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 Wednesday, 30 April 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	100
Upper Yellowstone-Madison	85
Wind River	100
Bighorn	103
Shoshone	96
Powder-Tongue	92
Belle Fourche	66
Upper North Platte River	109
Lower North Platte - Sweetwater - Laramie	8
Little Snake River	50
Upper Green River	79
Lower Green River	92
Upper Bear River	59
South Platte River	68