August weather in Rathbun, IA
The average temperature in Rathbun in August is 73.5°F (63.5°F–83.5°F). Average precipitation: 4.62 inches.
August is a summer month in Rathbun, and is warmer than the annual average of 50.4°F. Daily temperatures swing about 20°F between overnight low and afternoon high. Daylight averages about 13h 38m. For travel, August is a comfortable month to visit.
Avg High
83.5°F
Avg Low
63.5°F
Precipitation
4.62 in
Daylight
13h 38m
August records in Rathbun
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.9°F (1970) | 43.0°F (1971) | 1.24 in (1993) |
| August 2 | 100.0°F (1988) | 52.0°F (1996) | 0.53 in (2023) |
| August 3 | 102.9°F (2011) | 51.1°F (1974) | 1.85 in (2016) |
| August 4 | 99.0°F (1988) | 50.0°F (1978) | 1.97 in (2004) |
| August 5 | 97.0°F (1988) | 48.0°F (1974) | 2.36 in (1970) |
| August 6 | 97.0°F (2018) | 52.0°F (1978) | 2.44 in (1972) |
| August 7 | 98.1°F (1984) | 48.0°F (1989) | 3.80 in (2025) |
| August 8 | 100.9°F (2012) | 48.9°F (1976) | 4.48 in (1970) |
| August 9 | 100.9°F (1980) | 51.1°F (1972) | 0.97 in (1977) |
| August 10 | 96.1°F (1971) | 51.1°F (2024) | 2.00 in (2009) |
| August 11 | 95.0°F (1971) | 51.1°F (1982) | 1.18 in (2010) |
| August 12 | 95.0°F (1988) | 48.0°F (1979) | 2.25 in (2025) |
| August 13 | 98.1°F (1975) | 48.9°F (2004) | 1.18 in (1987) |
| August 14 | 98.1°F (1980) | 50.0°F (2004) | 3.18 in (2010) |
| August 15 | 98.1°F (1988) | 48.0°F (1992) | 1.10 in (2024) |
| August 16 | 102.9°F (1988) | 48.0°F (1992) | 2.12 in (1980) |
| August 17 | 100.0°F (1988) | 48.0°F (1992) | 2.75 in (2009) |
| August 18 | 100.0°F (1988) | 46.9°F (2012) | 1.77 in (1970) |
| August 19 | 99.0°F (1988) | 48.9°F (2012) | 1.39 in (2006) |
| August 20 | 95.0°F (1972) | 46.9°F (1978) | 0.88 in (1996) |
| August 21 | 95.0°F (1972) | 52.0°F (2012) | 1.16 in (2007) |
| August 22 | 95.0°F (1975) | 53.1°F (1970) | 2.15 in (2017) |
| August 23 | 96.1°F (1975) | 51.1°F (1984) | 1.62 in (2007) |
| August 24 | 97.0°F (1975) | 50.0°F (1974) | 12.34 in (2007) |
| August 25 | 98.1°F (2003) | 52.0°F (2015) | 1.48 in (1975) |
| August 26 | 102.0°F (2003) | 48.0°F (2025) | 2.90 in (1977) |
| August 27 | 100.9°F (2003) | 46.9°F (2025) | 2.42 in (2004) |
| August 28 | 98.1°F (1984) | 45.0°F (1986) | 3.05 in (1998) |
| August 29 | 100.0°F (1984) | 45.0°F (1986) | 2.75 in (1989) |
| August 30 | 104.0°F (1984) | 48.0°F (1971) | 2.00 in (2014) |
| August 31 | 100.9°F (2013) | 48.0°F (2009) | 5.03 in (1980) |