January weather in Sumter, SC
The average temperature in Sumter in January is 43.9°F (32.8°F–55.1°F). Average precipitation: 3.78 inches. Average snowfall is 0.3 inches.
January is a winter month in Sumter, and is cooler than the annual average of 62.1°F. Daily temperatures swing about 22.3°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 9h 58m. For travel, January is cool.
Avg High
55.1°F
Avg Low
32.8°F
Precipitation
3.78 in
Snow
0.3 in
January records in Sumter
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 80.1°F (1997) | 15.1°F (1984) | 2.15 in (1982) |
| January 2 | 80.1°F (2022) | 12.9°F (2018) | 1.87 in (1974) |
| January 3 | 77.0°F (1966) | 17.1°F (1979) | 2.52 in (2022) |
| January 4 | 77.0°F (1939) | 10.9°F (2018) | 2.05 in (1985) |
| January 5 | 77.0°F (2004) | 10.9°F (1981) | 0.67 in (1993) |
| January 6 | 78.1°F (1956) | 10.9°F (2018) | 1.95 in (1966) |
| January 7 | 79.0°F (1946) | 12.0°F (2014) | 2.40 in (1995) |
| January 8 | 78.1°F (1946) | 10.9°F (2014) | 2.13 in (1993) |
| January 9 | 77.0°F (1946) | 8.1°F (1970) | 1.42 in (1964) |
| January 10 | 78.1°F (1939) | 8.1°F (1970) | 2.62 in (2024) |
| January 11 | 82.0°F (1949) | 9.0°F (1982) | 1.46 in (1968) |
| January 12 | 77.0°F (1947) | 8.1°F (1982) | 1.48 in (1931) |
| January 13 | 77.0°F (1907) | 12.0°F (1981) | 1.72 in (1975) |
| January 14 | 82.0°F (1932) | 14.0°F (1962) | 1.81 in (1972) |
| January 15 | 79.0°F (1932) | 12.0°F (1948) | 1.68 in (1995) |
| January 16 | 77.0°F (1907) | 10.0°F (1994) | 1.07 in (1998) |
| January 17 | 79.0°F (1943) | 9.0°F (1994) | 1.72 in (2010) |
| January 18 | 80.1°F (1937) | 12.0°F (1959) | 0.96 in (1930) |
| January 19 | 78.1°F (1907) | 9.0°F (1994) | 1.12 in (1936) |
| January 20 | 78.1°F (2017) | 10.9°F (1994) | 1.58 in (1978) |
| January 21 | 78.1°F (1907) | 1.9°F (1985) | 1.12 in (1963) |
| January 22 | 80.1°F (1937) | 10.0°F (1961) | 1.47 in (1987) |
| January 23 | 81.0°F (1937) | 12.9°F (1960) | 1.48 in (2023) |
| January 24 | 80.1°F (1974) | 14.0°F (2003) | 2.26 in (1999) |
| January 25 | 80.1°F (1937) | 10.9°F (2014) | 1.66 in (2000) |
| January 26 | 78.1°F (1952) | 10.9°F (2014) | 1.36 in (1978) |
| January 27 | 79.0°F (1949) | 12.9°F (1940) | 1.00 in (1996) |
| January 28 | 82.9°F (1944) | 9.0°F (1986) | 2.19 in (1998) |
| January 29 | 82.0°F (1944) | 14.0°F (1940) | 1.15 in (2018) |
| January 30 | 81.0°F (2002) | 9.0°F (1934) | 1.23 in (1939) |
| January 31 | 82.0°F (1975) | 9.0°F (1934) | 1.50 in (2020) |