Annual Precipitation Data for Northern California 1944-2024
The California Department of Water Resources (DWR), Northern Region Office (NRO), maintained 33 precipitation stations from 1944 to 2024. Stations record total annual precipitation. This information can help track historic trends in annual precipitation. The CSV file contains total annual precipitation data in inches. The PDF file contains a description of stations and methods for data collection.
Data files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
Annual Precipitation Data for Northern California 1944-2024 The California Department of Water Resources (DWR), Northern Region Office (NRO), maintained 33 precipitation stations from 1944 to 2024. Stations record total annual precipitation. This information can help track historic trends in annual precipitation. The CSV file contains total annual precipitation data in inches. The PDF file contains a description of stations and methods for data collection. | Download | CSV | 09/12/26 |
Supporting files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
DWR Precipitation Stations Methodology Summary of data collection procedure | PDF | 09/12/26 |