The NRCS Snow Survey Program provides mountain snowpack data and streamflow forecasts for the western United States. Common applications of snow survey products include water supply management, flood control, climate modeling, recreation, and conservation planning.
Interim Issue Resolution: Air Temperature Data Bias
The extended range air temperature sensors used at SNOTEL sites in the continental U.S. calculate temperature from sensor output voltage using a linear least-squares regression algorithm. It has been determined that use of the linear least-squares regression algorithm has resulted in a data bias.
The Snow Survey and Water Supply Forecasting Program is actively working on a correction technique for this issue.
Please be advised that our website is going through a transition period due to changes in IT infrastructure. As we transition, many of our old products have been replaced with new products that will update more reliably and are interactive. During this process links will change. Lists of all of our current products can be found at the following links: Snow, Precipitation, Water Supply.
View current and historic precipitation, snow water equivalent, and snow depth data for SNOTEL sites. View streamflow, reservoir storage, and precipitation data for cooperator stations. Map Help
