August weather in Reliance, SD
The average temperature in Reliance in August is 73.5°F (59.2°F–87.8°F). Average precipitation: 2.31 inches.
August is a summer month in Reliance, and is warmer than the annual average of 48.1°F. Daily temperatures swing about 28.6°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 13h 49m. For travel, August is a comfortable month to visit.
Avg High
87.8°F
Avg Low
59.2°F
Precipitation
2.31 in
Daylight
13h 49m
August records in Reliance
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 109.9°F (1936) | 42.1°F (1925) | 1.19 in (1970) |
| August 2 | 111.9°F (1938) | 41.0°F (1921) | 2.12 in (1911) |
| August 3 | 111.0°F (1980) | 39.9°F (1978) | 2.25 in (2007) |
| August 4 | 113.0°F (1934) | 37.9°F (1974) | 1.20 in (1984) |
| August 5 | 109.0°F (1941) | 43.0°F (1994) | 1.56 in (2023) |
| August 6 | 111.9°F (1980) | 46.0°F (1993) | 1.73 in (1906) |
| August 7 | 111.0°F (1935) | 41.0°F (1989) | 2.80 in (1909) |
| August 8 | 111.9°F (1936) | 45.0°F (1921) | 1.77 in (1906) |
| August 9 | 113.0°F (1947) | 39.9°F (1927) | 1.61 in (2019) |
| August 10 | 111.9°F (1936) | 39.9°F (1985) | 1.86 in (1923) |
| August 11 | 109.9°F (1936) | 36.0°F (1902) | 1.90 in (2011) |
| August 12 | 107.1°F (1936) | 45.0°F (1924) | 1.45 in (1932) |
| August 13 | 114.1°F (1965) | 45.0°F (1917) | 1.30 in (1980) |
| August 14 | 111.0°F (1937) | 39.9°F (1929) | 0.82 in (1908) |
| August 15 | 114.1°F (1937) | 46.0°F (1994) | 1.83 in (1944) |
| August 16 | 108.0°F (1935) | 41.0°F (1897) | 1.69 in (1945) |
| August 17 | 107.1°F (1973) | 37.0°F (1943) | 1.33 in (1930) |
| August 18 | 109.0°F (1959) | 43.0°F (1966) | 1.27 in (2015) |
| August 19 | 105.1°F (1948) | 36.0°F (2004) | 1.26 in (1952) |
| August 20 | 107.1°F (1976) | 34.0°F (1950) | 1.60 in (1916) |
| August 21 | 104.0°F (1929) | 39.0°F (1986) | 0.75 in (1963) |
| August 22 | 109.0°F (1938) | 34.0°F (1923) | 2.15 in (1954) |
| August 23 | 109.9°F (1936) | 39.0°F (1927) | 1.52 in (1967) |
| August 24 | 106.0°F (1936) | 39.0°F (1928) | 1.20 in (1982) |
| August 25 | 109.9°F (1926) | 37.0°F (1934) | 1.13 in (1960) |
| August 26 | 109.9°F (1976) | 37.0°F (1910) | 1.00 in (2005) |
| August 27 | 108.0°F (1973) | 37.9°F (1906) | 0.70 in (1998) |
| August 28 | 105.1°F (1959) | 34.0°F (1893) | 1.90 in (1975) |
| August 29 | 111.0°F (2012) | 36.0°F (1946) | 3.10 in (1942) |
| August 30 | 109.9°F (2012) | 32.0°F (1935) | 3.73 in (1999) |
| August 31 | 105.1°F (2000) | 35.1°F (1958) | 1.15 in (1908) |