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 Friday, 24 October 2025

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	70
Upper Yellowstone-Madison	61
Wind River	95
Bighorn	59
Shoshone	100
Powder-Tongue	87
Belle Fourche	166
Upper North Platte River	66
Lower North Platte - Sweetwater - Laramie	0
Little Snake River	0
Upper Green River	41
Lower Green River	83
Upper Bear River	80
South Platte River	34