August weather in Blue Grass, IA
The average temperature in Blue Grass in August is 72.7°F (63.1°F–82.4°F). Average precipitation: 4.03 inches.
August is a summer month in Blue Grass, and is warmer than the annual average of 50.3°F. Daily temperatures swing about 19.3°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 40m. For travel, August is a comfortable month to visit.
Avg High
82.4°F
Avg Low
63.1°F
Precipitation
4.03 in
Daylight
13h 40m
August records in Blue Grass
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.0°F (1988) | 52.0°F (1891) | 0.75 in (2024) |
| August 2 | 101.5°F (1890) | 50.0°F (1875) | 0.30 in (2022) |
| August 3 | 98.1°F (1890) | 51.1°F (1891) | 1.45 in (2006) |
| August 4 | 98.1°F (1988) | 52.0°F (1873) | 1.00 in (1994) |
| August 5 | 93.9°F (1989) | 48.9°F (2017) | 1.04 in (2002) |
| August 6 | 95.0°F (1873) | 54.0°F (1875) | 2.00 in (1876) |
| August 7 | 95.0°F (1988) | 53.1°F (1875) | 0.72 in (1870) |
| August 8 | 100.0°F (1988) | 57.0°F (1989) | 1.98 in (2009) |
| August 9 | 98.1°F (1873) | 54.0°F (2017) | 1.66 in (2015) |
| August 10 | 100.0°F (1874) | 48.9°F (1890) | 1.33 in (1993) |
| August 11 | 102.9°F (1874) | 53.1°F (2004) | 2.30 in (2016) |
| August 12 | 100.0°F (1874) | 53.1°F (2004) | 2.55 in (2016) |
| August 13 | 93.9°F (1995) | 52.0°F (2004) | 0.83 in (2010) |
| August 14 | 97.0°F (1988) | 52.0°F (2004) | 1.25 in (2010) |
| August 15 | 99.0°F (1988) | 44.1°F (1992) | 2.63 in (2024) |
| August 16 | 100.0°F (1988) | 52.0°F (1873) | 1.66 in (1869) |
| August 17 | 100.0°F (1988) | 51.1°F (1890) | 1.95 in (2009) |
| August 18 | 99.0°F (1988) | 51.1°F (1873) | 2.20 in (1872) |
| August 19 | 99.5°F (1874) | 53.1°F (1875) | 1.35 in (1867) |
| August 20 | 102.0°F (1874) | 53.1°F (1985) | 2.12 in (1990) |
| August 21 | 102.0°F (1874) | 55.0°F (2004) | 1.15 in (1869) |
| August 22 | 99.0°F (1873) | 45.0°F (1875) | 0.51 in (2014) |
| August 23 | 98.1°F (1873) | 44.1°F (1875) | 4.00 in (1996) |
| August 24 | 100.6°F (1873) | 46.0°F (1891) | 2.75 in (2016) |
| August 25 | 99.5°F (1873) | 46.9°F (1891) | 1.29 in (2004) |
| August 26 | 96.1°F (2003) | 52.0°F (1876) | 3.05 in (2012) |
| August 27 | 96.1°F (2003) | 48.9°F (2025) | 1.57 in (1867) |
| August 28 | 95.0°F (2013) | 43.0°F (1891) | 2.80 in (2018) |
| August 29 | 91.9°F (1889) | 48.9°F (1986) | 1.30 in (1874) |
| August 30 | 98.1°F (1873) | 48.0°F (2009) | 1.35 in (2016) |
| August 31 | 102.0°F (1873) | 48.9°F (1891) | 1.47 in (2021) |