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 Fourche15 Oct 20240.10201-6.81%28 Mar 6.87 01 May
Bighorn12 Oct 20240.08171-11.71%24 Apr 11.74 21 Jun
Cheyenne15 Oct 20240.10201-7.41%28 Mar 7.50 01 May
Laramie15 Oct 20240.04183-15.90%15 Apr 15.90 13 Jun
Little Snake15 Oct 20240.09192-20.80%06 Apr 20.90 20 Jun
Lower Green13 Oct 20240.58188-13.34%08 Apr 13.84 13 Jun
Lower North Platte15 Oct 20240.05184-12.70%14 Apr 12.75 29 May
Madison15 Oct 20240.03184-23.70%14 Apr 23.75 25 Jun
Powder15 Oct 20240.05184-10.60%14 Apr 10.61 10 Jun
Shoshone15 Oct 20240.06174-18.00%24 Apr 18.08 29 Jun
Snake15 Oct 20240.06187-20.80%11 Apr 20.85 29 Jun
South Platte31 Dec 20230.00-91-6.60%01 Apr 6.60 26 Apr
Sweetwater11 Oct 20240.03176-15.00%18 Apr 15.03 06 Jun
Tongue12 Oct 20240.05167-13.20%28 Apr 13.30 09 Jun
Upper Bear15 Oct 20240.06189-17.80%09 Apr 17.81 15 Jun
Upper Green15 Oct 20240.06187-15.90%11 Apr 15.96 19 Jun
Upper North Platte15 Oct 20240.08182-24.30%16 Apr 24.35 28 Jun
Wind31 Dec 20230.00-110-14.00%20 Apr 13.97 25 Jun
Yellowstone15 Oct 20240.06174-21.20%24 Apr 21.24 01 Jul
Data from Natural Resources Conservation Service SnoTel Network