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 Sunday, 05 April 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	69
Upper Yellowstone-Madison	65
Wind River	96
Bighorn	72
Shoshone	67
Powder-Tongue	72
Belle Fourche	42
Upper North Platte River	62
Lower North Platte - Sweetwater - Laramie	1
Little Snake River	0
Upper Green River	44
Lower Green River	55
Upper Bear River	16
South Platte River	34