December weather in Deer Grove, IL
The average temperature in Deer Grove in December is 27.1°F (19.1°F–35.0°F). Average precipitation: 1.99 inches. Average snowfall is 7.3 inches.
December is a winter month in Deer Grove, and is cooler than the annual average of 49.3°F. Daily temperatures swing about 15.9°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 8h 60m. For travel, December is cold.
Avg High
35.0°F
Avg Low
19.1°F
Precipitation
1.99 in
Snow
7.3 in
December records in Deer Grove
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 63.0°F (1982) | -9.0°F (1893) | 0.78 in (2023) |
| December 2 | 64.9°F (1962) | -4.0°F (1976) | 2.90 in (1982) |
| December 3 | 64.9°F (1951) | -5.1°F (1919) | 0.90 in (2010) |
| December 4 | 70.0°F (2012) | -5.1°F (1991) | 1.11 in (1973) |
| December 5 | 68.0°F (1998) | -5.1°F (2005) | 1.78 in (1909) |
| December 6 | 61.0°F (1951) | -11.0°F (2005) | 0.90 in (2004) |
| December 7 | 66.0°F (1916) | -11.0°F (1976) | 1.16 in (1994) |
| December 8 | 64.9°F (1946) | -9.0°F (1902) | 0.83 in (1966) |
| December 9 | 63.0°F (1946) | -14.1°F (1958) | 3.30 in (2003) |
| December 10 | 57.9°F (1897) | -18.0°F (1919) | 1.70 in (1971) |
| December 11 | 62.1°F (1949) | -11.0°F (1972) | 1.10 in (2007) |
| December 12 | 62.1°F (1991) | -14.1°F (2000) | 1.34 in (1946) |
| December 13 | 62.1°F (2015) | -18.9°F (1903) | 1.38 in (2011) |
| December 14 | 61.0°F (2015) | -11.0°F (1901) | 1.85 in (2015) |
| December 15 | 60.1°F (1971) | -18.0°F (1989) | 2.21 in (1971) |
| December 16 | 69.1°F (2021) | -15.0°F (1932) | 1.24 in (1921) |
| December 17 | 55.0°F (1939) | -14.1°F (1989) | 0.80 in (2002) |
| December 18 | 60.1°F (1939) | -15.0°F (1985) | 0.97 in (1895) |
| December 19 | 55.0°F (1918) | -20.9°F (1983) | 1.41 in (1957) |
| December 20 | 59.0°F (1949) | -20.0°F (1983) | 1.30 in (2006) |
| December 21 | 59.0°F (1967) | -20.9°F (1963) | 1.14 in (1949) |
| December 22 | 55.9°F (1957) | -22.0°F (1989) | 0.51 in (1923) |
| December 23 | 60.1°F (1979) | -22.0°F (1989) | 1.03 in (1932) |
| December 24 | 60.1°F (1982) | -22.0°F (1983) | 1.97 in (1979) |
| December 25 | 59.0°F (2021) | -20.0°F (1983) | 1.16 in (1965) |
| December 26 | 59.0°F (2019) | -20.9°F (1914) | 0.75 in (1988) |
| December 27 | 61.0°F (1982) | -15.0°F (1933) | 1.33 in (1942) |
| December 28 | 64.9°F (1984) | -23.1°F (1924) | 1.37 in (2008) |
| December 29 | 63.0°F (1984) | -11.9°F (1917) | 2.00 in (2015) |
| December 30 | 63.0°F (2022) | -11.9°F (1909) | 1.55 in (1971) |
| December 31 | 59.0°F (1965) | -16.1°F (1976) | 1.20 in (1978) |