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))


CA 24-hr Precip


OR 24-hr Precip


WA 24-hr Precip

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

California-Nevada Precipitation Page

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

Showing water-year-to-date precipitation (as a percent of normal accumulation over the water year) various regions throughout California and Nevada.