Monthly El Niño Analysis: Beware December!
To date, much of the retrospective analysis of California rainfall during El Niño rainfall seasons has been looking at the teleconnections between seasonal totals and the strength of the El Niño events. This analysis focused on monthly rainfall anomalies across California; and in doing so the biggest takeaway was that December during both strong and very strong events was historically drier than normal across most of the state north of the Tehachapis.
For a complete month-by-month and station analyses go to http://ggweather.com/enso/monthly/ .
Other El Niño resources can be found at http://ggweather.com/enso.htm .
Jan Null, CCM
Golden Gate Weather Services