The most pleasant months of the year for the 07820 zip code are June, August and July. In the 07820 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for the 07820 zip code with an average high temperature of 82.1°, which ranks it as one of the coolest places in New Jersey. January is the snowiest month in the 07820 zip code with 10.6 inches of snow, and 6 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.