About the Data:
The Climate Prediction Center daily (1200 - 1200 UTC) precipitation reports are from over 10,000 stations across the US, including Alaska, Hawaii, and Puerto Rico in near real time (within 12 hours). The data include multiple sources across the US: "First order" World Meteorological Organization (WMO) Global Telecommunications System (GTS) sites; NWS Cooperative Observer Network (COOP) via River Forecast Centers (RFC) and Weather Forecast Offices (WFO); the Hydrometeorological Automated Data System (HADS) dataset; the SNOTEL [SNOwpack TELemetry] dataset; and the Integrated Flood Observing and Warning System (IFLOWS).

NOTE:: Please be advised that there is no quality control applied to this data.