December weather in Boonton, NJ
The average temperature in Boonton in December is 34.3°F (26.2°F–42.4°F). Average precipitation: 4.36 inches.
December is a winter month in Boonton, and is cooler than the annual average of 51.8°F. Daily temperatures swing about 16.2°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 9h 4m. For travel, December is cold.
Avg High
42.4°F
Avg Low
26.2°F
Precipitation
4.36 in
Daylight
9h 4m
December records in Boonton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 77.0°F (1933) | 8.1°F (1936) | 2.96 in (2020) |
| December 2 | 71.1°F (2006) | 9.0°F (1967) | 2.93 in (1996) |
| December 3 | 66.9°F (2009) | 8.1°F (1976) | 1.56 in (1986) |
| December 4 | 66.0°F (1998) | 3.9°F (1940) | 2.52 in (1990) |
| December 5 | 71.1°F (1998) | 5.0°F (1940) | 2.25 in (1993) |
| December 6 | 68.0°F (2001) | 6.1°F (1926) | 1.62 in (1952) |
| December 7 | 70.0°F (2001) | -2.9°F (1926) | 1.64 in (1953) |
| December 8 | 72.0°F (1998) | 1.0°F (1926) | 1.98 in (2011) |
| December 9 | 63.0°F (1966) | 9.0°F (1976) | 0.95 in (1974) |
| December 10 | 64.0°F (1966) | 7.0°F (1917) | 1.95 in (1978) |
| December 11 | 69.1°F (1946) | 0.0°F (1958) | 1.90 in (2023) |
| December 12 | 68.0°F (1899) | 1.0°F (1958) | 1.60 in (2008) |
| December 13 | 69.1°F (1899) | 1.9°F (1988) | 3.38 in (1983) |
| December 14 | 68.0°F (2015) | 3.9°F (1958) | 2.40 in (1915) |
| December 15 | 64.9°F (2015) | 5.0°F (1960) | 1.28 in (1956) |
| December 16 | 63.0°F (2008) | -4.0°F (1917) | 1.20 in (2005) |
| December 17 | 61.0°F (1921) | 3.0°F (1917) | 1.33 in (1940) |
| December 18 | 62.1°F (1928) | -7.1°F (1919) | 3.57 in (2023) |
| December 19 | 61.0°F (2023) | -2.9°F (1919) | 1.54 in (1929) |
| December 20 | 60.1°F (1895) | -2.0°F (1942) | 2.25 in (1936) |
| December 21 | 69.1°F (1923) | -4.0°F (1942) | 3.36 in (1957) |
| December 22 | 64.0°F (2013) | -0.9°F (1942) | 0.88 in (1977) |
| December 23 | 66.0°F (2013) | -0.9°F (1917) | 1.63 in (1918) |
| December 24 | 68.0°F (2015) | -2.0°F (1989) | 1.60 in (1899) |
| December 25 | 66.9°F (2015) | -2.9°F (1980) | 1.61 in (2020) |
| December 26 | 69.1°F (1931) | -6.0°F (1980) | 1.31 in (1945) |
| December 27 | 64.0°F (1964) | -6.0°F (1948) | 1.75 in (1947) |
| December 28 | 61.0°F (1949) | -7.1°F (1950) | 2.52 in (2023) |
| December 29 | 62.1°F (1982) | -6.0°F (1933) | 1.66 in (1966) |
| December 30 | 68.0°F (1984) | -20.9°F (1917) | 1.66 in (1948) |
| December 31 | 66.0°F (1932) | -18.9°F (1917) | 2.96 in (1948) |