August weather in Greenfield, IA
The average temperature in Greenfield in August is 72.3°F (62.0°F–82.5°F). Average precipitation: 4.36 inches.
August is a summer month in Greenfield, and is warmer than the annual average of 49.1°F. Daily temperatures swing about 20.5°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
82.5°F
Avg Low
62.0°F
Precipitation
4.36 in
Daylight
13h 40m
August records in Greenfield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (1916) | 46.9°F (1920) | 3.74 in (2016) |
| August 2 | 100.9°F (1947) | 48.9°F (1907) | 2.60 in (1981) |
| August 3 | 100.9°F (1913) | 50.0°F (1894) | 1.14 in (2023) |
| August 4 | 100.9°F (1916) | 46.0°F (1978) | 2.60 in (2004) |
| August 5 | 104.0°F (1938) | 48.9°F (1915) | 4.11 in (1982) |
| August 6 | 98.1°F (1916) | 51.1°F (2004) | 1.50 in (1960) |
| August 7 | 104.0°F (1913) | 48.0°F (1989) | 2.25 in (1911) |
| August 8 | 105.1°F (1913) | 46.9°F (1904) | 2.55 in (1987) |
| August 9 | 104.0°F (1913) | 48.9°F (1917) | 4.10 in (1933) |
| August 10 | 100.9°F (1894) | 45.0°F (1914) | 1.04 in (1893) |
| August 11 | 100.0°F (1894) | 43.0°F (1902) | 2.20 in (1980) |
| August 12 | 99.0°F (1947) | 46.9°F (1893) | 3.15 in (1993) |
| August 13 | 100.9°F (1938) | 45.0°F (1964) | 2.38 in (1986) |
| August 14 | 100.0°F (1988) | 48.0°F (1994) | 2.31 in (1896) |
| August 15 | 102.0°F (1988) | 46.9°F (1992) | 3.30 in (1908) |
| August 16 | 100.9°F (1988) | 50.0°F (1992) | 3.10 in (1980) |
| August 17 | 100.9°F (1988) | 46.9°F (1981) | 1.42 in (1960) |
| August 18 | 100.0°F (1914) | 43.0°F (1981) | 2.43 in (2015) |
| August 19 | 99.0°F (1921) | 44.1°F (1981) | 1.23 in (1993) |
| August 20 | 100.9°F (1947) | 39.0°F (1950) | 2.81 in (2018) |
| August 21 | 100.0°F (1947) | 45.0°F (1950) | 4.93 in (1933) |
| August 22 | 100.0°F (1914) | 44.1°F (1920) | 3.24 in (1943) |
| August 23 | 99.0°F (1894) | 45.0°F (1966) | 3.25 in (1895) |
| August 24 | 100.0°F (1947) | 45.0°F (1942) | 6.60 in (1946) |
| August 25 | 100.9°F (2003) | 44.1°F (1958) | 1.57 in (1947) |
| August 26 | 100.0°F (2003) | 44.1°F (1910) | 4.49 in (1987) |
| August 27 | 99.0°F (1913) | 43.0°F (1971) | 2.53 in (1903) |
| August 28 | 100.9°F (1984) | 39.9°F (1986) | 5.30 in (1977) |
| August 29 | 100.0°F (1984) | 39.9°F (1893) | 3.60 in (2014) |
| August 30 | 98.1°F (1947) | 37.0°F (1915) | 2.25 in (1922) |
| August 31 | 104.0°F (1913) | 43.0°F (1915) | 3.00 in (1977) |