August weather in Mount Vernon, IN
The average temperature in Mount Vernon in August is 76.0°F (64.7°F–87.3°F). Average precipitation: 2.95 inches.
August is a summer month in Mount Vernon, and is warmer than the annual average of 56°F. Daily temperatures swing about 22.6°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 13h 28m. For travel, August is a comfortable month to visit.
Avg High
87.3°F
Avg Low
64.7°F
Precipitation
2.95 in
Daylight
13h 28m
August records in Mount Vernon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.9°F (1980) | 52.0°F (1971) | 3.60 in (1950) |
| August 2 | 100.0°F (1902) | 52.0°F (1920) | 2.15 in (2024) |
| August 3 | 100.0°F (1897) | 51.1°F (1920) | 2.46 in (1974) |
| August 4 | 102.9°F (1964) | 50.0°F (1912) | 1.23 in (1975) |
| August 5 | 102.0°F (2010) | 51.1°F (1912) | 3.55 in (1938) |
| August 6 | 102.0°F (1913) | 53.1°F (1994) | 2.43 in (1959) |
| August 7 | 102.0°F (1896) | 52.0°F (1957) | 1.88 in (1939) |
| August 8 | 104.0°F (1930) | 53.1°F (1989) | 2.26 in (1985) |
| August 9 | 102.9°F (1930) | 53.1°F (1964) | 2.21 in (1970) |
| August 10 | 102.0°F (1980) | 52.0°F (1972) | 1.23 in (1995) |
| August 11 | 99.0°F (1941) | 53.1°F (1967) | 3.95 in (1948) |
| August 12 | 98.1°F (1896) | 48.9°F (1967) | 2.56 in (1952) |
| August 13 | 97.0°F (1909) | 46.9°F (1964) | 2.19 in (1957) |
| August 14 | 99.0°F (1913) | 52.0°F (1963) | 1.90 in (1926) |
| August 15 | 98.1°F (1896) | 50.0°F (1963) | 2.20 in (1918) |
| August 16 | 100.9°F (1896) | 50.0°F (1963) | 2.47 in (1946) |
| August 17 | 100.9°F (1908) | 53.1°F (1979) | 2.38 in (1891) |
| August 18 | 100.0°F (1922) | 52.0°F (1963) | 2.64 in (1907) |
| August 19 | 102.0°F (1925) | 53.1°F (1943) | 1.40 in (1891) |
| August 20 | 99.0°F (1983) | 45.0°F (1950) | 3.28 in (1997) |
| August 21 | 100.9°F (1962) | 48.9°F (1950) | 1.31 in (1915) |
| August 22 | 100.9°F (1983) | 48.0°F (1956) | 2.70 in (1913) |
| August 23 | 100.0°F (1983) | 48.0°F (1923) | 1.94 in (1942) |
| August 24 | 100.0°F (1903) | 48.0°F (1923) | 1.94 in (1907) |
| August 25 | 99.0°F (1903) | 51.1°F (1917) | 2.15 in (1911) |
| August 26 | 100.9°F (1978) | 48.9°F (1958) | 3.65 in (2005) |
| August 27 | 102.9°F (1936) | 51.1°F (1968) | 1.97 in (1916) |
| August 28 | 102.9°F (1909) | 48.9°F (1968) | 2.04 in (1959) |
| August 29 | 102.0°F (1953) | 44.1°F (1965) | 2.28 in (1978) |
| August 30 | 102.0°F (1953) | 45.0°F (1986) | 1.85 in (1978) |
| August 31 | 102.0°F (1953) | 46.0°F (1915) | 3.32 in (2005) |