December weather in Fort Atkinson, WI
The average temperature in Fort Atkinson in December is 25.5°F (17.9°F–33.2°F). Average precipitation: 1.71 inches. Average snowfall is 8.7 inches.
December is a winter month in Fort Atkinson, and is cooler than the annual average of 47.3°F. Daily temperatures swing about 15.3°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 8h 51m. For travel, December is cold.
Avg High
33.2°F
Avg Low
17.9°F
Precipitation
1.71 in
Snow
8.7 in
December records in Fort Atkinson
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 61.0°F (1962) | -5.1°F (1976) | 0.83 in (1985) |
| December 2 | 60.1°F (1962) | -7.1°F (1976) | 1.54 in (2007) |
| December 3 | 63.0°F (1970) | -7.1°F (1976) | 0.87 in (1953) |
| December 4 | 66.0°F (2012) | 0.0°F (1976) | 0.61 in (2011) |
| December 5 | 62.1°F (2001) | -4.0°F (2005) | 1.35 in (1973) |
| December 6 | 66.9°F (2001) | -13.0°F (2007) | 0.84 in (1943) |
| December 7 | 55.9°F (1946) | -11.9°F (2007) | 0.66 in (1980) |
| December 8 | 61.0°F (1946) | -8.0°F (1976) | 0.62 in (1966) |
| December 9 | 60.1°F (1946) | -9.9°F (1977) | 0.96 in (2009) |
| December 10 | 53.1°F (1946) | -15.0°F (1958) | 1.19 in (2003) |
| December 11 | 57.0°F (1949) | -15.0°F (1976) | 1.30 in (1970) |
| December 12 | 57.0°F (1949) | -9.9°F (1962) | 0.91 in (1983) |
| December 13 | 57.9°F (1991) | -14.1°F (1958) | 0.47 in (2001) |
| December 14 | 61.0°F (2015) | -11.0°F (1985) | 1.28 in (2015) |
| December 15 | 57.9°F (1975) | -11.0°F (1958) | 1.80 in (1971) |
| December 16 | 66.0°F (2021) | -15.0°F (1951) | 0.93 in (1992) |
| December 17 | 52.0°F (1984) | -14.1°F (1951) | 0.23 in (1961) |
| December 18 | 52.0°F (2015) | -14.1°F (1945) | 0.26 in (1990) |
| December 19 | 57.0°F (2015) | -23.1°F (1983) | 1.25 in (1968) |
| December 20 | 54.0°F (1967) | -23.1°F (1983) | 1.51 in (1987) |
| December 21 | 54.0°F (1967) | -18.9°F (1989) | 0.94 in (2012) |
| December 22 | 51.1°F (1957) | -18.9°F (1989) | 0.38 in (1984) |
| December 23 | 55.9°F (1941) | -18.9°F (1989) | 0.98 in (2007) |
| December 24 | 57.9°F (2015) | -24.0°F (1983) | 0.57 in (1965) |
| December 25 | 57.0°F (1982) | -29.0°F (1983) | 1.00 in (1965) |
| December 26 | 60.1°F (1982) | -25.1°F (1962) | 0.53 in (2016) |
| December 27 | 55.0°F (2019) | -20.0°F (1950) | 2.20 in (1942) |
| December 28 | 55.9°F (1982) | -18.0°F (2000) | 1.15 in (1946) |
| December 29 | 64.0°F (1984) | -15.0°F (2000) | 1.26 in (2015) |
| December 30 | 55.0°F (2019) | -14.1°F (1963) | 1.33 in (1972) |
| December 31 | 55.9°F (2002) | -17.0°F (1963) | 0.40 in (2011) |