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 Fourche1.83270-5.027%28 Mar 6.87 01 May
Bighorn11 Jan 20254.78-103-7.041%24 Apr 11.74 21 Jun
Cheyenne11 Jan 20252.15-76-5.329%28 Mar 7.50 01 May
Laramie09 Jan 20254.84-96-11.130%15 Apr 15.90 13 Jun
Little Snake11 Jan 20257.80-85-12.738%06 Apr 20.50 19 Jun
Lower Green10 Jan 20255.68-88-7.942%08 Apr 13.58 12 Jun
Lower North Platte11 Jan 20251.95-93-10.815%14 Apr 12.75 29 May
Madison10 Jan 202511.12-93-9.953%13 Apr 20.98 25 Jun
Powder11 Jan 20253.80-93-6.836%14 Apr 10.61 10 Jun
Shoshone11 Jan 202511.30-102-6.763%23 Apr 17.98 27 Jun
Snake09 Jan 202512.32-92-8.659%11 Apr 20.89 29 Jun
South Platte09 Jan 20250.60254-5.710%29 Mar 6.30 25 Apr
Sweetwater11 Jan 20257.47-97-7.650%18 Apr 15.03 06 Jun
Tongue11 Jan 20253.50-110-9.826%01 May 13.30 10 Jun
Upper Bear09 Jan 20257.15-90-10.740%09 Apr 17.81 16 Jun
Upper Green11 Jan 20259.68-90-6.361%11 Apr 15.96 16 Jun
Upper North Platte11 Jan 20258.41-95-15.935%16 Apr 24.35 29 Jun
Wind11 Jan 20257.81-99-6.256%20 Apr 13.97 25 Jun
Yellowstone10 Jan 202514.93-104-5.972%24 Apr 20.81 01 Jul
Data from Natural Resources Conservation Service SnoTel Network