August weather in Vermilion, IL
The average temperature in Vermilion in August is 72.3°F (61.7°F–83.0°F). Average precipitation: 3.57 inches.
August is a summer month in Vermilion, and is warmer than the annual average of 51.4°F. Daily temperatures swing about 21.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 34m. For travel, August is a comfortable month to visit.
Avg High
83.0°F
Avg Low
61.7°F
Precipitation
3.57 in
Daylight
13h 34m
August records in Vermilion
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 104.0°F (1897) | 51.1°F (1947) | 1.32 in (1979) |
| August 2 | 104.0°F (1897) | 46.9°F (1920) | 3.15 in (1978) |
| August 3 | 107.1°F (1897) | 46.9°F (1920) | 1.67 in (1915) |
| August 4 | 102.9°F (1930) | 43.0°F (1894) | 1.46 in (1985) |
| August 5 | 102.0°F (1918) | 44.1°F (1912) | 2.44 in (1998) |
| August 6 | 107.1°F (1918) | 48.0°F (1948) | 3.44 in (1991) |
| August 7 | 102.9°F (1918) | 48.9°F (1990) | 2.12 in (1963) |
| August 8 | 100.9°F (1930) | 50.0°F (1904) | 2.20 in (1923) |
| August 9 | 102.0°F (1896) | 46.0°F (1922) | 1.70 in (1969) |
| August 10 | 102.0°F (1894) | 48.0°F (1922) | 1.82 in (2023) |
| August 11 | 100.0°F (1911) | 46.9°F (1922) | 1.48 in (1952) |
| August 12 | 100.0°F (1896) | 46.9°F (2004) | 2.10 in (1993) |
| August 13 | 102.9°F (1918) | 48.0°F (1964) | 2.69 in (1990) |
| August 14 | 100.0°F (1940) | 46.9°F (1924) | 2.00 in (1905) |
| August 15 | 100.0°F (1936) | 46.9°F (1992) | 1.87 in (1980) |
| August 16 | 100.0°F (1988) | 46.9°F (1929) | 3.45 in (2016) |
| August 17 | 100.9°F (1988) | 52.0°F (1929) | 3.46 in (1993) |
| August 18 | 106.0°F (1936) | 46.0°F (1963) | 2.84 in (1980) |
| August 19 | 102.0°F (1936) | 46.9°F (1943) | 2.62 in (1979) |
| August 20 | 102.9°F (1936) | 45.0°F (1929) | 2.54 in (1924) |
| August 21 | 105.1°F (1936) | 43.0°F (1950) | 2.40 in (1938) |
| August 22 | 104.0°F (1936) | 46.0°F (1923) | 1.31 in (1989) |
| August 23 | 100.9°F (1936) | 44.1°F (1923) | 2.07 in (1989) |
| August 24 | 102.9°F (1947) | 44.1°F (1951) | 2.34 in (1924) |
| August 25 | 100.9°F (1936) | 45.0°F (1927) | 1.83 in (1962) |
| August 26 | 100.9°F (1936) | 44.1°F (1917) | 1.91 in (2007) |
| August 27 | 100.0°F (1948) | 46.0°F (1910) | 2.12 in (1921) |
| August 28 | 100.9°F (1936) | 43.0°F (1986) | 2.16 in (1974) |
| August 29 | 102.0°F (1913) | 39.9°F (1893) | 2.30 in (1951) |
| August 30 | 97.0°F (1932) | 44.1°F (1934) | 1.55 in (2022) |
| August 31 | 100.0°F (1943) | 39.0°F (1915) | 1.78 in (1918) |