December weather in Hartford, WI
The average temperature in Hartford in December is 23.3°F (15.4°F–31.3°F). Average precipitation: 1.68 inches. Average snowfall is 10.1 inches.
December is a winter month in Hartford, and is cooler than the annual average of 44.7°F. Daily temperatures swing about 15.9°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 8h 48m. For travel, December is cold.
Avg High
31.3°F
Avg Low
15.4°F
Precipitation
1.68 in
Snow
10.1 in
December records in Hartford
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 60.1°F (1970) | -9.9°F (1976) | 1.10 in (1985) |
| December 2 | 63.0°F (1982) | -9.9°F (1976) | 1.30 in (2007) |
| December 3 | 61.0°F (1982) | -4.0°F (1976) | 0.86 in (1953) |
| December 4 | 63.0°F (1998) | -4.0°F (1976) | 0.60 in (1973) |
| December 5 | 60.1°F (2017) | -4.0°F (2005) | 0.63 in (1948) |
| December 6 | 64.9°F (2001) | -8.0°F (2007) | 0.38 in (1966) |
| December 7 | 51.1°F (1963) | -16.1°F (1972) | 0.45 in (1969) |
| December 8 | 53.1°F (1966) | -13.0°F (1976) | 0.66 in (1966) |
| December 9 | 54.0°F (2023) | -9.9°F (1958) | 0.59 in (2008) |
| December 10 | 51.1°F (2024) | -11.9°F (1958) | 1.02 in (2003) |
| December 11 | 54.0°F (2015) | -16.1°F (1972) | 1.45 in (2021) |
| December 12 | 55.0°F (1991) | -9.0°F (1962) | 1.04 in (2010) |
| December 13 | 55.9°F (1975) | -17.0°F (1985) | 0.48 in (2001) |
| December 14 | 59.0°F (2015) | -9.9°F (1972) | 1.37 in (2015) |
| December 15 | 55.0°F (2015) | -11.9°F (2010) | 1.64 in (1893) |
| December 16 | 63.0°F (2021) | -9.9°F (1985) | 0.86 in (1992) |
| December 17 | 51.1°F (1984) | -16.1°F (1985) | 0.31 in (1990) |
| December 18 | 46.9°F (1957) | -18.9°F (1983) | 0.45 in (2002) |
| December 19 | 52.0°F (2002) | -29.0°F (1983) | 0.95 in (1987) |
| December 20 | 50.0°F (1967) | -20.0°F (1989) | 0.86 in (1895) |
| December 21 | 54.0°F (1967) | -20.0°F (1989) | 1.33 in (2012) |
| December 22 | 52.0°F (1957) | -16.1°F (1989) | 0.43 in (1968) |
| December 23 | 48.9°F (1957) | -23.1°F (1983) | 0.90 in (2006) |
| December 24 | 55.9°F (1982) | -27.0°F (1983) | 1.06 in (1979) |
| December 25 | 57.9°F (1982) | -27.0°F (2000) | 0.48 in (1895) |
| December 26 | 53.1°F (2019) | -26.0°F (2000) | 1.20 in (1988) |
| December 27 | 52.0°F (2019) | -15.0°F (2017) | 0.40 in (1968) |
| December 28 | 57.9°F (1984) | -22.0°F (2017) | 0.96 in (1959) |
| December 29 | 57.9°F (1984) | -18.9°F (1976) | 1.20 in (1984) |
| December 30 | 54.0°F (2022) | -16.1°F (2017) | 1.00 in (1972) |
| December 31 | 53.1°F (2002) | -17.0°F (1963) | 1.00 in (1893) |