August weather in Vandalia, OH
The average temperature in Vandalia in August is 74.5°F (64.3°F–84.6°F). Average precipitation: 2.96 inches.
August is a summer month in Vandalia, and is warmer than the annual average of 53.9°F. Daily temperatures swing about 20.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 35m. For travel, August is a comfortable month to visit.
Avg High
84.6°F
Avg Low
64.3°F
Precipitation
2.96 in
Daylight
13h 35m
August records in Vandalia
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 95.0°F (1953) | 53.1°F (1962) | 2.19 in (1953) |
| August 2 | 97.0°F (1991) | 48.9°F (1965) | 1.27 in (2003) |
| August 3 | 100.0°F (1964) | 39.9°F (1965) | 2.13 in (1978) |
| August 4 | 95.0°F (1955) | 51.1°F (1976) | 2.86 in (1959) |
| August 5 | 93.9°F (1955) | 45.0°F (1972) | 3.38 in (1995) |
| August 6 | 95.0°F (1965) | 48.9°F (1994) | 1.27 in (2024) |
| August 7 | 93.9°F (2007) | 52.0°F (1976) | 2.25 in (1982) |
| August 8 | 96.1°F (2007) | 48.9°F (1989) | 2.23 in (1995) |
| August 9 | 95.0°F (2007) | 50.0°F (1964) | 2.98 in (1969) |
| August 10 | 95.0°F (1980) | 48.9°F (1962) | 1.88 in (1961) |
| August 11 | 95.0°F (1988) | 50.0°F (1962) | 1.45 in (1979) |
| August 12 | 93.9°F (1988) | 48.0°F (1967) | 1.21 in (2025) |
| August 13 | 93.0°F (1988) | 44.1°F (1964) | 0.93 in (1956) |
| August 14 | 95.0°F (1965) | 44.1°F (1964) | 1.12 in (2016) |
| August 15 | 98.1°F (1965) | 45.0°F (1964) | 1.29 in (1980) |
| August 16 | 98.1°F (1965) | 46.9°F (1963) | 1.11 in (1952) |
| August 17 | 102.0°F (1988) | 48.9°F (1981) | 1.28 in (2018) |
| August 18 | 99.0°F (1988) | 50.0°F (1963) | 1.18 in (2001) |
| August 19 | 95.0°F (1955) | 51.1°F (1964) | 0.64 in (2009) |
| August 20 | 98.1°F (1962) | 51.1°F (1978) | 2.69 in (2004) |
| August 21 | 96.1°F (1955) | 46.0°F (1950) | 1.14 in (2014) |
| August 22 | 93.0°F (1959) | 50.0°F (2024) | 1.25 in (1971) |
| August 23 | 93.9°F (1959) | 48.9°F (1952) | 0.66 in (1979) |
| August 24 | 93.9°F (2007) | 46.0°F (1987) | 1.53 in (1982) |
| August 25 | 95.0°F (1948) | 48.9°F (1984) | 1.51 in (1993) |
| August 26 | 96.1°F (1948) | 48.0°F (1963) | 2.16 in (1992) |
| August 27 | 97.0°F (1948) | 46.0°F (1968) | 2.37 in (1974) |
| August 28 | 96.1°F (1953) | 45.0°F (1965) | 1.90 in (1950) |
| August 29 | 96.1°F (1953) | 41.0°F (1986) | 1.32 in (2017) |
| August 30 | 98.1°F (2024) | 43.0°F (1976) | 2.29 in (2005) |
| August 31 | 100.0°F (1951) | 46.0°F (2009) | 1.07 in (1962) |