December weather in Plainfield, NJ
The average temperature in Plainfield in December is 37.5°F (29.4°F–45.7°F). Average precipitation: 4.19 inches. Average snowfall is 2.4 inches.
December is a winter month in Plainfield, and is cooler than the annual average of 54.8°F. Daily temperatures swing about 16.3°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 6m. For travel, December is cool.
Avg High
45.7°F
Avg Low
29.4°F
Precipitation
4.19 in
Snow
2.4 in
December records in Plainfield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 72.0°F (2006) | 10.9°F (1936) | 1.66 in (1920) |
| December 2 | 64.9°F (2006) | 12.9°F (1967) | 1.70 in (1936) |
| December 3 | 68.0°F (1998) | 8.1°F (1976) | 1.45 in (1967) |
| December 4 | 73.9°F (1998) | 8.1°F (1940) | 1.90 in (1968) |
| December 5 | 73.0°F (2001) | 10.0°F (1926) | 2.00 in (1993) |
| December 6 | 73.0°F (2001) | 10.0°F (1901) | 1.22 in (1984) |
| December 7 | 73.9°F (1998) | -4.0°F (1926) | 2.24 in (2011) |
| December 8 | 64.9°F (1951) | 9.0°F (1906) | 1.72 in (1978) |
| December 9 | 64.9°F (1966) | 7.0°F (1902) | 1.54 in (1973) |
| December 10 | 71.1°F (1946) | -0.9°F (1910) | 0.97 in (1953) |
| December 11 | 63.0°F (1899) | 3.0°F (1958) | 2.30 in (1992) |
| December 12 | 64.0°F (1899) | 3.0°F (1988) | 2.00 in (1967) |
| December 13 | 63.0°F (1923) | 7.0°F (1960) | 2.98 in (1909) |
| December 14 | 64.9°F (1901) | 6.1°F (1898) | 1.98 in (1897) |
| December 15 | 62.1°F (2001) | 3.9°F (1904) | 1.20 in (1916) |
| December 16 | 64.0°F (1971) | 7.0°F (1943) | 1.80 in (1902) |
| December 17 | 66.9°F (2000) | 1.9°F (1910) | 2.01 in (2000) |
| December 18 | 95.0°F (1935) | -6.0°F (1919) | 1.53 in (1929) |
| December 19 | 61.0°F (1931) | 0.0°F (1919) | 1.44 in (1948) |
| December 20 | 64.0°F (1895) | 0.0°F (1942) | 1.64 in (1936) |
| December 21 | 66.0°F (1923) | -2.0°F (1942) | 2.45 in (1973) |
| December 22 | 62.1°F (1949) | 1.0°F (1904) | 2.12 in (1983) |
| December 23 | 64.9°F (1990) | 0.0°F (1960) | 1.83 in (1913) |
| December 24 | 63.0°F (1990) | 1.0°F (1989) | 1.42 in (1899) |
| December 25 | 66.9°F (1964) | -0.9°F (1980) | 1.48 in (2002) |
| December 26 | 66.0°F (1964) | -2.9°F (1980) | 2.31 in (1947) |
| December 27 | 63.0°F (1949) | -2.0°F (1948) | 1.44 in (1930) |
| December 28 | 64.0°F (1982) | -6.0°F (1933) | 1.48 in (1942) |
| December 29 | 72.0°F (1984) | -4.0°F (1933) | 2.62 in (1901) |
| December 30 | 57.0°F (1895) | -14.1°F (1917) | 2.35 in (1948) |
| December 31 | 62.1°F (1895) | 0.0°F (1963) | 1.54 in (1948) |