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 Fourche25 Mar 20255.20-3-1.776%28 Mar 6.87 0.0701 May
Bighorn06 Apr 202510.68-18-1.191%24 Apr 11.74 9.9021 Jun
Cheyenne11 Mar 20254.90-17-2.665%28 Mar 7.50 0.1001 May
Laramie07 Apr 202513.41-8-2.584%15 Apr 15.90 9.1913 Jun
Little Snake07 Apr 202518.481-2.488%06 Apr 20.90 11.2620 Jun
Lower Green06 Apr 202512.80-2-1.092%08 Apr 13.84 7.1413 Jun
Lower North Platte06 Apr 20259.25-8-3.573%14 Apr 12.75 5.8329 May
Madison09 Apr 202519.62-5-2.290%14 Apr 21.80 15.2025 Jun
Powder24 Mar 20257.76-21-2.873%14 Apr 10.61 5.5010 Jun
Shoshone25 Mar 202517.17-30-0.995%24 Apr 18.08 15.5329 Jun
Snake06 Apr 202522.55-51.7108%11 Apr 20.85 19.2929 Jun
South Platte20 Mar 20253.30-12-3.350%01 Apr 6.60 0.0026 Apr
Sweetwater25 Mar 202513.47-24-1.690%18 Apr 15.03 10.5706 Jun
Tongue29 Apr 202511.701-1.688%28 Apr 13.30 11.7009 Jun
Upper Bear06 Apr 202516.40-3-1.492%09 Apr 17.81 10.4815 Jun
Upper Green07 Apr 202516.47-40.5103%11 Apr 15.96 13.6819 Jun
Upper North Platte06 Apr 202521.98-10-2.490%16 Apr 24.35 15.9828 Jun
Wind07 Apr 202513.24-13-0.795%20 Apr 13.97 12.3925 Jun
Yellowstone29 Apr 202520.9060.1101%23 Apr 20.79 20.9001 Jul
Data from Natural Resources Conservation Service SnoTel Network