Precipitation Data

CNRFC Precipitation Text Products

A summary of precipitation for the past 1, 2, 3, 6, 12, and 24 hours updated 25 and 51 minutes after the hour.

California Nevada Precipitation Summary
California Nevada Precipitation Summary (Alternate Link)

A summary of 6 hour and 24 hour precipitation ending at 5 AM PDT updated 9:00 AM PDT.

6/24-Hour Precipitation Summary
6/24 Hour Precipitation Summary (Alternate Link)

A summary of precipitation since midnight, current seasonal totals (since July 1), and comparison to last year's seasonal totals. Precipitation totals are ending at 5 PM PDT. This product is updated at 7:00 PM PDT.

California Climate Station Precipitation Summary
California Climate Station Precipitation Summary (Alternate Link)

Observed 24-hour Basin Precipitation and next 24 Hour Basin QPF/Freezing Levels

24-Hour Basin QPE/QPF/Freezing Level

Gridded Precipitation Maps

Please Note: The areas in southern California outlined in black delineate the areal coverage of the larger fire complexes that burned in 2006 or 2007.

Small Scale Precipitation Gage Maps

Regional Large Scale Precipitation Gage Maps

California County Precipitation Maps

Beginning November 9, 2005, 24-hour precipitation gage maps for the entire CNRFC area, northern California, southern California, and Nevada will be archived and available for retrieval. An incomplete set of the gridded version for the entire CNRFC area is also available (back to 04/18/2003). The 24-hour period runs from 4am-4am during PST and 5am-5am PDT. The file naming convention uses the ending date, so for example, today's date will provide precipitation data for the past 24 hours ending at 4am PST (5am PDT) this morning. Starting April 06, 2006, additional gage map subareas will be archived and available for retrieval.

Please Note: Precipitation gage maps are available daily after 4:30 am PST (5:30 am PDT). The CNRFC Grid map is available after 8:30 am PST (9:30 am PDT).

Please note that the maps display provisional data from automated gages and have not been verified for accuracy. Units of measurement are inches. M denotes missing data.

National Precipitation Graphics Suite

The National Weather Service is now generating a graphical representation of short-term observed and climatic trends of precipitation. This precipitation analylsis is available for the lower 48 United States (CONUS) and Puerto Rico.

NWS Precipitation Analysis

Monthly Observed Precipitation - NWS Cooperative Observers

The following are data from NWS cooperative observers for the current water year and historically back to Water Year 2002. The water year starts on Oct 1 and ends on Sept 30. Precipitation data is provided for each month of the current water year, total precipitation for the water year, the percent of normal for the water year to date, and the percent of the entire water year received to date.

Current Water Year (2008) Monthly Observed Precipitation
Water Year 2007 Monthly Observed Precipitation
Water Year 2006 Monthly Observed Precipitation
Water Year 2005 Monthly Observed Precipitation
Water Year 2004 Monthly Observed Precipitation
Water Year 2003 Monthly Observed Precipitation
Water Year 2002 Monthly Observed Precipitation

ALERT Rainfall/Stream Level Data - Sacramento County Public Works
SF Bay Area/Central CA Precipitation for recent 1,2,3,6,12,24 hours
San Bernardino Co. ALERT Rainfall Data - San Bernardino Co. Flood Control District
Los Angeles County Precipitation - Los Angeles County Dept. of Public Works
Precipitation/Snow Information - California Dept. of Water Resources
Precipitation Products - NESDIS/SSD - Satellite Analysis Branch
Srn CA Precipitation Maps and Tables (WFO Los Angeles/Oxnard)
Telemetry Data - U.S. Army Corps of Engineers - Los Angeles District
National Hourly/Daily Rain Data - NOAA Forecast Systems Laboratory

Snowfall Data

California-Nevada Snow-Precipitation Update - NRCS
Snow Conditions - California Cooperative Snow Surveys
Interactive Snow Information - National Operational Hydrologic Remote Sensing Center