Bergenfield's winters are cold and variable, with temperatures often dropping below freezing but occasionally rising into the mid-teens. Spring is a gradual warming trend, with March and April seeing significant increases in temperature before leveling off in May. Summers are warm to hot, with July and August being the warmest months, while September brings a gentle cooling before autumn's chill sets in. Autumn itself is mild, with temperatures rarely dropping below freezing until November, when they begin to plunge again.