Mountains / Eastern Canada

Blue Mountain (ON) ON

7551,476 ft · long-term average 110" per season · window ticket ~$104 · prime window Dec–Jan

PassCast reseeded 2026-07-10 · season 2026-27

The short answer: PassCast projects a median of 93" at Blue Mountain (ON) for 2026-2783% of a typical season — with a skiability rating of 29/100, ~1 powder days, and Dec–Jan as the prime window. Updated daily from 10,000 simulations.

29SKIABILITY / 100Marginal natural snow
Snow quantity 35%31
Season lean 30%30
Powder days 20%4
Bust risk 15%56
Median sim
93" (83% of typical)
P(above typical)
19%
Powder days
~1 (6"+ days)

80% of simulated seasons land between 66" and 122". 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 Blue Mountain (ON), tilted by the live seasonal outlook

50"75"100"125"150"175"P10 66"P50 93"P90 122"typical 112"

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

ENSO: El Niño favored (99%)

The 2026-27 season is simulated by resampling Blue Mountain (ON)'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.

Regional ENSO signal: unfavorable (weak-moderate)

Quebec's El Niño signal is thermal — strong events run 2-4°C mild, converting marginal storms to rain (1997-98 was 'the winter El Niño cancelled' per Environment Canada). The juiced subtropical jet can still land big synoptic storms when cold air holds. Applied as a -5% tilt at partial weight.

ECMWF SEAS5 ensemble: dry Nov–Jan (76% of normal)

The 51-member SEAS5 seasonal forecast puts Nov–Jan snowfall at this grid point at 76% of its ERA5 normal (ensemble mean 52", spread 35–67"). Applied as a -6% tilt — experimental, heavily shrunk and clamped because seasonal models and reanalysis have different biases.

Pre-season: climate drivers only

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 readEastern Canada · from the 2026-27 outlook

Quebec's strong-El Niño problem is warmth more than storm count: 1997-98 — the winter Environment Canada says El Niño 'cancelled' — brought Quebec City its mildest winter on record, and 2015-16 repeated the trick at Tremblant. The wildcard is the El Niño-fueled subtropical jet, which can still land heavyweight synoptic snowstorms on the St. Lawrence when cold air cooperates. Expect a below-average, snowmaking-dependent season with a compressed mid-January-to-early-March core.

Full global outlook →

Month by monthENSO-conditioned analog medians vs a typical month — when this season should deliver

Nov104%Dec88%Jan100%Feb100%Mar92%Apr100%
Typical month (median)ENSO-conditioned lean, wetENSO-conditioned lean, dry

Prime window: Dec–Jan — the deepest contiguous stretch of the conditioned season. Aim the trip there.

The analog poolEvery season since 1990 at Blue Mountain (ON) (ERA5, calibrated to the resort's reported average), colored by ENSO phase

50"75"125"150"1990-91: 93" (ONI +0.4)1991-92: 111" (ONI +1.7)1992-93: 105" (ONI +0.1)1993-94: 71" (ONI +0.1)1994-95: 85" (ONI +1.0)1995-96: 142" (ONI -0.9)1996-97: 142" (ONI -0.5)1997-98: 107" (ONI +2.2)1998-99: 80" (ONI -1.6)1999-00: 97" (ONI -1.7)2000-01: 108" (ONI -0.7)2001-02: 96" (ONI -0.1)2002-03: 113" (ONI +0.9)2003-04: 114" (ONI +0.4)2004-05: 140" (ONI +0.6)2005-06: 122" (ONI -0.8)2006-07: 100" (ONI +0.7)2007-08: 147" (ONI -1.6)2008-09: 138" (ONI -0.8)2009-10: 72" (ONI +1.5)2010-11: 102" (ONI -1.3)2011-12: 94" (ONI -0.7)2012-13: 111" (ONI -0.3)2013-14: 137" (ONI -0.3)2014-15: 112" (ONI +0.7)2015-16: 114" (ONI +2.6)2016-17: 115" (ONI -0.2)2017-18: 128" (ONI -0.8)2018-19: 113" (ONI +0.9)2019-20: 102" (ONI +0.6)2020-21: 94" (ONI -0.9)2021-22: 115" (ONI -0.8)2022-23: 116" (ONI -0.5)2023-24: 78" (ONI +1.9)2024-25: 116" (ONI -0.5)2025-26: 129" (ONI -0.4)19901995200020052010201520202025
La Niña winterNeutralEl Niño winterTypical winter (median)

Pass math for Blue Mountain (ON)

Verdicts run the full simulated snow distribution through breakeven math at ~$104/day window prices. Add trip legs on the home page to compare passes across your whole season.

10days
Ikon Base$1,019
WAIT
26%seasons it pays off$56expected vs tickets9.8breakeven days
  • Breakeven is 9.8 days at ~$104/day window tickets; you plan 10.
  • Covers Blue Mountain (ON) (unlimited).
  • Snow-adjusted across the simulated seasons, expect ~9.3 covered days; the pass beats window tickets in 26% of 10,000 simulated seasons (mean shortfall $56).
  • Marginal — waiting costs only price-increase risk. Stepped increases continue until sales end in December.
Unlimited at a smaller Alterra set and 5 days at most partners, with peak-holiday blackouts. Excludes Jackson Hole, Alta, Snowbasin, and Deer Valley.
Ikon Pass$1,449
SKIP
0%seasons it pays off$486expected vs tickets13.9breakeven days
  • Breakeven is 13.9 days at ~$104/day window tickets; you plan 10.
  • Covers Blue Mountain (ON) (unlimited).
  • Snow-adjusted across the simulated seasons, expect ~9.3 covered days; the pass beats window tickets in 0% of 10,000 simulated seasons (mean shortfall $486).
  • At this plan, window tickets or a cheaper product wins.
Unlimited at ~18 Alterra destinations, 7 days each at partners (Jackson Hole, Alta, Big Sky, Aspen...). No blackouts; some partners need reservations.

Blue Mountain (ON) 2026-27: straight answers

How much snow will Blue Mountain (ON) get in the 2026-27 season?
PassCast's latest 10,000-run simulation (reseeded 2026-07-10) puts the median at 93 inches — 83% of a typical season at Blue Mountain (ON) — with 80% of outcomes between 66 and 122 inches. The forecast blends Blue Mountain (ON)'s own 36-season ENSO analog record with NOAA's seasonal outlook and the ECMWF SEAS5 ensemble.
Is a season pass worth it for Blue Mountain (ON) in 2026-27?
Blue Mountain (ON) is on Ikon Pass, Ikon Base for 2026-27. At roughly $104 for a peak-window day ticket, the Ikon Base ($1,019) breaks even in about 10 days here. PassCast's simulator on this page runs your planned days through all 10,000 simulated seasons for a full verdict.
When is the best time to ski Blue Mountain (ON) in 2026-27?
Dec–Jan is the prime window — the deepest contiguous stretch of the ENSO-conditioned season at Blue Mountain (ON). Month-by-month medians are charted on this page.
How reliable will the snow be at Blue Mountain (ON) this season?
The simulation gives Blue Mountain (ON) a 19% chance of beating its typical season and a median of about 1 six-inch-plus powder days. Its skiability rating is 29/100 (“Marginal natural snow”), 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.