December weather in Passaic, NJ
The average temperature in Passaic in December is 37.9°F (30.8°F–44.9°F). Average precipitation: 4.10 inches.
December is a winter month in Passaic, and is cooler than the annual average of 55.4°F. Daily temperatures swing about 14.1°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 9h 5m. For travel, December is cold.
Avg High
44.9°F
Avg Low
30.8°F
Precipitation
4.10 in
Daylight
9h 5m
December records in Passaic
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 73.0°F (2006) | 14.0°F (1976) | 1.55 in (1981) |
| December 2 | 68.0°F (1970) | 17.1°F (1989) | 2.02 in (1974) |
| December 3 | 71.1°F (1998) | 10.0°F (1976) | 1.42 in (1991) |
| December 4 | 75.0°F (1998) | 15.1°F (1989) | 1.80 in (1990) |
| December 5 | 75.9°F (2001) | 17.1°F (1976) | 1.46 in (1993) |
| December 6 | 73.9°F (2001) | 19.9°F (2002) | 1.26 in (1996) |
| December 7 | 77.0°F (1998) | 12.9°F (2002) | 1.88 in (2011) |
| December 8 | 63.0°F (1980) | 15.1°F (1970) | 1.31 in (1976) |
| December 9 | 64.0°F (1991) | 15.1°F (1976) | 2.03 in (2014) |
| December 10 | 64.9°F (2008) | 14.0°F (1982) | 1.16 in (1978) |
| December 11 | 68.0°F (2021) | 12.0°F (1988) | 3.47 in (1992) |
| December 12 | 64.0°F (1979) | 5.0°F (1988) | 1.31 in (2010) |
| December 13 | 68.0°F (2015) | 10.0°F (1995) | 3.54 in (1983) |
| December 14 | 64.9°F (2015) | 10.9°F (1976) | 1.27 in (1996) |
| December 15 | 66.9°F (2008) | 10.9°F (2005) | 2.30 in (1981) |
| December 16 | 64.0°F (1971) | 16.2°F (2016) | 1.48 in (2005) |
| December 17 | 64.0°F (2000) | 11.1°F (2023) | 1.56 in (1974) |
| December 18 | 64.0°F (2023) | 12.0°F (1988) | 2.82 in (2023) |
| December 19 | 59.0°F (2025) | 8.1°F (1989) | 1.21 in (2025) |
| December 20 | 59.0°F (1999) | 12.0°F (1980) | 0.87 in (1999) |
| December 21 | 63.0°F (2013) | 10.0°F (1983) | 1.73 in (2018) |
| December 22 | 72.0°F (2013) | 7.0°F (1989) | 1.90 in (1983) |
| December 23 | 66.0°F (1990) | 6.1°F (1989) | 1.83 in (2022) |
| December 24 | 73.9°F (2015) | 3.9°F (1983) | 1.69 in (2003) |
| December 25 | 64.0°F (2015) | -2.9°F (1980) | 1.26 in (1978) |
| December 26 | 63.0°F (1982) | -2.9°F (1980) | 1.52 in (2009) |
| December 27 | 62.1°F (1973) | 7.0°F (1980) | 1.70 in (1975) |
| December 28 | 64.9°F (2008) | 11.1°F (2017) | 1.49 in (2023) |
| December 29 | 70.0°F (1984) | 11.1°F (2017) | 1.09 in (2013) |
| December 30 | 62.1°F (1984) | 9.0°F (1976) | 0.73 in (2000) |
| December 31 | 60.1°F (1992) | 9.1°F (2017) | 1.15 in (2018) |