December weather in Thomasboro, IL
The average temperature in Thomasboro in December is 30.9°F (22.1°F–39.8°F). Average precipitation: 2.21 inches.
December is a winter month in Thomasboro, and is cooler than the annual average of 52.3°F. Daily temperatures swing about 17.7°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 9h 9m. For travel, December is cold.
Avg High
39.8°F
Avg Low
22.1°F
Precipitation
2.21 in
Daylight
9h 9m
December records in Thomasboro
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 68.0°F (1970) | 5.0°F (1896) | 1.05 in (1977) |
| December 2 | 66.9°F (1982) | 6.1°F (2005) | 1.15 in (1967) |
| December 3 | 70.0°F (1982) | 3.9°F (1966) | 2.16 in (1967) |
| December 4 | 75.0°F (1999) | 1.0°F (1991) | 0.97 in (1947) |
| December 5 | 70.0°F (1998) | 0.0°F (2005) | 1.14 in (2021) |
| December 6 | 66.0°F (2001) | 0.0°F (1977) | 0.60 in (1957) |
| December 7 | 70.0°F (1998) | -6.0°F (2005) | 2.86 in (1966) |
| December 8 | 64.9°F (1966) | -6.0°F (1909) | 1.23 in (1972) |
| December 9 | 66.9°F (1991) | -9.9°F (1958) | 0.70 in (1907) |
| December 10 | 64.0°F (1971) | -9.0°F (1958) | 1.65 in (1971) |
| December 11 | 64.0°F (1949) | -7.1°F (1977) | 1.15 in (1985) |
| December 12 | 64.0°F (2015) | -8.0°F (1962) | 1.42 in (1903) |
| December 13 | 63.0°F (1948) | -9.9°F (1903) | 2.49 in (1901) |
| December 14 | 63.0°F (1975) | -6.0°F (1989) | 0.85 in (1971) |
| December 15 | 70.0°F (1948) | -13.0°F (1901) | 1.50 in (1975) |
| December 16 | 64.9°F (1984) | -11.9°F (1989) | 0.86 in (2023) |
| December 17 | 63.0°F (1984) | -9.0°F (1989) | 1.75 in (1895) |
| December 18 | 64.9°F (2006) | -9.9°F (1985) | 2.25 in (1895) |
| December 19 | 57.9°F (1957) | -13.0°F (1901) | 1.42 in (2008) |
| December 20 | 61.0°F (1949) | -14.1°F (1983) | 0.95 in (2012) |
| December 21 | 64.0°F (1967) | -18.9°F (1989) | 2.80 in (1949) |
| December 22 | 59.0°F (2015) | -22.0°F (1989) | 2.00 in (1984) |
| December 23 | 62.1°F (2007) | -17.0°F (1989) | 1.85 in (1988) |
| December 24 | 62.1°F (1982) | -14.1°F (1983) | 0.87 in (1945) |
| December 25 | 63.0°F (1982) | -9.0°F (1983) | 1.18 in (2009) |
| December 26 | 63.0°F (1982) | -11.0°F (1990) | 0.42 in (1911) |
| December 27 | 61.0°F (1907) | -9.9°F (2017) | 2.15 in (2015) |
| December 28 | 63.0°F (2008) | -4.0°F (1961) | 1.60 in (1990) |
| December 29 | 68.0°F (1984) | -9.9°F (1983) | 1.77 in (1990) |
| December 30 | 64.0°F (1965) | -13.0°F (1909) | 0.98 in (1908) |
| December 31 | 63.0°F (1965) | -15.0°F (1998) | 0.88 in (2006) |