The most pleasant months of the year for the 95430 zip code are August, July and September. In the 95430 zip code, there are 6 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for the 95430 zip code with an average high temperature of 77.7°, which ranks it as cooler than most places in California. Any measurable snowfall is a rare occurance in the 95430 zip code. There are few days during the summer when the humidity becomes unpleasant.