December weather in Winslow, IL
The average temperature in Winslow in December is 24.7°F (17.7°F–31.7°F). Average precipitation: 1.91 inches. Average snowfall is 10.6 inches.
December is a winter month in Winslow, and is cooler than the annual average of 47.3°F. Daily temperatures swing about 14°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 8h 54m. For travel, December is cold.
Avg High
31.7°F
Avg Low
17.7°F
Precipitation
1.91 in
Snow
10.6 in
December records in Winslow
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 51.1°F (2017) | 7.0°F (2025) | 0.86 in (1985) |
| December 2 | 54.0°F (2009) | 3.0°F (2005) | 1.29 in (2007) |
| December 3 | 60.1°F (2012) | 3.9°F (2002) | 0.91 in (1982) |
| December 4 | 64.9°F (2012) | -2.9°F (2025) | 1.11 in (1990) |
| December 5 | 64.0°F (2001) | -7.1°F (2005) | 1.38 in (1973) |
| December 6 | 46.9°F (2001) | -9.9°F (2005) | 0.86 in (1982) |
| December 7 | 45.0°F (2004) | -11.0°F (2005) | 0.94 in (1994) |
| December 8 | 50.0°F (2024) | -8.0°F (2008) | 1.02 in (1966) |
| December 9 | 55.0°F (2023) | 0.0°F (2010) | 0.80 in (2009) |
| December 10 | 54.0°F (2020) | -7.1°F (2013) | 1.60 in (2003) |
| December 11 | 54.0°F (2020) | -8.0°F (2009) | 0.86 in (1970) |
| December 12 | 46.9°F (2006) | -4.0°F (2009) | 0.78 in (2020) |
| December 13 | 46.9°F (2021) | -0.9°F (2010) | 0.48 in (2001) |
| December 14 | 52.0°F (2006) | -9.0°F (2010) | 0.81 in (2022) |
| December 15 | 55.0°F (2021) | -8.0°F (2010) | 1.87 in (1971) |
| December 16 | 69.1°F (2021) | -2.9°F (2009) | 0.85 in (1992) |
| December 17 | 48.9°F (2018) | -4.0°F (2009) | 0.35 in (1951) |
| December 18 | 52.0°F (2002) | -6.0°F (2016) | 0.41 in (2016) |
| December 19 | 44.1°F (2018) | -11.9°F (2016) | 1.62 in (1968) |
| December 20 | 46.0°F (2017) | -8.0°F (2016) | 1.13 in (1987) |
| December 21 | 43.0°F (2003) | -9.9°F (2008) | 0.92 in (2012) |
| December 22 | 46.9°F (2019) | -11.0°F (2008) | 0.40 in (1949) |
| December 23 | 53.1°F (2019) | -13.0°F (2022) | 0.77 in (2007) |
| December 24 | 53.1°F (2020) | -11.9°F (2013) | 0.76 in (1965) |
| December 25 | 52.0°F (2019) | -14.1°F (2013) | 1.15 in (2009) |
| December 26 | 55.9°F (2019) | -8.0°F (2008) | 0.47 in (2023) |
| December 27 | 50.0°F (2003) | -11.0°F (2017) | 1.46 in (1988) |
| December 28 | 50.0°F (2003) | -9.0°F (2017) | 0.79 in (1959) |
| December 29 | 55.0°F (2019) | 1.0°F (2009) | 0.80 in (1973) |
| December 30 | 55.9°F (2002) | -14.1°F (2013) | 1.06 in (1972) |
| December 31 | 51.1°F (2006) | -17.0°F (1968) | 0.61 in (2011) |