Graph of Percent Average Snow Water Equivalent
Wyoming Basins

For percentages for individual SnoTels, see either the Map or the Station Listing with Charts

Updated Monday, 12 January 2026

Percent of Average Key
< 25	25 to 50	50 to 75	75 to 90	90 to 110
110 < 125	125 to 150	150 to 175	175 to 200	> 200

Basin	SWE (% of Average)
Snake River	124
Upper Yellowstone-Madison	108
Wind River	137
Bighorn	124
Shoshone	88
Powder-Tongue	124
Belle Fourche	85
Upper North Platte River	66
Lower North Platte - Sweetwater - Laramie	55
Little Snake River	60
Upper Green River	79
Lower Green River	127
Upper Bear River	40
South Platte River	63