January weather in Cottage Grove, WI
The average temperature in Cottage Grove in January is 19.4°F (11.8°F–27.0°F). Average precipitation: 1.47 inches. Average snowfall is 13.7 inches.
January is a winter month in Cottage Grove, and is cooler than the annual average of 47°F. Daily temperatures swing about 15.2°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 9h 9m. For travel, January is cold.
Avg High
27.0°F
Avg Low
11.8°F
Precipitation
1.47 in
Snow
13.7 in
January records in Cottage Grove
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 43.0°F (1954) | -14.1°F (1974) | 1.11 in (1941) |
| January 2 | 52.0°F (2000) | -18.9°F (1979) | 0.54 in (2006) |
| January 3 | 51.1°F (1998) | -13.9°F (2014) | 0.60 in (1971) |
| January 4 | 48.9°F (2007) | -15.0°F (1977) | 0.60 in (1982) |
| January 5 | 51.1°F (2012) | -20.0°F (1999) | 0.49 in (1946) |
| January 6 | 48.9°F (2012) | -18.0°F (1988) | 0.58 in (2026) |
| January 7 | 50.0°F (2008) | -20.9°F (1942) | 1.10 in (2019) |
| January 8 | 55.0°F (2026) | -23.1°F (1942) | 0.58 in (1998) |
| January 9 | 55.9°F (2026) | -22.0°F (1977) | 0.66 in (1946) |
| January 10 | 53.1°F (1975) | -22.0°F (1979) | 0.58 in (2017) |
| January 11 | 53.1°F (2012) | -27.9°F (1979) | 0.35 in (1991) |
| January 12 | 50.0°F (1961) | -18.9°F (1974) | 1.07 in (1960) |
| January 13 | 53.1°F (1961) | -14.1°F (1963) | 0.56 in (1950) |
| January 14 | 48.0°F (1952) | -26.0°F (1963) | 0.50 in (1940) |
| January 15 | 54.0°F (1953) | -29.9°F (1963) | 0.36 in (1969) |
| January 16 | 50.0°F (1974) | -27.9°F (1979) | 0.61 in (2017) |
| January 17 | 50.0°F (1973) | -26.0°F (1982) | 0.51 in (1941) |
| January 18 | 54.0°F (1996) | -27.0°F (1994) | 0.80 in (1996) |
| January 19 | 46.9°F (2006) | -27.0°F (1994) | 1.07 in (1995) |
| January 20 | 50.0°F (2018) | -27.0°F (1994) | 0.75 in (1974) |
| January 21 | 52.0°F (1964) | -20.9°F (1963) | 0.47 in (1998) |
| January 22 | 53.1°F (1964) | -18.9°F (1963) | 1.12 in (2018) |
| January 23 | 48.0°F (1967) | -27.0°F (1963) | 0.35 in (1969) |
| January 24 | 55.0°F (1981) | -18.9°F (2026) | 0.78 in (1964) |
| January 25 | 53.1°F (1973) | -20.0°F (1963) | 1.04 in (1950) |
| January 26 | 62.1°F (1944) | -22.9°F (2019) | 1.15 in (1974) |
| January 27 | 55.0°F (2002) | -18.0°F (1976) | 0.81 in (1944) |
| January 28 | 48.9°F (2025) | -20.9°F (1966) | 0.54 in (2006) |
| January 29 | 54.0°F (2013) | -26.0°F (1951) | 1.84 in (2013) |
| January 30 | 57.0°F (2025) | -36.9°F (1951) | 0.65 in (1947) |
| January 31 | 55.9°F (1989) | -25.8°F (2019) | 0.27 in (1965) |