The most pleasant months of the year for the 93042 zip code are September, August and July. In the 93042 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. September is the hottest month for the 93042 zip code with an average high temperature of 74.7°, which ranks it as one of the coolest places in California. Any measurable snowfall is a rare occurance in the 93042 zip code. There are few days during the summer when the humidity becomes unpleasant.