August weather in Preston, IA
The average temperature in Preston in August is 70.6°F (60.6°F–80.6°F). Average precipitation: 4.18 inches.
August is a summer month in Preston, and is warmer than the annual average of 47.9°F. Daily temperatures swing about 20°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 42m. For travel, August is a comfortable month to visit.
Avg High
80.6°F
Avg Low
60.6°F
Precipitation
4.18 in
Daylight
13h 42m
August records in Preston
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.9°F (1987) | 48.0°F (1936) | 1.20 in (1972) |
| August 2 | 100.0°F (1988) | 43.0°F (1927) | 2.20 in (1972) |
| August 3 | 102.9°F (1930) | 39.9°F (1927) | 1.82 in (1959) |
| August 4 | 100.0°F (1930) | 42.1°F (1978) | 1.20 in (1944) |
| August 5 | 98.1°F (1947) | 46.9°F (1994) | 3.85 in (1968) |
| August 6 | 98.1°F (1947) | 48.0°F (1901) | 2.00 in (1903) |
| August 7 | 97.0°F (1984) | 46.9°F (1903) | 2.83 in (1967) |
| August 8 | 99.0°F (1930) | 37.9°F (1904) | 2.07 in (1991) |
| August 9 | 99.0°F (1936) | 41.0°F (1927) | 2.05 in (2011) |
| August 10 | 98.1°F (2005) | 46.9°F (1982) | 2.26 in (1961) |
| August 11 | 99.0°F (1941) | 43.0°F (1982) | 1.66 in (1949) |
| August 12 | 98.1°F (1936) | 41.0°F (1931) | 2.55 in (1972) |
| August 13 | 95.0°F (1918) | 43.0°F (1931) | 2.12 in (2002) |
| August 14 | 102.0°F (1936) | 41.0°F (1964) | 1.66 in (1905) |
| August 15 | 100.9°F (1936) | 39.9°F (1929) | 2.51 in (1981) |
| August 16 | 102.0°F (1988) | 44.1°F (1976) | 2.16 in (1898) |
| August 17 | 102.9°F (1988) | 45.0°F (1992) | 2.30 in (1944) |
| August 18 | 108.0°F (1936) | 41.0°F (1963) | 1.96 in (1954) |
| August 19 | 98.1°F (1983) | 45.0°F (1933) | 2.25 in (1914) |
| August 20 | 100.0°F (1947) | 37.9°F (1950) | 3.15 in (1937) |
| August 21 | 99.0°F (1936) | 42.1°F (1940) | 2.30 in (1980) |
| August 22 | 100.9°F (1936) | 43.0°F (1930) | 1.42 in (1959) |
| August 23 | 99.0°F (1947) | 43.0°F (1930) | 2.05 in (2020) |
| August 24 | 100.9°F (2023) | 39.9°F (1927) | 1.93 in (2014) |
| August 25 | 100.0°F (2023) | 37.0°F (1934) | 1.44 in (1990) |
| August 26 | 97.0°F (2023) | 37.9°F (1934) | 3.78 in (1987) |
| August 27 | 95.0°F (1973) | 41.0°F (1934) | 1.89 in (1936) |
| August 28 | 96.1°F (1955) | 37.0°F (1986) | 2.53 in (1998) |
| August 29 | 100.0°F (1984) | 34.0°F (1934) | 1.92 in (2015) |
| August 30 | 98.1°F (1958) | 44.1°F (1917) | 6.93 in (1981) |
| August 31 | 98.1°F (2013) | 41.0°F (2009) | 4.31 in (1956) |