August weather in West Des Moines, IA
The average temperature in West Des Moines in August is 73.9°F (64.2°F–83.6°F). Average precipitation: 4.17 inches.
August is a summer month in West Des Moines, and is warmer than the annual average of 50.9°F. Daily temperatures swing about 19.4°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 40m. For travel, August is a comfortable month to visit.
Avg High
83.6°F
Avg Low
64.2°F
Precipitation
4.17 in
Daylight
13h 40m
August records in West Des Moines
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (1987) | 55.0°F (1968) | 2.61 in (1972) |
| August 2 | 100.0°F (1964) | 53.1°F (1950) | 0.73 in (2016) |
| August 3 | 102.0°F (1947) | 54.0°F (1986) | 2.54 in (2004) |
| August 4 | 102.0°F (1954) | 51.1°F (1978) | 2.30 in (1970) |
| August 5 | 100.0°F (1947) | 51.1°F (1957) | 2.34 in (1972) |
| August 6 | 99.0°F (2022) | 53.1°F (1989) | 1.86 in (2014) |
| August 7 | 100.0°F (1988) | 48.0°F (1989) | 1.38 in (1991) |
| August 8 | 97.0°F (1988) | 53.1°F (1976) | 2.42 in (2010) |
| August 9 | 100.0°F (1947) | 50.0°F (1972) | 1.42 in (2010) |
| August 10 | 100.9°F (1983) | 52.0°F (1967) | 1.90 in (2010) |
| August 11 | 98.1°F (1947) | 50.0°F (1986) | 1.42 in (1976) |
| August 12 | 99.0°F (1975) | 48.0°F (1964) | 2.18 in (1987) |
| August 13 | 99.0°F (1965) | 48.0°F (1964) | 3.23 in (1986) |
| August 14 | 104.0°F (1988) | 51.1°F (1994) | 2.65 in (1981) |
| August 15 | 104.0°F (1988) | 50.0°F (1992) | 0.98 in (2001) |
| August 16 | 108.0°F (1983) | 52.0°F (1992) | 2.04 in (1980) |
| August 17 | 104.0°F (1988) | 52.0°F (2012) | 0.83 in (1966) |
| August 18 | 104.0°F (1983) | 50.0°F (1977) | 2.46 in (2015) |
| August 19 | 100.9°F (1983) | 48.9°F (1950) | 1.03 in (1979) |
| August 20 | 100.0°F (1947) | 39.9°F (1950) | 2.77 in (2019) |
| August 21 | 99.0°F (1947) | 46.9°F (1950) | 2.92 in (1946) |
| August 22 | 98.1°F (1947) | 52.0°F (1951) | 2.17 in (1988) |
| August 23 | 100.0°F (2023) | 48.0°F (1966) | 1.33 in (1989) |
| August 24 | 100.0°F (2003) | 50.0°F (1966) | 1.30 in (1975) |
| August 25 | 100.9°F (1983) | 45.0°F (1958) | 3.45 in (1987) |
| August 26 | 104.0°F (1983) | 46.9°F (2025) | 4.18 in (1977) |
| August 27 | 99.0°F (1955) | 45.0°F (1986) | 6.18 in (1975) |
| August 28 | 100.0°F (1984) | 41.0°F (1986) | 3.38 in (2014) |
| August 29 | 99.0°F (1983) | 43.0°F (1946) | 3.16 in (1993) |
| August 30 | 104.0°F (2013) | 48.9°F (1946) | 1.78 in (1983) |
| August 31 | 97.0°F (2000) | 45.0°F (1967) | 2.80 in (1977) |