Precipitation Observations

Precipitation Observations
This page shows gridded precipitation products for the previous 1-hour, 6-hours, 24-hours, 7-days, and current water year, as well as rain gauge observations for the previous 24-hours from the Community Collaborative Rain, Hail & Snow Network (CoCoRaHS) and water-year-to-date rain gauge observations throughout California. Gridded precipitation data are the National Stage IV Quantitative Precipitation Estimate (QPE) Product, provided by the NOAA/NCEP/EMC. Normal precipitation data are the CPC US Unified Precipitation product, provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado.
Gridded Products: | 1-h |6-h | 24-h | 7-day | Water-Year-to-Date |
Rain Gauge Observations: | 24-h CoCoRaHs |Water-Year-to-Date |


Gridded Precipitation Products

National Stage IV QPE Product

Light gray indicates missing data

Precipitation over the Latest 24-hour Period Ending at 7 AM

Community Collaborative Rain, Hail & Snow Network (CoCoRaHS)

CaliforniaCA 24-hr Precip OregonOR 24-hr Precip
WA 24-hr Precip

Current Water Year

Gridded Precipitation Products for the Current Water Year

Rain Gauge Observation data for the Current Water Year

Click on a title or image to open a new page with rain gauge observations. Both data sets updated daily.

Western U.S. Rain Gauge Observations

Total water-year-to-date precipitation across the western U.S. from station observations.

San Diego Precipitation Page

Showing water-year-to-date precipitation (as a percent of normal accumulation over the water year) in San Diego county, all of California, and the Sierra Nevada 8-station index.