December weather in Naperville, IL
The average temperature in Naperville in December is 30.2°F (22.6°F–37.7°F). Average precipitation: 2.22 inches. Average snowfall is 4.2 inches.
December is a winter month in Naperville, and is cooler than the annual average of 51.1°F. Daily temperatures swing about 15.1°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 8h 59m. For travel, December is cold.
Avg High
37.7°F
Avg Low
22.6°F
Precipitation
2.22 in
Snow
4.2 in
December records in Naperville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.0°F (1970) | 9.0°F (1944) | 1.20 in (2006) |
| December 2 | 68.0°F (1982) | -2.0°F (1942) | 0.54 in (1953) |
| December 3 | 68.0°F (1998) | -9.9°F (1940) | 3.04 in (1982) |
| December 4 | 66.9°F (1998) | 0.0°F (1991) | 0.98 in (1947) |
| December 5 | 70.0°F (2001) | 3.0°F (1976) | 1.62 in (1999) |
| December 6 | 66.0°F (2001) | -2.0°F (1977) | 0.65 in (1950) |
| December 7 | 62.1°F (1951) | -4.0°F (1936) | 1.20 in (1994) |
| December 8 | 64.9°F (1945) | -0.9°F (2005) | 0.95 in (1987) |
| December 9 | 61.0°F (1946) | -15.0°F (1958) | 0.75 in (1951) |
| December 10 | 60.1°F (1949) | -8.0°F (1958) | 1.90 in (1971) |
| December 11 | 60.1°F (1949) | -16.1°F (1972) | 1.22 in (1949) |
| December 12 | 59.0°F (1991) | -9.0°F (1962) | 1.30 in (1946) |
| December 13 | 61.0°F (1975) | -8.0°F (2000) | 0.89 in (1973) |
| December 14 | 62.1°F (1975) | -6.0°F (1985) | 1.18 in (1975) |
| December 15 | 61.0°F (1971) | -11.0°F (1951) | 1.91 in (1971) |
| December 16 | 62.1°F (1984) | -15.0°F (1951) | 0.90 in (1940) |
| December 17 | 57.9°F (1984) | -9.9°F (1951) | 0.75 in (1895) |
| December 18 | 55.9°F (1939) | -11.0°F (1945) | 1.06 in (1895) |
| December 19 | 64.0°F (2002) | -15.0°F (1983) | 2.06 in (1895) |
| December 20 | 55.9°F (1988) | -11.9°F (1963) | 1.00 in (1895) |
| December 21 | 60.1°F (1967) | -15.0°F (1989) | 1.08 in (1967) |
| December 22 | 64.0°F (1957) | -16.1°F (1989) | 1.19 in (2006) |
| December 23 | 59.0°F (1982) | -17.0°F (1960) | 0.94 in (1961) |
| December 24 | 60.1°F (1982) | -20.9°F (1983) | 1.20 in (1979) |
| December 25 | 62.1°F (1982) | -14.1°F (1983) | 1.41 in (1982) |
| December 26 | 54.0°F (1994) | -13.0°F (2000) | 0.77 in (1936) |
| December 27 | 57.9°F (1940) | -16.1°F (1950) | 1.38 in (1942) |
| December 28 | 64.9°F (1984) | -6.0°F (1961) | 0.63 in (1968) |
| December 29 | 61.0°F (1984) | -9.0°F (1976) | 1.34 in (1948) |
| December 30 | 59.0°F (1936) | -9.9°F (1983) | 1.36 in (1936) |
| December 31 | 63.0°F (1965) | -13.0°F (1976) | 1.67 in (1992) |