January weather in Portsmouth, VA
The average temperature in Portsmouth in January is 42.0°F (34.0°F–50.0°F). Average precipitation: 2.93 inches. Average snowfall is 2.3 inches.
January is a winter month in Portsmouth, and is cooler than the annual average of 61.4°F. Daily temperatures swing about 16°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 44m. For travel, January is cool.
Avg High
50.0°F
Avg Low
34.0°F
Precipitation
2.93 in
Snow
2.3 in
January records in Portsmouth
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 77.0°F (2022) | 19.2°F (2018) | 1.78 in (1987) |
| January 2 | 75.0°F (1985) | 16.2°F (2018) | 1.74 in (1979) |
| January 3 | 73.9°F (2004) | 13.1°F (2018) | 2.15 in (1985) |
| January 4 | 75.9°F (2004) | 14.0°F (1981) | 3.28 in (1992) |
| January 5 | 73.9°F (2004) | 12.0°F (1981) | 1.20 in (1971) |
| January 6 | 75.0°F (2005) | 14.2°F (2018) | 1.19 in (1962) |
| January 7 | 73.9°F (1946) | 13.1°F (2014) | 1.49 in (1996) |
| January 8 | 73.9°F (1998) | 14.0°F (1970) | 2.55 in (1967) |
| January 9 | 73.9°F (2008) | 10.9°F (1970) | 1.44 in (2024) |
| January 10 | 73.9°F (2026) | 9.0°F (1982) | 1.27 in (1952) |
| January 11 | 75.9°F (1974) | 9.0°F (1982) | 0.92 in (2014) |
| January 12 | 73.9°F (2018) | 16.0°F (1981) | 1.04 in (1996) |
| January 13 | 75.9°F (2005) | 17.1°F (1981) | 1.64 in (1972) |
| January 14 | 75.0°F (1995) | 17.1°F (1964) | 13.10 in (2005) |
| January 15 | 73.0°F (2007) | 12.0°F (1994) | 1.12 in (2016) |
| January 16 | 72.0°F (1953) | 10.0°F (1972) | 1.81 in (2022) |
| January 17 | 73.0°F (1949) | 7.0°F (1977) | 1.10 in (2013) |
| January 18 | 72.0°F (1990) | -17.9°F (2011) | 1.92 in (1987) |
| January 19 | 72.0°F (2023) | -62.9°F (2011) | 2.01 in (1987) |
| January 20 | 72.0°F (1951) | 3.9°F (1985) | 1.12 in (1969) |
| January 21 | 73.0°F (1959) | -0.9°F (1985) | 1.42 in (1979) |
| January 22 | 72.0°F (1959) | 15.1°F (1970) | 1.58 in (1987) |
| January 23 | 75.0°F (1974) | 15.3°F (2014) | 1.47 in (2016) |
| January 24 | 73.9°F (1967) | 14.2°F (2014) | 1.12 in (2019) |
| January 25 | 75.9°F (1950) | 17.1°F (1948) | 1.07 in (2023) |
| January 26 | 77.0°F (1950) | 23.0°F (1982) | 0.83 in (2011) |
| January 27 | 75.9°F (1967) | 1.2°F (2018) | 1.18 in (1998) |
| January 28 | 75.0°F (1974) | 15.1°F (1986) | 1.19 in (1973) |
| January 29 | 78.1°F (1975) | 1.2°F (2018) | 0.66 in (2018) |
| January 30 | 84.0°F (2013) | 1.2°F (2018) | 0.73 in (2003) |
| January 31 | 73.0°F (2025) | 12.9°F (1966) | 1.71 in (2003) |