The most pleasant months of the year for Freeport are October, May and April. In Freeport, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Freeport with an average high temperature of 92.8°, which ranks it as warmer than most places in California. Any measurable snowfall is a rare occurance in Freeport. There are few days during the summer when the humidity becomes unpleasant.