August weather in Mandan, ND
The average temperature in Mandan in August is 68.7°F (55.5°F–81.8°F). Average precipitation: 2.19 inches.
August is a summer month in Mandan, and is warmer than the annual average of 42.4°F. Daily temperatures swing about 26.3°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 14h 1m. For travel, August is a comfortable month to visit.
Avg High
81.8°F
Avg Low
55.5°F
Precipitation
2.19 in
Daylight
14h 1m
August records in Mandan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (1926) | 41.0°F (1935) | 2.90 in (1915) |
| August 2 | 102.0°F (1957) | 42.1°F (1971) | 1.62 in (1987) |
| August 3 | 100.9°F (1947) | 39.0°F (1972) | 1.14 in (1996) |
| August 4 | 102.0°F (1947) | 43.0°F (1974) | 1.01 in (1944) |
| August 5 | 109.0°F (1941) | 44.1°F (1992) | 0.72 in (1981) |
| August 6 | 104.0°F (1937) | 43.0°F (1993) | 0.95 in (1965) |
| August 7 | 104.0°F (1961) | 43.0°F (1989) | 1.51 in (1950) |
| August 8 | 104.0°F (1949) | 43.0°F (2024) | 1.95 in (2007) |
| August 9 | 102.9°F (1958) | 37.9°F (1917) | 0.90 in (1941) |
| August 10 | 104.0°F (1958) | 37.0°F (1985) | 1.32 in (1980) |
| August 11 | 100.0°F (1928) | 37.9°F (1977) | 1.41 in (2005) |
| August 12 | 102.0°F (2000) | 34.0°F (1964) | 2.60 in (1999) |
| August 13 | 100.9°F (1922) | 37.9°F (1964) | 1.78 in (1945) |
| August 14 | 104.0°F (1935) | 36.0°F (1929) | 1.13 in (2023) |
| August 15 | 100.9°F (2003) | 39.9°F (1989) | 2.83 in (2024) |
| August 16 | 100.9°F (2015) | 39.9°F (1968) | 1.38 in (2017) |
| August 17 | 102.9°F (1934) | 39.0°F (1977) | 1.42 in (1951) |
| August 18 | 104.0°F (2003) | 37.0°F (2002) | 1.01 in (1953) |
| August 19 | 102.0°F (1973) | 37.9°F (1950) | 2.00 in (2018) |
| August 20 | 100.0°F (1942) | 37.0°F (1950) | 0.90 in (1980) |
| August 21 | 104.0°F (1947) | 39.0°F (1920) | 0.95 in (1924) |
| August 22 | 102.9°F (2010) | 37.9°F (1974) | 1.74 in (1998) |
| August 23 | 104.0°F (1960) | 37.0°F (1928) | 1.45 in (1968) |
| August 24 | 100.0°F (1976) | 33.1°F (1934) | 1.95 in (2022) |
| August 25 | 98.1°F (1926) | 36.0°F (1934) | 1.55 in (1990) |
| August 26 | 102.0°F (1991) | 32.0°F (1914) | 0.63 in (1943) |
| August 27 | 104.0°F (1970) | 35.1°F (1982) | 0.66 in (1927) |
| August 28 | 104.0°F (1973) | 32.0°F (1935) | 0.67 in (1955) |
| August 29 | 100.9°F (1959) | 35.1°F (1982) | 1.06 in (1920) |
| August 30 | 102.9°F (1961) | 37.0°F (1965) | 2.10 in (1951) |
| August 31 | 102.0°F (1921) | 36.0°F (1992) | 1.27 in (1956) |