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Hackettstown, NJ Climate

1991 to 2020 normals at Andover Aeroflex AP, 12 mi from the center of Hackettstown, elevation 583 ft.

Average weather by month

Select a month for daily normals and last year's weather

MonthRangeHighLowPrecip.Snow
January36°19°3.27 in--
February39°20°2.83 in--
March48°28°4.07 in--
April61°38°3.78 in--
May71°48°3.83 in--
June79°57°4.54 in--
July84°62°5.06 in--
August82°60°4.85 in--
September74°52°4.32 in--
October63°42°4.64 in--
November52°32°3.43 in--
December41°25°4.18 in--
Year61°48.80 in--

Frequently asked questions

What is the hottest month in Hackettstown, NJ?
July is the warmest month, with a normal high of 84°F at Andover Aeroflex AP.
What is the coldest month in Hackettstown, NJ?
January is the coldest month, with a normal low of 19°F.
What is the wettest month in Hackettstown, NJ?
July has the most precipitation on average, about 5.06 inches.