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 Fourche12 Oct 20240.03198-6.80%28 Mar 6.87 0.0301 May
Bighorn12 Oct 20240.06171-11.71%24 Apr 11.74 0.0621 Jun
Cheyenne12 Oct 20240.05198-7.51%28 Mar 7.50 0.0501 May
Laramie09 Oct 20240.03177-15.90%15 Apr 15.90 0.0313 Jun
Little Snake12 Oct 20240.07189-20.80%06 Apr 20.90 0.0720 Jun
Lower Green12 Oct 20240.28187-13.62%08 Apr 13.84 0.2813 Jun
Lower North Platte06 Oct 20240.03175-12.70%14 Apr 12.75 0.0329 May
Madison12 Oct 20240.05181-23.70%14 Apr 23.75 0.0525 Jun
Powder12 Oct 20240.03181-10.60%14 Apr 10.61 0.0310 Jun
Shoshone12 Oct 20240.03171-18.00%24 Apr 18.08 0.0329 Jun
Snake12 Oct 20240.02184-20.80%11 Apr 20.85 0.0229 Jun
South Platte31 Dec 20230.00-91-6.60%01 Apr 6.60 0.0026 Apr
Sweetwater11 Oct 20240.03176-15.00%18 Apr 15.03 0.0006 Jun
Tongue12 Oct 20240.04167-13.30%28 Apr 13.30 0.0409 Jun
Upper Bear12 Oct 20240.03186-17.80%09 Apr 17.81 0.0315 Jun
Upper Green12 Oct 20240.05184-15.90%11 Apr 15.96 0.0519 Jun
Upper North Platte11 Oct 20240.08178-24.30%16 Apr 24.35 0.0728 Jun
Wind31 Dec 20230.00-110-14.00%20 Apr 13.97 0.0025 Jun
Yellowstone12 Oct 20240.04171-21.20%24 Apr 21.24 0.0401 Jul
Data from Natural Resources Conservation Service SnoTel Network