December weather in Oak Forest, IL
The average temperature in Oak Forest in December is 28.9°F (21.5°F–36.3°F). Average precipitation: 2.47 inches. Average snowfall is 4.0 inches.
December is a winter month in Oak Forest, and is cooler than the annual average of 49.8°F. Daily temperatures swing about 14.8°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 8h 60m. For travel, December is cold.
Avg High
36.3°F
Avg Low
21.5°F
Precipitation
2.47 in
Snow
4.0 in
December records in Oak Forest
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.0°F (1970) | 1.0°F (1958) | 0.94 in (2006) |
| December 2 | 64.9°F (1982) | 3.9°F (1966) | 0.74 in (1953) |
| December 3 | 70.0°F (1982) | 1.0°F (1976) | 3.87 in (1982) |
| December 4 | 70.0°F (2012) | 1.0°F (1991) | 1.28 in (1973) |
| December 5 | 66.9°F (1998) | 1.0°F (1991) | 2.22 in (1999) |
| December 6 | 66.9°F (2001) | -0.9°F (1964) | 0.47 in (2021) |
| December 7 | 60.1°F (1980) | -2.0°F (2005) | 1.58 in (1994) |
| December 8 | 62.1°F (1966) | -4.0°F (1958) | 1.27 in (1980) |
| December 9 | 62.1°F (1991) | -14.1°F (1958) | 0.65 in (2009) |
| December 10 | 62.1°F (1971) | -9.9°F (1958) | 2.77 in (1971) |
| December 11 | 57.9°F (2021) | -8.0°F (1972) | 1.15 in (2021) |
| December 12 | 55.9°F (1990) | -8.0°F (1962) | 1.90 in (1972) |
| December 13 | 61.0°F (2015) | -9.0°F (1958) | 0.60 in (2020) |
| December 14 | 62.1°F (1975) | -5.1°F (1985) | 1.02 in (2015) |
| December 15 | 62.1°F (1971) | -9.9°F (1958) | 1.33 in (2011) |
| December 16 | 64.0°F (1975) | -8.0°F (1989) | 0.71 in (2007) |
| December 17 | 61.0°F (1984) | -8.0°F (1989) | 0.76 in (2023) |
| December 18 | 55.0°F (1957) | -9.0°F (1985) | 0.66 in (2002) |
| December 19 | 55.9°F (1957) | -11.9°F (1983) | 1.14 in (2008) |
| December 20 | 57.0°F (1967) | -13.0°F (1963) | 0.99 in (1987) |
| December 21 | 61.0°F (1967) | -15.0°F (1989) | 0.95 in (1952) |
| December 22 | 55.9°F (1957) | -18.0°F (1989) | 0.74 in (1984) |
| December 23 | 54.0°F (1982) | -16.1°F (1960) | 1.15 in (1988) |
| December 24 | 60.1°F (1982) | -18.9°F (1983) | 0.80 in (1979) |
| December 25 | 61.0°F (1982) | -20.9°F (1983) | 1.31 in (1982) |
| December 26 | 62.1°F (1982) | -11.0°F (1983) | 0.45 in (2023) |
| December 27 | 62.1°F (2019) | -5.1°F (1983) | 1.25 in (1988) |
| December 28 | 64.9°F (2008) | -6.0°F (2017) | 0.96 in (2018) |
| December 29 | 64.9°F (1984) | -8.0°F (1983) | 1.89 in (2015) |
| December 30 | 57.9°F (1965) | -9.9°F (1983) | 1.43 in (1972) |
| December 31 | 60.1°F (1965) | -15.0°F (1967) | 0.95 in (2010) |