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, 02 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	97
Upper Yellowstone-Madison	91
Wind River	112
Bighorn	105
Shoshone	84
Powder-Tongue	102
Belle Fourche	78
Upper North Platte River	62
Lower North Platte - Sweetwater - Laramie	70
Little Snake River	77
Upper Green River	69
Lower Green River	104
Upper Bear River	40
South Platte River	58