December weather in Wood River, IL
The average temperature in Wood River in December is 35.3°F (27.1°F–43.5°F). Average precipitation: 2.59 inches.
December is a winter month in Wood River, and is cooler than the annual average of 55.7°F. Daily temperatures swing about 16.4°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 17m. For travel, December is cold.
Avg High
43.5°F
Avg Low
27.1°F
Precipitation
2.59 in
Daylight
9h 17m
December records in Wood River
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.9°F (2014) | 12.0°F (1976) | 0.95 in (1977) |
| December 2 | 73.0°F (1970) | 15.1°F (1979) | 0.80 in (1993) |
| December 3 | 73.9°F (2012) | 10.9°F (1976) | 2.71 in (1982) |
| December 4 | 72.0°F (1970) | 10.9°F (1991) | 1.65 in (1973) |
| December 5 | 91.9°F (1996) | 8.1°F (2025) | 0.76 in (1966) |
| December 6 | 68.0°F (1998) | 7.0°F (1977) | 1.13 in (2014) |
| December 7 | 70.0°F (1946) | 1.0°F (1976) | 1.70 in (2004) |
| December 8 | 70.0°F (1946) | 1.0°F (1976) | 1.58 in (1966) |
| December 9 | 68.0°F (1991) | 3.0°F (1995) | 0.90 in (1956) |
| December 10 | 64.0°F (2021) | 3.0°F (1977) | 2.73 in (1971) |
| December 11 | 69.1°F (1949) | 1.9°F (1962) | 1.85 in (1983) |
| December 12 | 66.0°F (1979) | -5.1°F (1962) | 1.50 in (2010) |
| December 13 | 70.0°F (1948) | 5.0°F (1958) | 0.71 in (1972) |
| December 14 | 64.9°F (1975) | -2.0°F (1943) | 1.38 in (1971) |
| December 15 | 72.0°F (1948) | 1.0°F (1989) | 2.06 in (1971) |
| December 16 | 66.9°F (2021) | -5.1°F (1989) | 1.60 in (1992) |
| December 17 | 66.0°F (2006) | -5.1°F (1989) | 1.13 in (2001) |
| December 18 | 64.0°F (1957) | -0.9°F (1981) | 0.92 in (1995) |
| December 19 | 60.1°F (2002) | -9.9°F (1983) | 1.38 in (1995) |
| December 20 | 66.0°F (1949) | -9.9°F (1983) | 1.10 in (2011) |
| December 21 | 64.9°F (2013) | -6.0°F (1983) | 1.31 in (1967) |
| December 22 | 64.0°F (2006) | -16.1°F (1989) | 1.45 in (1949) |
| December 23 | 62.1°F (1965) | -16.1°F (1989) | 1.70 in (1988) |
| December 24 | 68.0°F (1982) | -15.0°F (1989) | 1.30 in (2008) |
| December 25 | 70.0°F (2021) | -16.1°F (1983) | 1.94 in (2009) |
| December 26 | 68.0°F (2021) | -16.1°F (1983) | 0.70 in (1987) |
| December 27 | 66.0°F (1946) | -2.0°F (1983) | 5.55 in (2015) |
| December 28 | 70.0°F (2025) | 0.0°F (1961) | 2.73 in (2015) |
| December 29 | 73.0°F (1984) | -4.0°F (1983) | 2.50 in (2015) |
| December 30 | 68.0°F (1965) | -5.1°F (1983) | 2.06 in (1990) |
| December 31 | 68.0°F (1951) | -8.0°F (1976) | 0.70 in (1973) |