USCRN recently completed an update to the calculation of precipitation and the quality control ranges of several variables. For more information please go to the Data Revisions section of our Detailed Documentation page (home page, left column, second link).

U.S. Climate Reference Network

USCRN Station

The U.S. Climate Reference Network (USCRN) is a systematic and sustained network of climate monitoring stations with sites across the conterminous U.S., Alaska, and Hawaii. These stations use high-quality instruments to measure temperature, precipitation, wind speed, soil conditions, and more. Information is available on what is measured and the USCRN station instruments.

The vision of the USCRN program is to provide a continuous series of climate observations for monitoring trends in the nation's climate and supporting climate-impact research.

Stations are managed and maintained by the National Oceanic and Atmospheric Administration's (NOAA) National Centers for Environmental Information.