August weather in Castana, IA
The average temperature in Castana in August is 71.3°F (61.1°F–81.6°F). Average precipitation: 4.23 inches.
August is a summer month in Castana, and is warmer than the annual average of 48.2°F. Daily temperatures swing about 20.5°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
81.6°F
Avg Low
61.1°F
Precipitation
4.23 in
Daylight
13h 42m
August records in Castana
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 104.0°F (2006) | 48.0°F (1977) | 2.04 in (1961) |
| August 2 | 99.0°F (1964) | 48.9°F (1950) | 1.10 in (2006) |
| August 3 | 96.1°F (1955) | 48.0°F (1974) | 2.63 in (1994) |
| August 4 | 97.0°F (1989) | 41.0°F (1978) | 1.34 in (2002) |
| August 5 | 96.1°F (1989) | 50.0°F (1948) | 3.85 in (1996) |
| August 6 | 96.1°F (1979) | 51.1°F (1974) | 2.86 in (1963) |
| August 7 | 99.0°F (1988) | 48.0°F (1972) | 1.76 in (1969) |
| August 8 | 96.1°F (1979) | 48.9°F (2009) | 1.76 in (1968) |
| August 9 | 93.9°F (2005) | 46.9°F (1972) | 2.77 in (1974) |
| August 10 | 99.0°F (1976) | 48.0°F (1967) | 1.31 in (1955) |
| August 11 | 95.0°F (1988) | 45.0°F (1977) | 1.85 in (2005) |
| August 12 | 95.0°F (1975) | 42.1°F (1964) | 1.73 in (2016) |
| August 13 | 93.9°F (1965) | 43.0°F (1964) | 2.14 in (1974) |
| August 14 | 100.0°F (1988) | 48.0°F (1992) | 2.58 in (1951) |
| August 15 | 100.0°F (1988) | 48.9°F (1992) | 2.04 in (1998) |
| August 16 | 100.9°F (1983) | 51.1°F (1992) | 2.06 in (2017) |
| August 17 | 102.0°F (1988) | 48.0°F (1981) | 1.13 in (1950) |
| August 18 | 99.0°F (1988) | 46.9°F (1977) | 2.03 in (1993) |
| August 19 | 96.1°F (1983) | 41.0°F (1967) | 1.50 in (2011) |
| August 20 | 96.1°F (1955) | 39.9°F (1950) | 1.40 in (1951) |
| August 21 | 98.1°F (1955) | 46.9°F (2004) | 1.38 in (1955) |
| August 22 | 95.0°F (1976) | 48.9°F (1950) | 2.49 in (1988) |
| August 23 | 98.1°F (1948) | 43.0°F (1966) | 2.14 in (2007) |
| August 24 | 95.0°F (1948) | 46.0°F (1977) | 2.83 in (2010) |
| August 25 | 96.1°F (1955) | 46.0°F (1964) | 1.86 in (1992) |
| August 26 | 100.0°F (1955) | 48.0°F (1964) | 1.45 in (1979) |
| August 27 | 100.9°F (1955) | 42.1°F (1967) | 1.60 in (2008) |
| August 28 | 97.0°F (1984) | 37.9°F (1986) | 2.37 in (2015) |
| August 29 | 96.1°F (1970) | 46.9°F (1977) | 2.14 in (1982) |
| August 30 | 97.0°F (2000) | 46.0°F (2009) | 3.79 in (1962) |
| August 31 | 97.0°F (2000) | 41.0°F (1967) | 2.94 in (1977) |