Historical weather data, all-time temperature records, and monthly climate averages for Waldwick, NJ. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Waldwick lands right in that transitional sweet spot, with historical highs averaging 57° and lows around 39°. The date has a 58-degree range in its record books — from a bitter 23° in 1995 to a shirt-sleeve 81° back in 2010. Rain is possible but unlikely, with only a 27% historical chance of precipitation and essentially no shot at snow.
Waldwick runs the full spectrum of East Coast extremes, from a scorching 104° on July 22, 2011 to a brutal -7° on January 22, 1984 — a swing of 111 degrees. The wettest single day on record dropped a remarkable 8.18 inches in September 1999, and the snowiest brought 16 inches in one February 1978 storm.
Summer is the clear headliner here, with late July highs averaging 88° and late July also being the wettest stretch of the year at over an inch of precip per week. If you're chasing cool and dry, mid-January is your opposite — average highs of just 37°. Spring and fall offer the most comfortable windows, with April climbing into the 60s and October holding steady there on the way back down.