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, 23 February 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	93
Upper Yellowstone-Madison	91
Wind River	109
Bighorn	102
Shoshone	81
Powder-Tongue	102
Belle Fourche	71
Upper North Platte River	56
Lower North Platte - Sweetwater - Laramie	58
Little Snake River	64
Upper Green River	69
Lower Green River	95
Upper Bear River	42
South Platte River	58