January weather in Hackettstown, NJ
The average temperature in Hackettstown in January is °F (°F–°F). Average precipitation: 4.06 inches. Average snowfall is 7.4 inches.
January is a winter month in Hackettstown, and is cooler than the annual average of 0°F. Expect about 11 days with precipitation. Daylight averages about 9h 23m.
Avg High
°F
Avg Low
°F
Precipitation
4.06 in
Snow
7.4 in
January records in Hackettstown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 54.0°F (2012) | 17.1°F (2014) | 1.56 in (2007) |
| January 2 | 52.0°F (2012) | 18.0°F (2015) | 1.58 in (2003) |
| January 3 | 45.0°F (2011) | 12.9°F (2014) | 1.29 in (2006) |
| January 4 | 36.0°F (2015) | 1.0°F (2014) | 2.08 in (1999) |
| January 5 | 48.0°F (2015) | 3.9°F (2014) | 1.57 in (1971) |
| January 6 | 39.9°F (2013) | 10.0°F (2014) | 1.02 in (2005) |
| January 7 | 46.9°F (2014) | 1.9°F (2014) | 1.20 in (1995) |
| January 8 | 55.9°F (2012) | 3.0°F (2014) | 1.90 in (1979) |
| January 9 | 44.1°F (2013) | 7.0°F (2014) | 1.84 in (1978) |
| January 10 | 43.0°F (2013) | 14.0°F (2015) | 0.63 in (1977) |
| January 11 | 46.0°F (2013) | 10.0°F (2015) | 1.10 in (2000) |
| January 12 | 55.9°F (2014) | 15.1°F (2015) | 1.84 in (1980) |
| January 13 | 48.0°F (2013) | 19.0°F (2011) | 0.71 in (1994) |
| January 14 | 46.9°F (2013) | 10.9°F (2011) | 1.48 in (1978) |
| January 15 | 53.1°F (2013) | 12.0°F (2011) | 0.68 in (1999) |
| January 16 | 42.1°F (2014) | 14.0°F (2012) | 0.90 in (1998) |
| January 17 | 39.0°F (2015) | 12.9°F (2015) | 0.55 in (1997) |
| January 18 | 46.0°F (2012) | 12.9°F (2015) | 1.83 in (1994) |
| January 19 | 37.0°F (2012) | 18.0°F (2012) | 1.49 in (2015) |
| January 20 | 46.0°F (2013) | 18.0°F (2012) | 2.13 in (1996) |
| January 21 | 50.0°F (2013) | 21.9°F (2015) | 2.70 in (1979) |
| January 22 | 33.1°F (2015) | 3.0°F (2014) | 0.79 in (1993) |
| January 23 | 37.0°F (2015) | 1.9°F (2014) | 1.24 in (1973) |
| January 24 | 44.1°F (2012) | 3.0°F (2014) | 1.87 in (1998) |
| January 25 | 46.9°F (2012) | 3.0°F (2011) | 3.19 in (1979) |
| January 26 | 43.0°F (2012) | 10.9°F (2013) | 3.25 in (1986) |
| January 27 | 44.1°F (2012) | 12.0°F (2013) | 1.23 in (1976) |
| January 28 | 52.0°F (2012) | 12.9°F (2014) | 1.38 in (1976) |
| January 29 | 44.1°F (2012) | 10.0°F (2014) | 1.28 in (1973) |
| January 30 | 46.9°F (2013) | 3.0°F (2014) | 1.80 in (1990) |
| January 31 | 57.9°F (2013) | 3.0°F (2014) | 1.32 in (2013) |