December weather in Bartelso, IL
The average temperature in Bartelso in December is 34.8°F (26.3°F–43.3°F). Average precipitation: 3.10 inches.
December is a winter month in Bartelso, and is cooler than the annual average of 55.7°F. Daily temperatures swing about 17°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 9h 19m. For travel, December is cold.
Avg High
43.3°F
Avg Low
26.3°F
Precipitation
3.10 in
Daylight
9h 19m
December records in Bartelso
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 69.1°F (1970) | 1.0°F (1964) | 1.98 in (2006) |
| December 2 | 73.9°F (1970) | 9.0°F (1979) | 1.50 in (1967) |
| December 3 | 73.9°F (1982) | 8.1°F (1985) | 1.96 in (1982) |
| December 4 | 73.0°F (1970) | 12.0°F (2006) | 1.46 in (1982) |
| December 5 | 66.9°F (2001) | 10.0°F (2025) | 0.95 in (1977) |
| December 6 | 66.9°F (1998) | 3.9°F (1977) | 2.01 in (2014) |
| December 7 | 70.0°F (1998) | 3.9°F (1977) | 1.26 in (1971) |
| December 8 | 69.1°F (1966) | 6.1°F (2013) | 1.56 in (1966) |
| December 9 | 66.0°F (1963) | 0.0°F (1995) | 0.92 in (2009) |
| December 10 | 66.9°F (1971) | 1.0°F (1977) | 1.92 in (1971) |
| December 11 | 72.0°F (1971) | 1.0°F (1995) | 0.97 in (1985) |
| December 12 | 64.0°F (1979) | -8.0°F (1962) | 0.82 in (1967) |
| December 13 | 64.9°F (2015) | -6.0°F (1962) | 0.80 in (2009) |
| December 14 | 70.0°F (2015) | 0.0°F (1963) | 1.26 in (1975) |
| December 15 | 66.9°F (1971) | -2.9°F (1963) | 2.00 in (1987) |
| December 16 | 64.0°F (2021) | -2.9°F (1963) | 0.80 in (2000) |
| December 17 | 66.0°F (1984) | -0.9°F (1963) | 1.63 in (2001) |
| December 18 | 66.0°F (1962) | -0.9°F (1981) | 1.15 in (2021) |
| December 19 | 64.9°F (1962) | -8.0°F (1983) | 1.80 in (1995) |
| December 20 | 64.0°F (1976) | -7.1°F (1983) | 1.25 in (2012) |
| December 21 | 69.1°F (1988) | -9.0°F (1963) | 1.90 in (1967) |
| December 22 | 66.0°F (1967) | -5.1°F (1973) | 1.40 in (1967) |
| December 23 | 64.0°F (1965) | -7.1°F (1963) | 1.59 in (2003) |
| December 24 | 66.9°F (2025) | -5.1°F (2022) | 3.55 in (1982) |
| December 25 | 66.9°F (1982) | -4.0°F (2000) | 1.26 in (2009) |
| December 26 | 68.0°F (2019) | -14.1°F (1985) | 0.82 in (1975) |
| December 27 | 68.0°F (2019) | -11.9°F (1983) | 2.00 in (2015) |
| December 28 | 69.1°F (2025) | 1.0°F (2017) | 1.58 in (2015) |
| December 29 | 73.0°F (2025) | -2.9°F (1983) | 1.20 in (2003) |
| December 30 | 60.1°F (1971) | -5.1°F (1983) | 1.50 in (2000) |
| December 31 | 70.0°F (1984) | -9.0°F (1976) | 0.80 in (1998) |