August weather in Hannibal, MO
The average temperature in Hannibal in August is 74.8°F (65.2°F–84.4°F). Average precipitation: 3.92 inches.
August is a summer month in Hannibal, and is warmer than the annual average of 53°F. Daily temperatures swing about 19.2°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
84.4°F
Avg Low
65.2°F
Precipitation
3.92 in
Daylight
13h 34m
August records in Hannibal
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (1988) | 54.0°F (1968) | 1.74 in (2021) |
| August 2 | 104.0°F (1934) | 55.9°F (1973) | 2.60 in (1995) |
| August 3 | 102.0°F (1964) | 53.1°F (1950) | 2.53 in (1957) |
| August 4 | 102.0°F (1934) | 53.1°F (1978) | 1.31 in (1995) |
| August 5 | 100.0°F (1934) | 53.1°F (1948) | 2.99 in (1940) |
| August 6 | 107.1°F (1934) | 51.1°F (1994) | 1.46 in (2008) |
| August 7 | 104.0°F (1934) | 48.9°F (2004) | 3.45 in (2014) |
| August 8 | 109.0°F (1934) | 54.0°F (1975) | 3.57 in (1943) |
| August 9 | 109.9°F (1934) | 50.0°F (2004) | 1.32 in (1991) |
| August 10 | 106.0°F (1934) | 52.0°F (2004) | 3.14 in (1992) |
| August 11 | 102.9°F (1941) | 43.0°F (2004) | 1.36 in (1939) |
| August 12 | 102.9°F (1936) | 42.1°F (2004) | 1.22 in (1939) |
| August 13 | 106.0°F (1936) | 46.0°F (1964) | 2.66 in (1987) |
| August 14 | 108.0°F (1936) | 51.1°F (2004) | 2.06 in (1971) |
| August 15 | 102.0°F (1936) | 51.1°F (1992) | 1.96 in (1977) |
| August 16 | 105.1°F (1936) | 52.0°F (1992) | 1.71 in (1946) |
| August 17 | 102.9°F (1936) | 52.0°F (1943) | 2.34 in (2019) |
| August 18 | 107.1°F (1936) | 52.0°F (1943) | 1.40 in (1939) |
| August 19 | 107.1°F (1936) | 51.1°F (1950) | 0.94 in (1963) |
| August 20 | 100.9°F (1936) | 44.1°F (1950) | 2.78 in (1958) |
| August 21 | 104.0°F (1936) | 46.9°F (1950) | 2.75 in (1971) |
| August 22 | 105.1°F (1936) | 53.1°F (1950) | 1.87 in (2017) |
| August 23 | 102.0°F (1936) | 48.9°F (1966) | 1.63 in (1988) |
| August 24 | 106.0°F (1936) | 46.0°F (2004) | 2.00 in (1999) |
| August 25 | 104.0°F (1936) | 48.9°F (1958) | 3.25 in (1941) |
| August 26 | 106.0°F (1936) | 48.9°F (1967) | 3.63 in (2004) |
| August 27 | 100.9°F (2003) | 50.0°F (1971) | 2.79 in (2023) |
| August 28 | 100.0°F (1983) | 43.0°F (1986) | 3.78 in (2004) |
| August 29 | 102.0°F (1984) | 46.0°F (1986) | 4.09 in (1955) |
| August 30 | 105.1°F (1984) | 50.0°F (1946) | 1.90 in (1965) |
| August 31 | 100.0°F (1953) | 39.9°F (1999) | 4.79 in (1981) |