January weather in Plainfield, NJ
The average temperature in Plainfield in January is 32.2°F (23.8°F–40.7°F). Average precipitation: 3.79 inches. Average snowfall is 5.1 inches.
January is a winter month in Plainfield, and is cooler than the annual average of 54.8°F. Daily temperatures swing about 16.9°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 24m. For travel, January is cold.
Avg High
40.7°F
Avg Low
23.8°F
Precipitation
3.79 in
Snow
5.1 in
January records in Plainfield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 64.0°F (2005) | -0.9°F (1910) | 1.50 in (2007) |
| January 2 | 61.0°F (2000) | -7.1°F (1899) | 1.78 in (1925) |
| January 3 | 64.0°F (2000) | 1.0°F (1899) | 2.75 in (1999) |
| January 4 | 68.0°F (2000) | -4.0°F (1981) | 2.68 in (1982) |
| January 5 | 63.0°F (1950) | -13.0°F (1904) | 1.26 in (1909) |
| January 6 | 73.0°F (2007) | -9.9°F (1904) | 1.90 in (1962) |
| January 7 | 64.9°F (2008) | 5.0°F (1896) | 1.53 in (1932) |
| January 8 | 68.0°F (1998) | 1.9°F (1942) | 1.50 in (2007) |
| January 9 | 66.9°F (1930) | -2.0°F (1968) | 1.55 in (1964) |
| January 10 | 59.0°F (2000) | 1.0°F (2004) | 1.08 in (1977) |
| January 11 | 64.9°F (1975) | -2.0°F (1942) | 1.23 in (1924) |
| January 12 | 61.0°F (1913) | -2.0°F (1968) | 3.71 in (2011) |
| January 13 | 70.0°F (1932) | -8.0°F (1912) | 1.31 in (1948) |
| January 14 | 70.0°F (1932) | -9.9°F (1912) | 1.75 in (1921) |
| January 15 | 66.9°F (1932) | -2.0°F (1925) | 1.01 in (1951) |
| January 16 | 59.0°F (1995) | -2.9°F (1893) | 1.17 in (1924) |
| January 17 | 60.1°F (1990) | -8.0°F (1893) | 1.45 in (1978) |
| January 18 | 64.9°F (2006) | -7.1°F (1982) | 1.03 in (1999) |
| January 19 | 64.0°F (1951) | -6.0°F (1994) | 1.97 in (1936) |
| January 20 | 63.0°F (1951) | -2.0°F (1994) | 1.20 in (1978) |
| January 21 | 63.0°F (1959) | -7.1°F (1994) | 2.57 in (1979) |
| January 22 | 59.0°F (1916) | -8.0°F (1984) | 1.61 in (1902) |
| January 23 | 70.0°F (1906) | -2.9°F (1936) | 1.48 in (1898) |
| January 24 | 66.9°F (1967) | -4.0°F (1925) | 1.65 in (1899) |
| January 25 | 59.0°F (1938) | -4.0°F (1935) | 1.50 in (1978) |
| January 26 | 73.0°F (1950) | 0.0°F (1905) | 1.90 in (1895) |
| January 27 | 70.0°F (1916) | -2.0°F (1927) | 2.02 in (1976) |
| January 28 | 66.0°F (1916) | -8.0°F (1935) | 1.88 in (1943) |
| January 29 | 70.0°F (2002) | -9.0°F (1925) | 1.64 in (1973) |
| January 30 | 64.0°F (2006) | 0.0°F (1928) | 1.31 in (1939) |
| January 31 | 64.9°F (1947) | -4.0°F (1948) | 1.12 in (1914) |