwin, and is cooler than the annual average of 0°F. Expect about 7 days with precipitation. Daylight averages about 13h 30m.
Avg High
°F
Avg Low
°F
Precipitation
3.25 in
Daylight
13h 30m
August records in Ballwin
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | — | — | 1.78 in (1934) |
| August 2 | — | — | 1.70 in (1966) |
| August 3 | — | — | 2.38 in (1995) |
| August 4 | — | — | 2.56 in (1990) |
| August 5 | — | — | 2.15 in (1980) |
| August 6 | — | — | 4.88 in (1946) |
| August 7 | — | — | 3.94 in (1995) |
| August 8 | — | — | 1.80 in (1999) |
| August 9 | — | — | 2.41 in (1970) |
| August 10 | — | — | 2.87 in (1961) |
| August 11 | — | — | 1.28 in (1961) |
| August 12 | — | — | 3.36 in (1993) |
| August 13 | — | — | 2.28 in (1932) |
| August 14 | — | — | 2.08 in (2005) |
| August 15 | — | — | 4.00 in (1946) |
| August 16 | — | — | 2.82 in (1944) |
| August 17 | — | — | 2.64 in (1923) |
| August 18 | — | — | 3.05 in (1939) |
| August 19 | — | — | 1.70 in (2015) |
| August 20 | — | — | 1.95 in (1949) |
| August 21 | — | — | 2.30 in (2010) |
| August 22 | — | — | 1.85 in (1922) |
| August 23 | — | — | 1.52 in (1988) |
| August 24 | — | — | 4.00 in (1916) |
| August 25 | — | — | 1.82 in (1962) |
| August 26 | — | — | 1.94 in (1975) |
| August 27 | — | — | 1.78 in (1981) |
| August 28 | — | — | 1.10 in (1992) |
| August 29 | — | — | 1.44 in (1919) |
| August 30 | — | — | 1.78 in (1975) |
| August 31 | — | — | 0.66 in (1965) |