August weather in Hiawatha, IA
The average temperature in Hiawatha in August is 72.3°F (61.2°F–83.4°F). Average precipitation: 4.42 inches.
August is a summer month in Hiawatha, and is warmer than the annual average of 49.9°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 42m. For travel, August is a comfortable month to visit.
Avg High
83.4°F
Avg Low
61.2°F
Precipitation
4.42 in
Daylight
13h 42m
August records in Hiawatha
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.0°F (1917) | 48.0°F (1895) | 2.35 in (1972) |
| August 2 | 100.0°F (1988) | 48.9°F (1925) | 3.75 in (1929) |
| August 3 | 108.0°F (1930) | 43.0°F (1927) | 2.08 in (1897) |
| August 4 | 102.9°F (1930) | 46.9°F (1894) | 1.88 in (1988) |
| August 5 | 100.0°F (1947) | 46.9°F (1994) | 4.71 in (1968) |
| August 6 | 107.1°F (1918) | 46.9°F (1948) | 1.51 in (2018) |
| August 7 | 102.0°F (1918) | 46.0°F (1989) | 3.77 in (1991) |
| August 8 | 100.0°F (1918) | 46.9°F (1904) | 2.95 in (1977) |
| August 9 | 100.0°F (1894) | 43.0°F (1927) | 1.70 in (1906) |
| August 10 | 104.0°F (1913) | 46.9°F (1924) | 2.70 in (2025) |
| August 11 | 100.0°F (1941) | 46.9°F (1930) | 1.78 in (1939) |
| August 12 | 99.0°F (1936) | 43.0°F (1931) | 4.21 in (2016) |
| August 13 | 100.0°F (1918) | 42.1°F (1964) | 2.60 in (1943) |
| August 14 | 99.0°F (1936) | 42.1°F (1964) | 1.83 in (1908) |
| August 15 | 102.0°F (1936) | 41.0°F (1929) | 1.09 in (1959) |
| August 16 | 100.9°F (1913) | 46.9°F (1992) | 3.41 in (1977) |
| August 17 | 102.0°F (1988) | 46.0°F (1924) | 2.38 in (1902) |
| August 18 | 108.0°F (1936) | 46.0°F (1977) | 1.82 in (1954) |
| August 19 | 100.0°F (1914) | 46.9°F (2004) | 4.44 in (1924) |
| August 20 | 100.0°F (1916) | 37.9°F (1950) | 1.48 in (1935) |
| August 21 | 100.0°F (1916) | 45.0°F (1950) | 2.36 in (1910) |
| August 22 | 100.0°F (1936) | 48.0°F (1897) | 1.19 in (1982) |
| August 23 | 102.9°F (2023) | 45.0°F (1923) | 2.05 in (2011) |
| August 24 | 100.9°F (2023) | 41.0°F (1934) | 1.37 in (1963) |
| August 25 | 98.1°F (2023) | 39.9°F (1934) | 2.47 in (1990) |
| August 26 | 97.0°F (1912) | 41.0°F (1934) | 4.21 in (1987) |
| August 27 | 98.1°F (2013) | 44.1°F (1916) | 4.48 in (2009) |
| August 28 | 97.0°F (1955) | 39.9°F (1935) | 1.71 in (2006) |
| August 29 | 97.0°F (1925) | 37.9°F (1934) | 2.57 in (1993) |
| August 30 | 99.0°F (2013) | 37.0°F (1915) | 2.73 in (2024) |
| August 31 | 97.0°F (1953) | 37.9°F (1915) | 2.86 in (1956) |