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Water Conditions in California
DWR Bulletin 120
Bulletin 120 is a publication issued four times a year, in the second week of February, March, April, and May by the California Department of Water Resources. It contains forecasts of the volume of seasonal runoff from the state's major watersheds, and summaries of precipitation, snowpack, reservoir storage, and runoff in various regions of the State.Forecasts
- Summary of latest B120 report
- Latest update to B120 report
- Latest forecast of Water Supply Indicies
- Historical Water Supply Indicies
- The CNRFC's snowmelt forecast
Water Supply Conditions
Comparisons with previous years in this month.
The complete Bulletin 120 is now available in PDF format starting in 1990.
Years 2008 - 2000
- Regional Snow Pillow Percent Apr 1 Avg
*April 2008 contains minor errors in Feather and American WYs, use the values posted here