Mixed Bag - July California Climate Summary
July 2015 surely defined a mixed climatological bag. Average maximum temperatures ranged from 3.6 degrees above normal (Eureka) to 2.0 below normal at San Jose, while precipitation varied from zero (most places) to 5700% of normal at San Diego!
Even across relatively short distances there were large variations in the average maxima, with San Francisco's anomaly +2.6 and San Jose -2.0, occurring across just 40 miles. Los Angeles and San Diego were likewise juxtaposed with -1.4 and +2.3 respectively. Also interesting were the average minima for the month with everyone being above normal, in a range from +5.2 (Redding) to +1.7 (Fresno).
The huge variations in the rainfall were due to the influx of subtropical moisture, including the remnants of Hurricane Dolores, that produced some locally rain the southern half of the state; and also the very low normals for the month of July.
Jan Null, CCM
Golen Gate Weather Services