Historical weather data, all-time temperature records, and monthly climate averages for Bayonne, NJ. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Bayonne splits the difference between winter and spring — expect a high around 56° and a low near 38°, with about a 1-in-3 chance of rain. The date has swung wildly over 175 years of records, from a brutal 21° in 1874 to a shirt-sleeve 83° back in 1985.
Bayonne's weather has genuine teeth at both ends of the thermometer — 108° in July 2011 and -14° in February 1934 represent a 122-degree spread over the historical record. The single wildest day on the books is August 5, 1843, when 15 inches of rain fell, and a day-after-Christmas blizzard in 1947 buried the city under 25.9 inches of snow.
Summer is peak Bayonne, with average highs climbing to 85° in mid-July and the warmest week of the year landing between July 16 and 22. If you're cold-averse, avoid early January, when highs average just 37°. July is also the wettest stretch of the year, averaging over an inch of rain in a single week — classic humid mid-Atlantic summer.