December weather in Mound City, IL
The average temperature in Mound City in December is 38.4°F (30.1°F–46.7°F). Average precipitation: 4.25 inches.
December is a winter month in Mound City, and is cooler than the annual average of 58.1°F. Daily temperatures swing about 16.6°F between overnight low and afternoon high. Daylight averages about 9h 28m. For travel, December is cool.
Avg High
46.7°F
Avg Low
30.1°F
Precipitation
4.25 in
Daylight
9h 28m
December records in Mound City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 72.0°F (1982) | 19.0°F (1964) | 1.94 in (2006) |
| December 2 | 79.0°F (1982) | 10.9°F (1929) | 2.64 in (1967) |
| December 3 | 72.0°F (1982) | 6.1°F (1929) | 4.66 in (1978) |
| December 4 | 73.9°F (1916) | 15.1°F (1929) | 1.19 in (1952) |
| December 5 | 72.0°F (1998) | 10.0°F (2002) | 3.32 in (2011) |
| December 6 | 73.0°F (1998) | 9.0°F (1937) | 2.07 in (1951) |
| December 7 | 71.1°F (1916) | 12.0°F (1927) | 2.57 in (1978) |
| December 8 | 70.0°F (1918) | 0.0°F (1917) | 2.65 in (1972) |
| December 9 | 68.0°F (1939) | -7.1°F (1917) | 1.80 in (1966) |
| December 10 | 71.1°F (1918) | 0.0°F (1917) | 1.64 in (2007) |
| December 11 | 73.0°F (1931) | 6.1°F (1917) | 1.67 in (1949) |
| December 12 | 68.0°F (1929) | 0.0°F (1962) | 1.94 in (1979) |
| December 13 | 72.0°F (1927) | 1.9°F (1962) | 1.56 in (1923) |
| December 14 | 68.0°F (1971) | 6.1°F (2010) | 1.02 in (1948) |
| December 15 | 72.0°F (1933) | 3.0°F (1916) | 1.12 in (1929) |
| December 16 | 70.0°F (1924) | -4.0°F (1989) | 1.99 in (2001) |
| December 17 | 70.0°F (1908) | 6.1°F (2000) | 1.36 in (1957) |
| December 18 | 68.0°F (1924) | 7.0°F (1989) | 2.00 in (2002) |
| December 19 | 66.9°F (1976) | 5.0°F (2000) | 0.84 in (1973) |
| December 20 | 66.9°F (1949) | 5.0°F (1929) | 1.01 in (1926) |
| December 21 | 69.1°F (1949) | 6.1°F (2000) | 3.19 in (1984) |
| December 22 | 64.9°F (1933) | -9.0°F (1989) | 2.28 in (1941) |
| December 23 | 70.0°F (1931) | -9.0°F (1989) | 2.34 in (1921) |
| December 24 | 72.5°F (2025) | -2.9°F (1983) | 1.63 in (1973) |
| December 25 | 70.0°F (1982) | -4.0°F (1983) | 2.56 in (1982) |
| December 26 | 75.0°F (2021) | 6.1°F (1983) | 2.01 in (1916) |
| December 27 | 69.1°F (1971) | 1.9°F (1925) | 2.41 in (1968) |
| December 28 | 73.0°F (2008) | -2.9°F (1924) | 1.38 in (1948) |
| December 29 | 70.0°F (1984) | 3.0°F (1917) | 1.47 in (1910) |
| December 30 | 68.0°F (1951) | 1.0°F (1917) | 4.36 in (1932) |
| December 31 | 73.0°F (1951) | 1.0°F (1976) | 1.99 in (1947) |