SDSU Mesonet website shows current soil temp, thaw depth and more

South Dakotans can review the state’s soil moisture map at

Mesonet Director Nathan Edwards at South Dakota State University says the map has a stack of discs for each station indicating status at different depths, updated in real-time. He says as a sensor at that depth thaws, its corresponding disc changes from gray to a color indicating its soil moisture.

The map also offers frost depth and thaw depth. Edwards explained, frost depth is the deepest occurrence of 32 degrees Fahrenheit and thaw depth is shallowest occurrence of 32 degrees Fahrenheit.

Mesonet soil moisture maps have been heavily relied on by those in emergency management and will be watched closely by those worried about planting into wet fields.

Operated by South Dakota State University with the support of local station sponsors, the South Dakota Mesonet is the state’s weather network serving the needs of the public, agriculture, water resources, emergency management and research.