Snow Today

Daily images of snow data and seasonal analyses

What's New from Snow Today

SWE graph for four hydrologic basins
Snow-cover-days anomaly map, April 2021
Sierra Nevada bighorn sheep in snow

Most Recent Monthly Insight

Analysis - Snow Today
May 7, 2025
Snow cover dropped in most of the US West during April, but still led to average snow cover overall, ranking twelfth in the 25-year satellite record. Snow water equivalent (SWE) decreased in every state in the western United States, with coastal states showing the largest decreases at individual stations.

What is Snow Today?

An avalanche
A variety of factors, including terrain, slope steepness, weather, temperature, and snowpack conditions can cause an avalanche. — Credit: Copyright Richard Armstrong

Snow Today is a NASA-funded research project that examines where snow is present, where it has snowed recently, and how much water is in the snow, while also comparing between snow today, snow yesterday, snow last year, and snow over the last few decades. 

You can find the following resources on our website:

The Snow Today project is a collaborative effort between the National Snow and Ice Data Center (NSIDC) and the Institute of Arctic and Alpine Research (INSTAAR).