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Bigrock Mountain ski resort
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Tier C — ENSO-proof

North America

Bigrock Mountain Snow Forecast

Status unconfirmed

Best months to book: March, February, January · 30-yr snow record

Status unconfirmed

Weather data is still collected for informational purposes.

Last Snowfall

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Past 24 Hours

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Past 48 Hours

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Past 10 Days

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7-Day Forecast

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Snow Depth

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Updated: Sep 22, 11:01 PM•Weather at base: 204m
SnowSure™ ScoreAI
Status unconfirmed

Bigrock Mountain is closed for the season. Here is when it is usually best to book.

Best months to book: March, February, January.NovDec3Jan2Feb1MarAprMay

March

#1 to book

41cm avg

February

#2 to book

40cm avg

January

#3 to book

39cm avg

Ranked on 30-year snowfall and base-depth record. The live score returns when the lifts turn.

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Depth

Resort closed — no current ski-base depth.

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Recent

No new snow has been reported in the past week.

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Forecast

Dry for the next 7 days.

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Historic

This season-to-date, the snow accumulation is below the 5-year average.

Status unconfirmed · Data updated Tue, Sep 22, 11:01 PM UTC · informational only

Snow Summary

485m
ECMWFGFSGEMJMAICONMétéo-Fr

Updated Sep 22, 2026 at 11:01 PM

0cm
24h
0cm
Past 10d
7-Day Forecast
0
Prev10d
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Now22
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W23
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T24
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F25
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S26
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S27
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M28
Days 8–14 and every model are in Pro.Unlock with Pro
Past
Today
Forecast

Hourly Forecast

22 Tue
13° / 3°
23 Wed
13° / 1°
24 Thu
17° / 2°
25 Fri
19° / 6°
26 Sat
17° / 5°
27 Sun
17° / 6°
28 Mon
18° / 6°
Days 8–14 and every model are in SnowSure Pro.Unlock with Pro
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight29 Tue30 Wed1 Thu2 Fri3 Sat4 Sun5 Mon
Conditions☀️☀️☀️☀️☀️☀️☀️☀️☀️☀️☀️☀️☁️☁️☁️☁️☁️☁️☀️🌤️☀️
clearclearclearclearclearclearclearclearclearclearclearclearcloudycloudycloudycloudycloudycloudyclearmostly clearclear
Summit485 mModeled
Temp°C6°12°5°6°13°5°7°16°7°10°18°9°9°17°8°11°17°9°9°16°8°
Feels like°C2°10°2°3°11°2°5°15°5°7°16°7°7°15°6°9°15°6°7°14°6°
Snowcm·····················
Precipmm·····················
Windkm/h13121188599712108997777586
Mid-mountain345 mModeled
Temp°C7°13°6°7°14°6°8°17°8°11°19°10°10°18°9°11°18°10°10°17°9°
Feels like°C3°11°3°4°12°3°6°17°6°9°17°8°8°16°7°10°16°8°8°15°7°
Snowcm·····················
Precipmm·····················
Windkm/h13121188599712108997777586
Base204 mModeled
Temp°C8°14°7°8°15°6°9°18°9°12°20°11°11°19°10°12°18°11°11°18°10°
Feels like°C5°12°4°5°13°4°7°18°7°10°19°9°9°17°8°11°18°9°10°16°8°
Snowcm·····················
Precipmm·····················
Windkm/h13121188599712108997777586
Humidity%805880795584816386765477805682765979775275
0°C linem—————————————————————
Sunhours

Freeze line is the height where rain turns to snow. Plain: straight from the models. Marked ○: estimated from temperature. Sun is hours of actual sunshine, not day length; blank means we have no reading.

Forecast Range · SnowSure Pro

Every model for Bigrock Mountain, side by side for 14 days

Where the models agree, where they split, and which one has been most accurate here. Free for 14 days, then yearly.

Unlock with Pro

SnowSure™ blend — verified model weighting

The black line is not a simple average. For Bigrock Mountain (rockies), we combine seven global weather models using weights learned from daily forecast verification — comparing each model's prediction to measured snowfall (SNOTEL, resort reports, ERA5).

  • 1.Horizon buckets: days 1–3, 4–7, and 8–14 each get separate weights — short-range skill differs from long-range.
  • 2.Regional calibration: weights come from verified error in this geography (Rockies, Alps, Japan, etc.), recalculated weekly.
  • 3.Ground truth only: we never grade a forecast against another model — only against measured snow.

Building verification history for this resort.

How we verify forecasts →

Snowfall Forecast Maps

Northeast US region

El Niño Outlook · Winter 2026-27

Bigrock Mountain El Niño rank & forecast

Bigrock Mountain ranks #195 of 488 SnowSure resorts — Tier C, +1% in strong El Niño winters.

Tier C — ENSO-proof: Strong El Niño winters looked like a normal year here — within about ±3% of this resort’s own 30-year snowfall average. Not a jackpot, not a bust: a hedge if you’re planning around El Niño.

#195 of 488Tier C — ENSO-proof

Strong-event signal: +1% vs this resort's 30-yr avg

In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Bigrock Mountain averaged +1% versus its own 30-year snowfall baseline. El Niño has historically made little difference here — this is an ENSO-proof mountain, for winter 2026-27 as in past events. Analog winters: '97-98 +15%, '15-16 -4%, '23-24 -7%. A pattern, not a promise.

'97-98 +15%'15-16 −4%'23-24 −7%

Signal = average snowfall in the three strongest El Niño winters since 1996 ('97-98, '15-16, '23-24) vs this resort's own 30-year ERA5 baseline. n=3 — a lean, not a law. Updated monthly against measured snowfall Dec–Mar.

Full El Niño report →

ENSO seasonal analog

History · not a forecast

In 10 past El Niño winters at Bigrock Mountain, ERA5 season snowfall median was 212 cm (83 in), about 3% above this resort’s long-term median. This is a historical analog from reanalysis — not a prediction of this winter’s storm track.

Prevailing ONI

El Niño

JJA 2026 · ANOM +1.8°C

Analog season median

212cm

10 El Niño winters · 3% above median

All-season median

207cm

Across 30 ERA5 seasons (2026-27)

PhaseSeasonsMedianp25–p75Recent analogs
El Niñocurrent10212cm197cm – 243cm2023, 2019, 2018, 2015, 2014, 2009
La Niña12214cm188cm – 231cm2022, 2021, 2020, 2017, 2011, 2010
ENSO-neutral8184cm176cm – 225cm2025, 2024, 2016, 2013, 2012, 2003

Season snowfall from Open-Meteo ERA5 reanalysis (~9 km). ENSO phase from NOAA CPC Oceanic Niño Index. Relative phase differences are more trustworthy than absolute cm totals. Source: NOAA CPC Oceanic Niño Index + Open-Meteo ERA5 via SnowSure season archive.

Local Reports

0 reports

How accurate is this forecast?

We verify every forecast against what actually fell — see the model-by-model results.

→

Frequently asked questions about Bigrock Mountain

How much snow is Bigrock Mountain getting this week?
No significant snow is forecast at Bigrock Mountain over the next 7 days.
What is the 14-day snow forecast for Bigrock Mountain?
The full 14-day forecast for Bigrock Mountain — the SnowSure™ blend and every model we track, day by day — is part of SnowSure Pro. The first 7 days are free on this page.
How accurate are SnowSure forecasts for Bigrock Mountain?
We verify every forecast against what actually fell and publish the results — see our forecast verification pages for model-by-model accuracy, updated continuously.