The most pleasant months of the year for the 96857 zip code are April, March and December. In the 96857 zip code, there are 12 comfortable months with high temperatures in the range of 70-85°. September is the hottest month for the 96857 zip code with an average high temperature of 84.0°, which ranks it as cooler than most places in Hawaii. Any measurable snowfall is a rare occurance in the 96857 zip code. If the trade winds stop blowing (which is rare), a summer day can be unpleasantly humid.