December weather in Norwalk, CT
The average temperature in Norwalk in December is 35.0°F (27.3°F–42.7°F). Average precipitation: 4.44 inches. Average snowfall is 5.8 inches.
December is a winter month in Norwalk, and is cooler than the annual average of 52.6°F. Daily temperatures swing about 15.4°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 9h 3m. For travel, December is cold.
Avg High
42.7°F
Avg Low
27.3°F
Precipitation
4.44 in
Snow
5.8 in
December records in Norwalk
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 70.0°F (2001) | 6.1°F (1976) | 1.43 in (2004) |
| December 2 | 68.0°F (2006) | 9.0°F (1967) | 1.96 in (1996) |
| December 3 | 69.1°F (1998) | 3.9°F (1976) | 3.02 in (1986) |
| December 4 | 73.9°F (1998) | 3.9°F (1976) | 2.64 in (1968) |
| December 5 | 66.0°F (2001) | 10.0°F (1976) | 2.76 in (1993) |
| December 6 | 72.0°F (2001) | 8.1°F (1957) | 1.28 in (1984) |
| December 7 | 75.9°F (1998) | 3.9°F (2002) | 1.46 in (1976) |
| December 8 | 64.9°F (1966) | 7.0°F (1964) | 1.08 in (1974) |
| December 9 | 64.0°F (1974) | 8.1°F (1976) | 1.75 in (1973) |
| December 10 | 60.1°F (2015) | 6.1°F (1958) | 0.89 in (1975) |
| December 11 | 63.0°F (1971) | -2.0°F (1958) | 2.16 in (1992) |
| December 12 | 66.0°F (2015) | 3.0°F (1988) | 1.81 in (1967) |
| December 13 | 64.0°F (2015) | -0.9°F (1982) | 1.96 in (1983) |
| December 14 | 59.0°F (1990) | 1.0°F (1958) | 1.33 in (1956) |
| December 15 | 62.1°F (2015) | 0.0°F (1960) | 1.38 in (1981) |
| December 16 | 62.1°F (1971) | 7.0°F (1958) | 2.02 in (2005) |
| December 17 | 63.0°F (1984) | 7.0°F (1962) | 1.71 in (2000) |
| December 18 | 59.0°F (1984) | 1.0°F (1960) | 0.84 in (1986) |
| December 19 | 55.9°F (1967) | 1.9°F (1960) | 0.86 in (1961) |
| December 20 | 59.0°F (1957) | -2.0°F (1960) | 1.06 in (2002) |
| December 21 | 61.0°F (2018) | -9.0°F (1955) | 2.38 in (1973) |
| December 22 | 61.0°F (2013) | -4.0°F (1958) | 2.16 in (1983) |
| December 23 | 60.1°F (2013) | -0.9°F (1960) | 1.53 in (2015) |
| December 24 | 69.1°F (2015) | -4.0°F (1975) | 1.25 in (2003) |
| December 25 | 64.9°F (2015) | -2.9°F (1980) | 1.60 in (1986) |
| December 26 | 62.1°F (1982) | -13.0°F (1980) | 2.17 in (1975) |
| December 27 | 61.0°F (1973) | 3.0°F (1983) | 0.74 in (2007) |
| December 28 | 59.0°F (2015) | -2.9°F (1960) | 0.86 in (1990) |
| December 29 | 69.1°F (1984) | 3.9°F (1993) | 1.27 in (1966) |
| December 30 | 57.0°F (1984) | 3.9°F (1963) | 1.10 in (1997) |
| December 31 | 64.0°F (1965) | -6.0°F (1963) | 0.78 in (1992) |