Climate Data and Information for California

Monthly Climate Summaries

• March 2008 (PDF: 171K)
• February 2008 (PDF: 177K)
• January 2008 (PDF: 198K)
• December 2007 (PDF: 49K)
• November 2007 (PDF: 51K)
• October 2007 (PDF: 60K)
• September 2007 (PDF: 57K)
• August 2007 (PDF: 65K)
• July 2007 (PDF: 64K)
• June 2007 (PDF: 51K)
• May 2007 (PDF: 51K)
• April 2007 (PDF: 576K)
• March 2007 (PDF: 50K)
• February 2007 (PDF: 537K)
• January 2007 (PDF: 701K)
• December 2006 (PDF: 44K)
• November 2006 (PDF: 44K)
• October 2006 (PDF: 43K)
• September 2006 (PDF: 39K)
• August 2006 (PDF: 42K)
• July 2006 (PDF: 57K)
• June 2006 (PDF: 41K)
• May 2006 (PDF: 43K)
• April 2006 (PDF: 50K)
• March 2006 (PDF: 47K)
• February 2006 (PDF: 47K)
• January 2006 (PDF: 42K)
• December 2005 (PDF: 51K)

NWS Weather Forecast Office (WFO) Summaries

• September 2006 (PDF: 22K)
• October 2006 (PDF: 18K)
• November 2006 (PDF: 19K)
• December 2006 (PDF: 16K)
• January 2007 (PDF: 19K)
• February 2007 (PDF: 19K)
• March 2007 (PDF: 18K)
• April 2007 (PDF: 20K)
• May 2007 (PDF: 19K)
• June 2007 (PDF: 18K)
• July 2007 (PDF: 21K)
• August 2007 (PDF: 16K)
• September 2007 (PDF: 15K)
• October 2007 (PDF: 18K)
• November 2007 (PDF: 18K)
• December 2007 (PDF: 21K)
• January 2008 (PDF: 27K)
• February 2008 (PDF: 23K)
• March 2008 (PDF: 21K)

Agency and Academic Research Collaborative

• Snow Covered Areas, January 2007 (PDF: 1.5 MB)
• Snow Covered Areas, February 2007 (PDF: 914K)
• Snow Covered Areas, March 2007 (PDF: 750K)
• Snow Covered Areas, April 2007 (PDF: 908K)
• Snow Covered Areas, February 2008 (PDF: 1.1 MB)
• Snow Covered Areas, March 2008 (PDF: 1.3 MB)
• Snow Covered Areas, April 2008 (PDF: 946KB)

Climate Maps

• Water Resources of California, US Geological Survey
• Climate of California, US Geological Survey
• Weather and Climate Geospatial Resources, Humboldt State University

General Climate Data

• California Climate Data Archive
• California Hydrometeorological Networks

Precipitation

• Statewide Average of Annual Precipitation 1890-2002 (PDF: 14K)
• Monthly Historical Rain Data
• Regional Snow Water Content (PDF: 35K)

Temperature

• Statewide Average of Maximum, Average, and Minimum Temperature (PDF: 17K)
• Monthly Historical Temperature Data

Runoff

• Average Annual Water Year Runoff for Selected California Watersheds (PDF: 36K)

Extremes

• California Climate Extremes (PDF: 9K)
• Drought FAQ

Depth-Duration-Frequency

• Rainfall Depth-Duration-Frequency Data (Preliminary)
• Hourly Rainfall Depth-Duration-Frequency Data (Preliminary)
• Daily Rainfall Depth-Duration-Frequency Data (Preliminary)

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