Climatologically California temperatures were all over the map for September 2013 with huge variations. Average monthly maxima ranged from 3.5 degrees above normal at Eureka to -3.8 below at Redding, only 100 miles apart. In between san Francisco was "normal" with a 0.0 degree anomaly.
Rainfall likewise saw huge anomaly differences with positive anomalies in the north half of the state and below normal in the south. Eureka had over 5 times their normal rainfall (517%) with a monthly total of 3.05" and San Jose's 0.66' was 367% of normal.