August weather in Union, SC
The average temperature in Union in August is 78.0°F (67.3°F–88.7°F). Average precipitation: 3.99 inches.
August is a summer month in Union, and is warmer than the annual average of 60.4°F. Daily temperatures swing about 21.4°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 18m. For travel, August is hot.
Avg High
88.7°F
Avg Low
67.3°F
Precipitation
3.99 in
Daylight
13h 18m
August records in Union
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.9°F (1980) | 55.0°F (1966) | 1.47 in (2014) |
| August 2 | 104.0°F (1980) | 55.9°F (1997) | 1.58 in (1987) |
| August 3 | 100.9°F (1980) | 55.0°F (1997) | 2.05 in (2018) |
| August 4 | 102.9°F (1953) | 55.0°F (1985) | 2.36 in (1978) |
| August 5 | 100.0°F (1954) | 53.1°F (1976) | 2.08 in (1986) |
| August 6 | 102.9°F (1954) | 55.0°F (1985) | 2.17 in (2003) |
| August 7 | 104.0°F (1980) | 46.0°F (1957) | 1.43 in (2015) |
| August 8 | 102.9°F (1980) | 51.1°F (1957) | 4.80 in (1972) |
| August 9 | 102.9°F (1951) | 52.0°F (2004) | 1.27 in (2014) |
| August 10 | 102.9°F (1980) | 57.0°F (1989) | 1.92 in (1978) |
| August 11 | 106.0°F (2007) | 57.9°F (1969) | 5.50 in (1970) |
| August 12 | 100.9°F (1956) | 57.9°F (1969) | 6.60 in (1991) |
| August 13 | 100.0°F (1956) | 52.0°F (1967) | 1.73 in (1970) |
| August 14 | 100.9°F (1999) | 52.0°F (1967) | 1.90 in (1991) |
| August 15 | 104.0°F (1999) | 55.0°F (1967) | 1.59 in (1955) |
| August 16 | 100.9°F (1980) | 53.1°F (1967) | 1.68 in (1998) |
| August 17 | 105.1°F (1954) | 50.0°F (1979) | 4.35 in (1985) |
| August 18 | 107.1°F (1954) | 51.1°F (1979) | 2.00 in (2019) |
| August 19 | 105.1°F (2000) | 53.1°F (1979) | 1.24 in (1995) |
| August 20 | 100.0°F (1968) | 55.0°F (1976) | 1.56 in (1986) |
| August 21 | 100.0°F (1968) | 54.0°F (1957) | 1.35 in (1977) |
| August 22 | 104.0°F (1983) | 55.0°F (1957) | 1.84 in (1965) |
| August 23 | 102.9°F (1968) | 52.0°F (1956) | 2.96 in (1967) |
| August 24 | 104.0°F (1968) | 51.1°F (1969) | 3.50 in (1967) |
| August 25 | 102.9°F (1968) | 51.1°F (1969) | 2.00 in (1968) |
| August 26 | 99.0°F (1975) | 48.9°F (1952) | 1.17 in (2008) |
| August 27 | 100.9°F (1975) | 53.1°F (1952) | 4.11 in (1995) |
| August 28 | 100.0°F (1954) | 53.1°F (1968) | 2.54 in (1949) |
| August 29 | 99.0°F (2010) | 46.0°F (1968) | 1.05 in (1949) |
| August 30 | 98.1°F (1998) | 46.0°F (1968) | 3.22 in (1959) |
| August 31 | 97.0°F (1970) | 46.0°F (1968) | 3.80 in (2006) |