January weather in Watertown, SD
The average temperature in Watertown in January is 12.2°F (3.1°F–21.4°F). Average precipitation: 0.58 inches. Average snowfall is 6.7 inches.
January is a winter month in Watertown, and is cooler than the annual average of 43°F. Daily temperatures swing about 18.3°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 8h 57m. For travel, January is cold.
Avg High
21.4°F
Avg Low
3.1°F
Precipitation
0.58 in
Snow
6.7 in
January records in Watertown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 50.0°F (1895) | -33.0°F (1974) | 1.10 in (1941) |
| January 2 | 48.9°F (1998) | -32.1°F (1928) | 0.36 in (1975) |
| January 3 | 48.0°F (1895) | -29.9°F (1919) | 0.35 in (1943) |
| January 4 | 46.9°F (2012) | -27.9°F (1912) | 0.26 in (1949) |
| January 5 | 57.0°F (2012) | -32.1°F (1924) | 0.28 in (1909) |
| January 6 | 45.0°F (2012) | -29.0°F (1909) | 0.60 in (1967) |
| January 7 | 48.9°F (1990) | -29.0°F (1942) | 0.26 in (1975) |
| January 8 | 52.0°F (1963) | -29.9°F (1912) | 0.32 in (1923) |
| January 9 | 52.0°F (1958) | -29.0°F (1977) | 1.27 in (1939) |
| January 10 | 52.0°F (1990) | -29.9°F (1982) | 0.40 in (2017) |
| January 11 | 50.0°F (1958) | -27.0°F (1918) | 0.50 in (1905) |
| January 12 | 48.9°F (1987) | -38.0°F (1912) | 0.20 in (1899) |
| January 13 | 48.9°F (1987) | -40.0°F (1916) | 0.38 in (1938) |
| January 14 | 48.9°F (1944) | -38.0°F (1916) | 0.52 in (1952) |
| January 15 | 46.0°F (1919) | -35.0°F (1972) | 0.45 in (1956) |
| January 16 | 45.0°F (1974) | -26.0°F (1977) | 0.40 in (1911) |
| January 17 | 50.0°F (1913) | -33.0°F (1943) | 0.60 in (1895) |
| January 18 | 46.9°F (1923) | -31.0°F (1970) | 0.48 in (1996) |
| January 19 | 55.9°F (1900) | -33.0°F (1970) | 0.30 in (1979) |
| January 20 | 55.9°F (1944) | -26.0°F (1936) | 0.70 in (1894) |
| January 21 | 50.0°F (1933) | -29.9°F (1954) | 0.50 in (1917) |
| January 22 | 54.0°F (1942) | -31.0°F (1936) | 0.50 in (1979) |
| January 23 | 57.0°F (1981) | -31.0°F (1948) | 0.25 in (2010) |
| January 24 | 64.9°F (1981) | -36.0°F (1904) | 0.14 in (1969) |
| January 25 | 50.0°F (1944) | -33.0°F (1904) | 0.48 in (1925) |
| January 26 | 54.0°F (1931) | -27.9°F (1895) | 0.33 in (1979) |
| January 27 | 55.0°F (1989) | -29.0°F (1904) | 0.73 in (1917) |
| January 28 | 48.9°F (1931) | -29.0°F (1915) | 0.29 in (1975) |
| January 29 | 55.9°F (1931) | -31.0°F (1951) | 0.56 in (1916) |
| January 30 | 50.0°F (1931) | -33.9°F (2019) | 0.50 in (1922) |
| January 31 | 54.0°F (2024) | -27.9°F (1918) | 0.62 in (2011) |