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 Tuesday, 23 December 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	120
Upper Yellowstone-Madison	87
Wind River	138
Bighorn	110
Shoshone	89
Powder-Tongue	118
Belle Fourche	86
Upper North Platte River	71
Lower North Platte - Sweetwater - Laramie	79
Little Snake River	70
Upper Green River	70
Lower Green River	107
Upper Bear River	31
South Platte River	66