It's supposed to be a very strong El Niño year, possibly the strongest ever:
/Logan5ssP9/will-this-el-nino-be-the-strongest
Will that result in a good ski season at Purgatory, in Southwestern Colorado (Durango)?
I'm currently planning to use the annual data from On The Snow. Complaints and better suggestions welcome, provided they come soon.
NWS is predicting better than average, but maybe not spectacular:

For historical data, this snowpack monitoring station is nearby:
https://nwcc-apps.sc.egov.usda.gov/awdb/site-plots/POR/WTEQ/CO/Cascade%20%232.html
Data will be taken season to date as of the actual season close date, regardless of snowfall after they close for the season. If they reopen after the actual normal season close that will not count.