Hackettstown, NJ
Climate overview — based on NOAA 1991-2020 normals from POTTERSVILLE 2 NNW, NJ US.
Year-round temperatures (°F)
Avg high
Avg low
Best time to visit Hackettstown
Full guide →Climate change signal
All-time records →27 of 366 (7.4%) of Hackettstown's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1960s | 0 | |
| 1970s | 0 | |
| 1980s | 0 | |
| 1990s | 0 | |
| 2000s | 0 | |
| 2010s | 366 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | °F | °F | °F | 4.06 in | 7.4 in | 11 |
| February | °F | °F | °F | 3.03 in | 10.3 in | 8 |
| March | °F | °F | °F | 4.32 in | 5.8 in | 10 |
| April | °F | °F | °F | 4.16 in | 0.7 in | 10 |
| May | °F | °F | °F | 4.40 in | — | 12 |
| June | °F | °F | °F | 5.38 in | — | 12 |
| July | °F | °F | °F | 5.20 in | — | 11 |
| August | °F | °F | °F | 4.77 in | — | 10 |
| September | °F | °F | °F | 4.94 in | — | 9 |
| October | °F | °F | °F | 4.72 in | 0.3 in | 9 |
| November | °F | °F | °F | 3.77 in | 0.3 in | 9 |
| December | °F | °F | °F | 4.74 in | 4.8 in | 10 |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when