December weather in Basco, IL
The average temperature in Basco in December is 31.3°F (23.6°F–39.1°F). Average precipitation: 1.89 inches. Average snowfall is 5.2 inches.
December is a winter month in Basco, and is cooler than the annual average of 52.8°F. Daily temperatures swing about 15.5°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 8m. For travel, December is cold.
Avg High
39.1°F
Avg Low
23.6°F
Precipitation
1.89 in
Snow
5.2 in
December records in Basco
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 68.0°F (2006) | 15.1°F (2002) | 1.65 in (1985) |
| December 2 | 63.0°F (1998) | 7.0°F (2005) | 2.90 in (1982) |
| December 3 | 66.0°F (1995) | 1.9°F (2006) | 0.89 in (1982) |
| December 4 | 73.0°F (2012) | 3.0°F (2006) | 1.32 in (1973) |
| December 5 | 73.9°F (1998) | -0.9°F (2005) | 1.55 in (1994) |
| December 6 | 68.0°F (2001) | 3.0°F (2005) | 0.74 in (2004) |
| December 7 | 55.9°F (2001) | -6.0°F (2005) | 2.02 in (1980) |
| December 8 | 64.0°F (2023) | -5.1°F (2005) | 1.07 in (1980) |
| December 9 | 62.1°F (2023) | -5.1°F (1995) | 0.64 in (1999) |
| December 10 | 60.1°F (2020) | -5.1°F (1995) | 2.80 in (2003) |
| December 11 | 61.0°F (1996) | 3.9°F (2009) | 0.75 in (1983) |
| December 12 | 55.9°F (2015) | -6.0°F (2000) | 1.32 in (1972) |
| December 13 | 66.9°F (2015) | -5.1°F (2000) | 1.25 in (1984) |
| December 14 | 66.9°F (2015) | -7.1°F (2025) | 1.43 in (2015) |
| December 15 | 64.0°F (2006) | -2.9°F (2025) | 2.01 in (1971) |
| December 16 | 75.0°F (2021) | 3.9°F (2008) | 0.48 in (1970) |
| December 17 | 63.0°F (2006) | -2.0°F (2000) | 0.69 in (1967) |
| December 18 | 57.9°F (2002) | -5.1°F (2016) | 0.85 in (1957) |
| December 19 | 64.0°F (2002) | -5.1°F (2016) | 1.06 in (2008) |
| December 20 | 66.0°F (1997) | -2.9°F (2000) | 0.59 in (1987) |
| December 21 | 54.0°F (2015) | -4.0°F (2008) | 0.78 in (2006) |
| December 22 | 57.0°F (1997) | -8.0°F (2000) | 1.50 in (1949) |
| December 23 | 55.0°F (2019) | -6.0°F (2000) | 0.52 in (2007) |
| December 24 | 62.1°F (2015) | -5.1°F (2000) | 1.60 in (1965) |
| December 25 | 69.1°F (2021) | -9.9°F (2000) | 0.95 in (1957) |
| December 26 | 64.9°F (2019) | 0.0°F (2000) | 0.68 in (2016) |
| December 27 | 62.1°F (2008) | -6.0°F (2017) | 1.08 in (2008) |
| December 28 | 57.9°F (2008) | -2.9°F (2017) | 1.23 in (2008) |
| December 29 | 59.0°F (2019) | 3.0°F (2009) | 1.16 in (2015) |
| December 30 | 68.0°F (2022) | -9.9°F (1998) | 0.99 in (1971) |
| December 31 | 64.0°F (2002) | -9.0°F (1998) | 1.04 in (1978) |