A bunch of it, from the California Water Blog, and Sacramento is in pretty good shape.
The California Department of Water Resources does a great job assembling data that can give insights on water conditions during the ongoing drought. They update the information daily (which can be addictive for some of us) on the California Data Exchange Center website.
Here are highlights of water conditions as of January 4:
A drought as bad as last year seems unlikely, but remains a possibility, especially for the Tulare Basin in the southern Central Valley. Rain has arrived, but the drought has not yet left. Fortunately, we have three months left in the wet season. We won’t have much to say for sure about the 2015 water outlook until March, no matter how eager we want to know. For the Sacramento and San Joaquin valleys, El Nino — the periodic shift of warm water from the Western to the Eastern Pacific — is a poor predictor of runoff in northern and central California.
The December storms helped, but surface water storage remains about 5 million acre feet below average for this time of year. The Sacramento area is in much better shape, but most other areas are worse off or about the same as they were a year ago.
Retrieved January 6, 2015 from http://californiawaterblog.com/2015/01/05/the-2015-drought-so-far/