December weather in Cornell, WI
The average temperature in Cornell in December is 19.7°F (11.6°F–27.7°F). Average precipitation: 1.29 inches.
December is a winter month in Cornell, and is cooler than the annual average of 42.7°F. Daily temperatures swing about 16.1°F between overnight low and afternoon high. Daylight averages about 8h 34m. For travel, December is cold.
Avg High
27.7°F
Avg Low
11.6°F
Precipitation
1.29 in
Daylight
8h 34m
December records in Cornell
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 59.0°F (1998) | -9.0°F (1976) | 0.60 in (1985) |
| December 2 | 60.1°F (1982) | -17.0°F (1976) | 0.99 in (1945) |
| December 3 | 60.1°F (1962) | -11.0°F (1983) | 0.46 in (1934) |
| December 4 | 55.9°F (2012) | -17.0°F (1976) | 0.97 in (1953) |
| December 5 | 62.1°F (2001) | -18.0°F (2007) | 0.83 in (1960) |
| December 6 | 46.9°F (2015) | -20.9°F (2007) | 0.60 in (1948) |
| December 7 | 44.1°F (2012) | -26.0°F (1976) | 0.46 in (1935) |
| December 8 | 55.0°F (1946) | -20.9°F (1976) | 0.65 in (1969) |
| December 9 | 48.0°F (1990) | -23.1°F (1947) | 0.61 in (2009) |
| December 10 | 50.0°F (2020) | -25.1°F (1978) | 0.42 in (2025) |
| December 11 | 50.0°F (2020) | -15.0°F (1995) | 0.97 in (1964) |
| December 12 | 48.9°F (1949) | -16.1°F (1955) | 0.45 in (1931) |
| December 13 | 50.0°F (1998) | -18.0°F (1961) | 0.44 in (1991) |
| December 14 | 51.1°F (1998) | -22.0°F (1972) | 0.91 in (1995) |
| December 15 | 46.9°F (2023) | -22.0°F (1961) | 1.50 in (1990) |
| December 16 | 57.0°F (2021) | -18.9°F (1963) | 0.97 in (1940) |
| December 17 | 48.9°F (1984) | -25.1°F (1950) | 0.98 in (1984) |
| December 18 | 48.0°F (2002) | -25.1°F (1950) | 0.20 in (1998) |
| December 19 | 43.0°F (1997) | -38.9°F (1983) | 0.61 in (1939) |
| December 20 | 45.0°F (1967) | -27.9°F (1983) | 0.60 in (1988) |
| December 21 | 50.0°F (1967) | -26.0°F (1989) | 0.48 in (1990) |
| December 22 | 44.1°F (1957) | -26.0°F (1989) | 0.80 in (2006) |
| December 23 | 48.0°F (1950) | -26.0°F (1983) | 0.43 in (2009) |
| December 24 | 43.0°F (2023) | -29.9°F (1968) | 0.70 in (1936) |
| December 25 | 50.0°F (2023) | -35.0°F (1968) | 0.84 in (1932) |
| December 26 | 51.1°F (2023) | -27.9°F (2000) | 0.80 in (1936) |
| December 27 | 48.9°F (2023) | -25.1°F (1996) | 1.26 in (1982) |
| December 28 | 43.0°F (2003) | -20.0°F (2000) | 1.32 in (1959) |
| December 29 | 45.0°F (1999) | -17.0°F (1976) | 0.37 in (1978) |
| December 30 | 45.0°F (2004) | -26.0°F (1976) | 0.68 in (1972) |
| December 31 | 46.9°F (1965) | -29.9°F (1973) | 0.61 in (2019) |