Supercell over Laramie
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Peak Snow Water Equivalent Dates and Totals by Basin With Meltout Dates

This year's "to-date" peak snow water equivalent (SWE) compared to median.

Red indicates earlier peak date or lower SWE compared to median

Blue indicates later peak date or higher SWE compared to median

Click Column Headers to Sort

Basin
Click to View Chart		This Year
Peak Date		This Year Peak
SWE (inches)		Days
Early/Late		Peak SWE
Dif (inches)		Percent of
Median Peak SWE		Median
Peak Date		Median Peak
SWE (inches)		Current
SWE		Median
Meltout Date
Belle Fourche07 Apr 20239.552.6138%02 Apr 6.9 0.030 Apr
Bighorn09 Apr 202312.0-160.3103%25 Apr 11.7 0.019 Jun
Cheyenne07 Apr 20239.251.7123%02 Apr 7.5 0.030 Apr
Laramie08 Apr 202317.3-111.4109%19 Apr 15.9 0.212 Jun
Little Snake09 Apr 202332.1311.6157%06 Apr 20.5 5.719 Jun
Lower Green09 Apr 202318.404.8135%09 Apr 13.6 1.312 Jun
Lower North Platte09 Apr 202314.7-61.9115%15 Apr 12.8 0.029 May
Madison09 Apr 202329.4-65.6124%15 Apr 23.8 6.624 Jun
Powder08 Apr 202311.6-91.0109%17 Apr 10.6 0.008 Jun
Shoshone09 Apr 202318.1-150.0100%24 Apr 18.1 1.629 Jun
Snake25 Apr 202325.6135.0124%12 Apr 20.6 4.028 Jun
South Platte09 Apr 20236.011-1.283%29 Mar 7.2 0.026 Apr
Sweetwater28 Apr 202320.0105.0133%18 Apr 15.0 2.505 Jun
Tongue09 Apr 202312.8-23-0.696%02 May 13.4 0.009 Jun
Upper Bear09 Apr 202325.9-39.3156%12 Apr 16.6 2.515 Jun
Upper Green08 Apr 202318.2-52.2114%13 Apr 16.0 2.518 Jun
Upper North Platte09 Apr 202329.2-74.8120%16 Apr 24.4 8.626 Jun
Wind28 Apr 202315.661.6111%22 Apr 14.0 1.125 Jun
Yellowstone28 Apr 202324.142.9114%24 Apr 21.2 3.602 Jul
Data from Natural Resources Conservation Service SnoTel Network