Sierra-at-Tahoe CA
The short answer: PassCast projects a median of 490" at Sierra-at-Tahoe for 2026-27 — 105% of a typical season — with a skiability rating of 76/100, ~28 powder days, and Jan–Feb as the prime window. Updated daily from 10,000 simulations.
80% of simulated seasons land between 246" and 724". Reseeded daily as ENSO observations, CPC outlooks, and SEAS5 runs update.
10,000 simulated 2026-27 seasonsENSO-weighted resampling of 36 real seasons (1990–2026) at Sierra-at-Tahoe, tilted by the live seasonal outlook
Highlighted bars span the middle half of outcomes (P25–P75). The yellow dashed line is a typical season — the median of the last 36 at this mountain.
What's driving this forecast
The 2026-27 season is simulated by resampling Sierra-at-Tahoe's historical seasons weighted toward El Niño analog years. NOAA CPC El Niño Advisory (June 11, 2026): El Niño conditions are present and expected to strengthen into winter 2026-27, with a 63% chance of a very strong event (Niño3.4 ≥ +2.0°C) during Nov-Jan. CPC DJF strength odds: very strong 46%, strong 33%, moderate 16%. IRI (June 22) concurs at 98% El Niño for DJF. Latest observed ONI (AMJ 2026): +1.0.
Tahoe straddles the storm-track pivot: record 1982-83 El Niño snow, but the 1987 and 1992 strong events were droughts. High variance, low predictive value. Applied as a +2% tilt at partial weight.
Day-to-day weather models have no skill this far out, so the near-term forecast contributes 0% weight today. The simulation leans entirely on ENSO-conditioned climatology — exactly what an honest seasonal outlook should do in summer. Weighting shifts toward live forecasts as opening day approaches.
The regional readSierra · from the 2026-27 outlook
Strong El Niño is the Sierra's classic wet card, but it's south-weighted and high-variance: 1982-83 and 1997-98 were all-timers, 2023-24 finished above normal, yet 2015-16 — the 'Godzilla' El Niño that was supposed to end the drought — gave Tahoe merely an average year. Mammoth and the southern Sierra carry the continent's best odds of an above-average season outside the Southwest; Tahoe is a better-than-even wet bet with real rain-line risk below 7,000 feet. Expect a back-loaded winter — January through March is when strong-Niño Sierra seasons detonate.
Month by monthENSO-conditioned analog medians vs a typical month — when this season should deliver
Prime window: Jan–Feb — the deepest contiguous stretch of the conditioned season. Aim the trip there.
The analog poolEvery season since 1990 at Sierra-at-Tahoe (ERA5, calibrated to the resort's reported average), colored by ENSO phase
Pass math for Sierra-at-Tahoe
Sierra-at-Tahoe isn't on a multi-resort pass — but you can still see what a season here is worth.
No multi-resort pass covers these mountains — window tickets are the play.
Sierra-at-Tahoe 2026-27: straight answers
- How much snow will Sierra-at-Tahoe get in the 2026-27 season?
- PassCast's latest 10,000-run simulation (reseeded 2026-07-10) puts the median at 490 inches — 105% of a typical season at Sierra-at-Tahoe — with 80% of outcomes between 246 and 724 inches. The forecast blends Sierra-at-Tahoe's own 36-season ENSO analog record with NOAA's seasonal outlook and the ECMWF SEAS5 ensemble.
- Is a season pass worth it for Sierra-at-Tahoe in 2026-27?
- Sierra-at-Tahoe is not on Epic, Ikon, or Mountain Collective for 2026-27 — budget about $155 per peak-window day ticket, or check the resort's own multi-day products.
- When is the best time to ski Sierra-at-Tahoe in 2026-27?
- Jan–Feb is the prime window — the deepest contiguous stretch of the ENSO-conditioned season at Sierra-at-Tahoe. Month-by-month medians are charted on this page.
- How reliable will the snow be at Sierra-at-Tahoe this season?
- The simulation gives Sierra-at-Tahoe a 57% chance of beating its typical season and a median of about 28 six-inch-plus powder days. Its skiability rating is 76/100 (“Exceptional season likely”), updated daily.
Sources: ERA5 reanalysis & multi-model forecasts via Open-Meteo · NOAA CPC ONI, ENSO advisory & seasonal outlook · ECMWF SEAS5 · pass prices verified July 2026. See methodology for the honest fine print.