Precipitation Percentiles: Monitoring drought in California and Nevada The link above provides graphics showing precipitation percentiles over the last 10 years or since 1900 as a function of timescale for California and Nevada climate divisions. |
Percent of Normal Precipitation (from Western Regional Climate Center> |
Last 12 Months![]() |
Last 24 Months![]() |
Last 36 Months![]() |
Precipitation Deficits (from NOAA Climate Prediction Center) |
Sacramento![]() |
San Francisco![]() |
San Diego![]() |
Precipitation Percentiles: Water Year to-date (from CW3E Researcher David Pierce) |
Western U.S.![]() |
Northern Cal![]() |
Southern Cal![]() |
Cumulative Water-Year Precipitation (from CA Dept Water Resources) |
No. Sierra 8-stn Index |
So. Sierra 5-stn Index |
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California Snow Water Content relative to April 1 Average(from CA Dept Water Resources) |
Comparison to Historical Years![]() |
Statewide summary |
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(Updated Mar 21, 2014) Likelihood of California Drought ending by Oct 2014 (from CW3E Researcher, Mike Dettinger) |
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Climate Division 1 Climate Division 2 Climate Division 3 Climate Division 4 |
Climate Division 5 Climate Division 6 Climate Division 7 Climate Division Map |