January weather in Sag Harbor, NY
The average temperature in Sag Harbor in January is 30.7°F (23.0°F–38.5°F). Average precipitation: 4.05 inches. Average snowfall is 7.2 inches.
January is a winter month in Sag Harbor, and is cooler than the annual average of 50.8°F. Daily temperatures swing about 15.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 22m. For travel, January is cold.
Avg High
38.5°F
Avg Low
23.0°F
Precipitation
4.05 in
Snow
7.2 in
January records in Sag Harbor
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 61.0°F (1966) | 5.0°F (1963) | 1.61 in (1945) |
| January 2 | 59.0°F (2019) | 6.1°F (2018) | 2.35 in (1987) |
| January 3 | 59.0°F (2000) | 9.0°F (2018) | 2.22 in (1953) |
| January 4 | 62.1°F (1998) | -5.1°F (2014) | 2.78 in (1944) |
| January 5 | 66.9°F (2007) | -4.0°F (2014) | 1.00 in (2000) |
| January 6 | 61.0°F (2007) | 3.9°F (1996) | 2.14 in (1962) |
| January 7 | 61.0°F (2007) | 3.0°F (2018) | 1.44 in (2009) |
| January 8 | 55.9°F (1998) | 3.0°F (2018) | 1.92 in (1996) |
| January 9 | 62.1°F (1937) | 0.0°F (1968) | 1.45 in (1991) |
| January 10 | 55.0°F (1937) | 3.0°F (2004) | 2.40 in (2024) |
| January 11 | 60.1°F (2016) | -7.1°F (1988) | 1.30 in (2016) |
| January 12 | 57.9°F (2020) | 1.0°F (1981) | 1.77 in (1991) |
| January 13 | 57.9°F (2018) | 5.0°F (1981) | 1.84 in (1948) |
| January 14 | 66.0°F (1932) | 3.0°F (1988) | 2.27 in (1978) |
| January 15 | 59.0°F (1995) | 0.0°F (1957) | 2.10 in (1940) |
| January 16 | 60.1°F (1932) | -5.1°F (2009) | 2.08 in (2021) |
| January 17 | 53.1°F (1995) | -6.0°F (2009) | 1.73 in (1941) |
| January 18 | 57.0°F (1973) | -9.9°F (1982) | 1.31 in (1994) |
| January 19 | 55.0°F (1949) | 0.0°F (1982) | 1.44 in (1936) |
| January 20 | 59.0°F (2006) | -2.9°F (1940) | 2.49 in (1978) |
| January 21 | 55.0°F (1974) | 0.0°F (1985) | 3.09 in (1979) |
| January 22 | 53.1°F (1958) | -11.0°F (1984) | 0.85 in (1958) |
| January 23 | 57.0°F (1933) | 0.0°F (1976) | 1.38 in (1966) |
| January 24 | 62.1°F (1967) | 5.0°F (2005) | 1.35 in (1965) |
| January 25 | 55.0°F (1947) | 1.0°F (1945) | 1.54 in (1979) |
| January 26 | 55.9°F (1978) | 6.1°F (1991) | 1.62 in (2026) |
| January 27 | 57.9°F (1944) | 3.0°F (1935) | 1.67 in (1963) |
| January 28 | 60.1°F (2002) | -4.0°F (1935) | 1.00 in (1976) |
| January 29 | 62.1°F (2002) | -2.0°F (2005) | 1.07 in (1973) |
| January 30 | 57.9°F (2002) | 3.9°F (2014) | 1.72 in (1990) |
| January 31 | 57.0°F (1947) | -2.0°F (2022) | 1.15 in (1949) |