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

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Basin
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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 Fourche08 Dec 20240.7249-6.410%03 Apr 7.1 0.703 May
Bighorn08 Dec 20243.3227-8.528%25 Apr 11.8 3.319 Jun
Cheyenne08 Dec 20241.0249-6.613%03 Apr 7.6 1.001 May
Laramie08 Dec 20242.6233-13.716%19 Apr 16.3 2.612 Jun
Little Snake08 Dec 20244.1246-16.420%06 Apr 20.5 4.119 Jun
Lower Green08 Dec 20242.6243-11.019%09 Apr 13.6 2.612 Jun
Lower North Platte13 Oct 20242.5181-10.519%15 Apr 13.0 1.329 May
Madison08 Dec 20244.5238-19.319%14 Apr 23.8 4.524 Jun
Powder13 Oct 20241.9179-9.117%17 Apr 11.0 1.808 Jun
Shoshone08 Dec 20245.5228-12.630%24 Apr 18.1 5.529 Jun
Snake08 Dec 20244.9239-16.023%13 Apr 20.9 4.929 Jun
South Platte07 Dec 20240.6253-6.09%29 Mar 6.6 0.526 Apr
Sweetwater08 Dec 20243.3232-11.922%20 Apr 15.2 3.305 Jun
Tongue06 Dec 20242.8218-10.621%02 May 13.4 2.709 Jun
Upper Bear08 Dec 20243.6240-14.220%12 Apr 17.8 3.615 Jun
Upper Green08 Dec 20243.0239-13.019%13 Apr 16.0 3.018 Jun
Upper North Platte08 Dec 20244.5236-20.118%16 Apr 24.6 4.526 Jun
Wind08 Dec 20244.0229-10.128%23 Apr 14.1 4.025 Jun
Yellowstone08 Dec 20245.3228-16.824%24 Apr 22.1 5.302 Jul
Data from Natural Resources Conservation Service SnoTel Network