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, 16 March 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	95
Upper Yellowstone-Madison	82
Wind River	112
Bighorn	105
Shoshone	84
Powder-Tongue	104
Belle Fourche	77
Upper North Platte River	69
Lower North Platte - Sweetwater - Laramie	65
Little Snake River	62
Upper Green River	72
Lower Green River	92
Upper Bear River	53
South Platte River	66