December weather in Tiskilwa, IL
The average temperature in Tiskilwa in December is 27.5°F (19.6°F–35.4°F). Average precipitation: 2.24 inches. Average snowfall is 6.8 inches.
December is a winter month in Tiskilwa, and is cooler than the annual average of 49.7°F. Daily temperatures swing about 15.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 2m. For travel, December is cold.
Avg High
35.4°F
Avg Low
19.6°F
Precipitation
2.24 in
Snow
6.8 in
December records in Tiskilwa
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 59.0°F (2012) | 10.9°F (2005) | 1.93 in (2006) |
| December 2 | 61.0°F (1998) | 7.0°F (2005) | 1.05 in (2018) |
| December 3 | 70.0°F (2012) | 1.0°F (1991) | 0.70 in (1990) |
| December 4 | 68.0°F (1998) | -4.0°F (1991) | 1.10 in (1999) |
| December 5 | 68.0°F (2001) | 1.0°F (2005) | 0.98 in (1999) |
| December 6 | 57.9°F (1998) | -2.0°F (2005) | 1.78 in (1998) |
| December 7 | 48.9°F (1991) | -6.0°F (2005) | 1.01 in (1987) |
| December 8 | 64.0°F (1991) | -2.9°F (1995) | 0.93 in (2009) |
| December 9 | 59.0°F (2023) | -2.9°F (1995) | 1.18 in (2003) |
| December 10 | 54.0°F (2020) | -7.1°F (2013) | 1.68 in (2003) |
| December 11 | 60.1°F (2021) | 3.9°F (1989) | 0.97 in (2000) |
| December 12 | 62.1°F (1991) | -6.0°F (2000) | 0.73 in (2020) |
| December 13 | 61.0°F (2015) | -7.1°F (2000) | 0.43 in (1993) |
| December 14 | 61.0°F (2015) | -4.0°F (1989) | 1.94 in (2015) |
| December 15 | 61.0°F (2021) | -15.0°F (1989) | 1.43 in (1992) |
| December 16 | 71.1°F (2021) | -9.0°F (1989) | 0.40 in (2008) |
| December 17 | 54.0°F (2015) | -0.9°F (2000) | 0.30 in (1993) |
| December 18 | 57.9°F (2002) | -6.0°F (2016) | 1.34 in (2002) |
| December 19 | 55.9°F (1988) | -13.0°F (2016) | 1.04 in (1987) |
| December 20 | 54.0°F (1988) | -11.0°F (2016) | 0.74 in (2012) |
| December 21 | 51.1°F (2015) | -18.0°F (1989) | 0.67 in (2006) |
| December 22 | 55.0°F (2015) | -18.0°F (1989) | 0.43 in (2013) |
| December 23 | 53.1°F (2019) | -18.0°F (1989) | 0.82 in (2009) |
| December 24 | 59.0°F (2020) | -8.0°F (2000) | 1.27 in (2009) |
| December 25 | 60.1°F (2021) | -13.0°F (2000) | 0.29 in (2009) |
| December 26 | 61.0°F (2019) | -6.0°F (1990) | 0.63 in (1988) |
| December 27 | 60.1°F (2008) | -9.9°F (2017) | 0.87 in (2008) |
| December 28 | 55.0°F (2018) | -9.9°F (2017) | 0.65 in (1990) |
| December 29 | 60.1°F (2019) | 1.9°F (2017) | 1.38 in (2019) |
| December 30 | 66.0°F (2022) | -4.0°F (1998) | 1.20 in (1992) |
| December 31 | 55.9°F (2004) | -6.0°F (2017) | 0.60 in (2010) |