The most pleasant months of the year for the 03291 zip code are August, June and July. In the 03291 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for the 03291 zip code with an average high temperature of 81.1°, which ranks it as about average compared to other places in New Hampshire. January is the snowiest month in the 03291 zip code with 16.0 inches of snow, and 6 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.