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, 17 November 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	54
Upper Yellowstone-Madison	38
Wind River	79
Bighorn	60
Shoshone	50
Powder-Tongue	74
Belle Fourche	51
Upper North Platte River	27
Lower North Platte - Sweetwater - Laramie	12
Little Snake River	15
Upper Green River	29
Lower Green River	80
Upper Bear River	14
South Platte River	17