December weather in Morrison, IL
The average temperature in Morrison in December is 26.4°F (18.3°F–34.5°F). Average precipitation: 2.02 inches. Average snowfall is 6.3 inches.
December is a winter month in Morrison, and is cooler than the annual average of 48.3°F. Daily temperatures swing about 16.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 8h 58m. For travel, December is cold.
Avg High
34.5°F
Avg Low
18.3°F
Precipitation
2.02 in
Snow
6.3 in
December records in Morrison
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 61.0°F (1962) | -0.9°F (1976) | 1.30 in (1985) |
| December 2 | 64.0°F (1962) | -2.9°F (1942) | 0.95 in (2018) |
| December 3 | 68.0°F (1970) | -7.1°F (1940) | 1.45 in (1982) |
| December 4 | 69.1°F (1998) | -2.9°F (1991) | 1.15 in (1973) |
| December 5 | 70.0°F (1998) | -4.0°F (2025) | 1.20 in (1909) |
| December 6 | 63.0°F (1975) | -8.0°F (1964) | 0.53 in (1919) |
| December 7 | 64.9°F (1916) | -8.0°F (2005) | 1.10 in (1998) |
| December 8 | 77.0°F (1937) | -13.0°F (1902) | 1.04 in (1980) |
| December 9 | 64.0°F (1991) | -17.0°F (1958) | 2.20 in (2003) |
| December 10 | 59.0°F (1911) | -20.0°F (1919) | 0.96 in (1911) |
| December 11 | 63.0°F (1949) | -18.9°F (1972) | 1.08 in (2021) |
| December 12 | 57.9°F (1949) | -9.9°F (1976) | 1.00 in (1901) |
| December 13 | 63.0°F (1991) | -22.0°F (1903) | 0.98 in (1928) |
| December 14 | 60.1°F (1975) | -14.1°F (1904) | 2.03 in (2015) |
| December 15 | 59.0°F (1975) | -18.9°F (1917) | 1.10 in (1987) |
| December 16 | 73.0°F (2021) | -16.1°F (1951) | 1.50 in (1921) |
| December 17 | 57.9°F (1939) | -11.9°F (1914) | 1.12 in (1921) |
| December 18 | 62.1°F (1939) | -13.0°F (1909) | 1.28 in (1957) |
| December 19 | 57.9°F (1918) | -18.9°F (1983) | 1.07 in (1968) |
| December 20 | 57.0°F (1988) | -17.0°F (1985) | 1.37 in (1987) |
| December 21 | 59.0°F (1931) | -25.1°F (1963) | 1.46 in (2006) |
| December 22 | 55.0°F (1957) | -18.0°F (1963) | 0.55 in (1923) |
| December 23 | 57.9°F (1941) | -23.1°F (1989) | 1.12 in (1979) |
| December 24 | 60.1°F (2020) | -22.0°F (1989) | 1.93 in (1965) |
| December 25 | 57.9°F (1982) | -20.9°F (1983) | 1.37 in (1979) |
| December 26 | 57.9°F (2019) | -27.9°F (1914) | 0.78 in (1942) |
| December 27 | 59.0°F (1946) | -20.0°F (1950) | 2.50 in (1942) |
| December 28 | 60.1°F (1982) | -20.0°F (1924) | 1.05 in (1927) |
| December 29 | 64.0°F (1984) | -13.0°F (1917) | 1.06 in (2019) |
| December 30 | 62.1°F (2022) | -15.0°F (1909) | 1.14 in (1971) |
| December 31 | 59.0°F (1965) | -20.9°F (1914) | 0.64 in (1992) |