January weather in Charlestown, MD
The average temperature in Charlestown in January is 32.5°F (24.9°F–40.1°F). Average precipitation: 3.63 inches.
January is a winter month in Charlestown, and is cooler than the annual average of 55.4°F. Daily temperatures swing about 15.2°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 9h 30m. For travel, January is cold.
Avg High
40.1°F
Avg Low
24.9°F
Precipitation
3.63 in
Daylight
9h 30m
January records in Charlestown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 60.1°F (1973) | 5.0°F (2018) | 1.00 in (2007) |
| January 2 | 60.1°F (1998) | 0.0°F (1968) | 2.38 in (1948) |
| January 3 | 63.0°F (2022) | 5.0°F (1979) | 2.85 in (1936) |
| January 4 | 66.9°F (1950) | 1.9°F (2014) | 2.09 in (1944) |
| January 5 | 68.0°F (1950) | 1.9°F (2014) | 1.81 in (1949) |
| January 6 | 70.0°F (1950) | 3.9°F (1988) | 1.63 in (1962) |
| January 7 | 73.0°F (2007) | 1.0°F (2014) | 1.72 in (1996) |
| January 8 | 64.0°F (1998) | -0.9°F (1970) | 1.00 in (2007) |
| January 9 | 72.0°F (1937) | -2.0°F (1970) | 1.25 in (1964) |
| January 10 | 64.9°F (2008) | -0.9°F (1970) | 3.85 in (2024) |
| January 11 | 66.9°F (1975) | -5.1°F (1988) | 1.08 in (1991) |
| January 12 | 72.0°F (1990) | -2.0°F (1981) | 1.38 in (2012) |
| January 13 | 66.9°F (2020) | -6.0°F (1981) | 1.55 in (2018) |
| January 14 | 66.0°F (1992) | 0.0°F (1988) | 1.66 in (1958) |
| January 15 | 63.0°F (1995) | -0.9°F (1964) | 1.50 in (1999) |
| January 16 | 63.0°F (1953) | 0.0°F (1964) | 1.13 in (1945) |
| January 17 | 60.1°F (1990) | -8.0°F (1982) | 1.28 in (1978) |
| January 18 | 66.0°F (2006) | -7.1°F (1977) | 1.47 in (1994) |
| January 19 | 64.0°F (1951) | -4.0°F (1994) | 1.19 in (1996) |
| January 20 | 57.9°F (1991) | -2.9°F (1984) | 1.88 in (1995) |
| January 21 | 63.0°F (1959) | -7.1°F (1985) | 1.48 in (1979) |
| January 22 | 64.0°F (1959) | -9.0°F (1961) | 0.78 in (1952) |
| January 23 | 66.0°F (1967) | -2.9°F (1936) | 0.99 in (1966) |
| January 24 | 71.1°F (1967) | -15.0°F (2003) | 2.05 in (1953) |
| January 25 | 66.9°F (1967) | -5.1°F (2003) | 2.09 in (1958) |
| January 26 | 73.9°F (1950) | -4.0°F (1948) | 1.62 in (1990) |
| January 27 | 69.1°F (1974) | 0.0°F (1948) | 1.21 in (1976) |
| January 28 | 63.0°F (2002) | -6.0°F (1987) | 1.40 in (1994) |
| January 29 | 66.0°F (1975) | -4.0°F (1963) | 1.40 in (2013) |
| January 30 | 70.0°F (2002) | 1.0°F (2026) | 1.61 in (1939) |
| January 31 | 66.0°F (2013) | -0.9°F (2019) | 1.87 in (2013) |