December weather in South Barrington, IL
The average temperature in South Barrington in December is 27.0°F (19.7°F–34.2°F). Average precipitation: 2.19 inches. Average snowfall is 9.6 inches.
December is a winter month in South Barrington, and is cooler than the annual average of 48°F. Daily temperatures swing about 14.5°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 8h 57m. For travel, December is cold.
Avg High
34.2°F
Avg Low
19.7°F
Precipitation
2.19 in
Snow
9.6 in
December records in South Barrington
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.0°F (1962) | -2.9°F (1976) | 0.82 in (2006) |
| December 2 | 64.0°F (1982) | -2.9°F (1976) | 1.56 in (2018) |
| December 3 | 66.0°F (1982) | -2.9°F (1976) | 2.10 in (1982) |
| December 4 | 66.9°F (2012) | 0.0°F (1991) | 0.43 in (1964) |
| December 5 | 62.1°F (2017) | -0.9°F (2005) | 1.33 in (1999) |
| December 6 | 64.9°F (2001) | -0.9°F (2007) | 0.41 in (1966) |
| December 7 | 57.9°F (1980) | -6.0°F (2005) | 1.21 in (1998) |
| December 8 | 59.0°F (1966) | -6.0°F (1976) | 0.72 in (1980) |
| December 9 | 59.0°F (1991) | -7.1°F (1977) | 0.54 in (2008) |
| December 10 | 52.0°F (1990) | -11.0°F (1978) | 2.00 in (1971) |
| December 11 | 55.9°F (1965) | -9.9°F (1978) | 0.95 in (2021) |
| December 12 | 55.9°F (1965) | -9.9°F (1962) | 1.02 in (2020) |
| December 13 | 60.1°F (2015) | -9.9°F (2000) | 0.58 in (2001) |
| December 14 | 60.1°F (2015) | -9.0°F (1985) | 1.20 in (2015) |
| December 15 | 59.0°F (1971) | -13.0°F (1989) | 1.80 in (1987) |
| December 16 | 63.0°F (2021) | -8.0°F (1963) | 0.40 in (2012) |
| December 17 | 59.0°F (1984) | -4.0°F (1964) | 0.50 in (2011) |
| December 18 | 54.0°F (1977) | -9.0°F (1985) | 0.32 in (1963) |
| December 19 | 54.0°F (2002) | -16.1°F (1983) | 0.77 in (2008) |
| December 20 | 53.1°F (1988) | -17.0°F (1963) | 0.92 in (2012) |
| December 21 | 60.1°F (1967) | -17.0°F (1989) | 0.63 in (2012) |
| December 22 | 57.0°F (1967) | -17.0°F (1989) | 1.70 in (2006) |
| December 23 | 52.0°F (1965) | -16.1°F (1989) | 0.51 in (2014) |
| December 24 | 57.9°F (1982) | -20.0°F (1983) | 1.25 in (1965) |
| December 25 | 60.1°F (1982) | -18.0°F (1983) | 1.13 in (2009) |
| December 26 | 60.1°F (1982) | -11.9°F (1983) | 0.20 in (2009) |
| December 27 | 59.0°F (2019) | -9.9°F (2017) | 0.54 in (1968) |
| December 28 | 60.1°F (1982) | -8.0°F (2017) | 0.91 in (2008) |
| December 29 | 63.0°F (1984) | -11.0°F (1976) | 1.56 in (2015) |
| December 30 | 55.9°F (2022) | -13.0°F (1963) | 1.18 in (1971) |
| December 31 | 57.9°F (1965) | -16.1°F (1963) | 0.28 in (2005) |