March weather in Union, SC
The average temperature in Union in March is 51.1°F (37.6°F–64.6°F). Average precipitation: 4.29 inches. Average snowfall is 0.4 inches.
March is a spring month in Union, and is cooler than the annual average of 60.4°F. Daily temperatures swing about 27°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 11h 47m. For travel, March is cool.
Avg High
64.6°F
Avg Low
37.6°F
Precipitation
4.29 in
Snow
0.4 in
March records in Union
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 82.9°F (1972) | 12.0°F (2002) | 1.60 in (2009) |
| March 2 | 80.1°F (1976) | 12.9°F (2002) | 2.24 in (2024) |
| March 3 | 82.9°F (1976) | 15.1°F (1980) | 3.15 in (1971) |
| March 4 | 88.0°F (1976) | 14.0°F (1975) | 2.75 in (1952) |
| March 5 | 87.1°F (1976) | 12.9°F (1960) | 2.01 in (1984) |
| March 6 | 82.9°F (1955) | 9.0°F (1960) | 2.62 in (1963) |
| March 7 | 82.0°F (1974) | 15.1°F (1954) | 2.58 in (1996) |
| March 8 | 88.0°F (1974) | 18.0°F (1966) | 1.63 in (1998) |
| March 9 | 88.0°F (1974) | 12.9°F (1996) | 1.93 in (2022) |
| March 10 | 87.1°F (1974) | 12.9°F (1996) | 1.25 in (1978) |
| March 11 | 86.0°F (1974) | 19.0°F (1998) | 1.68 in (1952) |
| March 12 | 84.0°F (1990) | 18.0°F (1969) | 1.87 in (1962) |
| March 13 | 84.9°F (1955) | 15.1°F (1998) | 2.53 in (1993) |
| March 14 | 84.0°F (1990) | 15.1°F (1998) | 2.23 in (1975) |
| March 15 | 86.0°F (1973) | 12.0°F (1993) | 0.97 in (2001) |
| March 16 | 87.1°F (1967) | 12.9°F (1993) | 3.10 in (1964) |
| March 17 | 87.1°F (2016) | 19.9°F (1954) | 2.80 in (1983) |
| March 18 | 84.9°F (2015) | 14.0°F (1967) | 1.46 in (1965) |
| March 19 | 87.1°F (1963) | 15.1°F (1967) | 1.99 in (1969) |
| March 20 | 84.9°F (1963) | 19.9°F (1967) | 1.89 in (2003) |
| March 21 | 86.0°F (1968) | 15.1°F (1965) | 2.30 in (1980) |
| March 22 | 87.1°F (2017) | 16.0°F (1965) | 1.80 in (1977) |
| March 23 | 87.1°F (1995) | 17.1°F (1965) | 1.03 in (1981) |
| March 24 | 90.0°F (1995) | 19.9°F (2004) | 2.45 in (1979) |
| March 25 | 86.0°F (2011) | 19.0°F (1956) | 1.45 in (2020) |
| March 26 | 88.0°F (2007) | 23.0°F (1966) | 2.39 in (1964) |
| March 27 | 86.0°F (1967) | 16.0°F (1955) | 1.78 in (1993) |
| March 28 | 86.0°F (2020) | 21.9°F (1955) | 2.16 in (1984) |
| March 29 | 84.9°F (2007) | 19.9°F (2015) | 2.86 in (1980) |
| March 30 | 84.9°F (1989) | 21.9°F (1955) | 3.09 in (1960) |
| March 31 | 87.1°F (1985) | 18.0°F (1964) | 1.08 in (1970) |