December weather in Hillsdale, IL
The average temperature in Hillsdale in December is 28.2°F (20.5°F–35.9°F). Average precipitation: 2.12 inches. Average snowfall is 7.3 inches.
December is a winter month in Hillsdale, and is cooler than the annual average of 50.9°F. Daily temperatures swing about 15.4°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 8h 60m. For travel, December is cold.
Avg High
35.9°F
Avg Low
20.5°F
Precipitation
2.12 in
Snow
7.3 in
December records in Hillsdale
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 63.0°F (1962) | 7.0°F (1985) | 1.40 in (1985) |
| December 2 | 66.9°F (1962) | -2.9°F (1976) | 2.56 in (1982) |
| December 3 | 70.0°F (2012) | -2.9°F (1942) | 0.87 in (1990) |
| December 4 | 70.0°F (1998) | -2.9°F (1991) | 1.37 in (1973) |
| December 5 | 69.1°F (2001) | -0.9°F (2005) | 0.92 in (1999) |
| December 6 | 62.1°F (1946) | -8.0°F (1977) | 1.58 in (1994) |
| December 7 | 59.0°F (1946) | -9.9°F (1976) | 1.01 in (1980) |
| December 8 | 66.0°F (1946) | -7.1°F (1942) | 0.79 in (2009) |
| December 9 | 64.0°F (1946) | -14.1°F (1958) | 1.07 in (2003) |
| December 10 | 60.1°F (2020) | -11.0°F (1977) | 1.57 in (1970) |
| December 11 | 59.0°F (1965) | -15.0°F (1972) | 1.14 in (1899) |
| December 12 | 64.9°F (1991) | -8.0°F (2000) | 1.25 in (1946) |
| December 13 | 63.0°F (2015) | -16.1°F (1903) | 1.20 in (2015) |
| December 14 | 61.0°F (1975) | -11.9°F (1901) | 1.51 in (2011) |
| December 15 | 68.0°F (2021) | -15.0°F (1989) | 1.85 in (1992) |
| December 16 | 57.9°F (1984) | -9.9°F (1963) | 0.70 in (1940) |
| December 17 | 57.0°F (1895) | -7.1°F (1945) | 0.65 in (1895) |
| December 18 | 59.0°F (1962) | -14.1°F (1983) | 1.45 in (1957) |
| December 19 | 57.9°F (1988) | -18.0°F (1983) | 1.42 in (1987) |
| December 20 | 59.0°F (1967) | -13.0°F (1963) | 1.29 in (1957) |
| December 21 | 59.0°F (1967) | -18.9°F (1963) | 0.98 in (1949) |
| December 22 | 55.9°F (1965) | -17.0°F (1989) | 0.93 in (1979) |
| December 23 | 61.0°F (2020) | -18.9°F (1983) | 0.75 in (1932) |
| December 24 | 61.0°F (2021) | -20.0°F (1983) | 1.92 in (1965) |
| December 25 | 61.0°F (2019) | -14.1°F (1983) | 0.72 in (1957) |
| December 26 | 54.0°F (2014) | -14.1°F (1962) | 0.65 in (1942) |
| December 27 | 61.0°F (1982) | -8.0°F (2017) | 1.74 in (1942) |
| December 28 | 66.9°F (1984) | -11.0°F (1961) | 1.90 in (2015) |
| December 29 | 63.0°F (1984) | -6.0°F (1983) | 1.00 in (2020) |
| December 30 | 61.0°F (2002) | -9.9°F (1976) | 1.44 in (1936) |
| December 31 | 60.1°F (1965) | -14.1°F (1967) | 1.07 in (1906) |