Atlas · Colorado · CO
Buttermilk
9,900′ summit · 2,030′ vert · 470 acres · avg 200″/yr
Coin flip — Mar 1–15
Delivered 24″+ in 4 of the last 10 seasons
Over 20 winters: 4 of 20 · typical 18", most land 10"–21"
Before you book
This bet missed 6 of the last 10.
2 of the last 10 came in under 8″ — a bust, under a third of the bet.
Odds count natural snowfall only. At snowmaking-dependent resorts, early-season cover can be fine in a low-natural-snow year.
The season, window by window
The bet: 12″ of new snow per week, scaled to each window. Counted from real seasons — how our odds work.
Buttermilk · the shape of a typical winter
Typical new snow, window by window
The middle season — median new snow per window, counted from the last 20 winters. A picture of timing, not a forecast. Snow is streaky; hover any window for the usual range.
| Window | Bet | Delivered | Verdict | Typical | Biggest | Leanest |
|---|---|---|---|---|---|---|
| Nov 1–15 | 24″+ | 0 of 10 · 5 busts | Long shot | 12" | 24" 2014 | 0" 2025 · 2 of 20 |
| Nov 16–30 | 24″+ | 1 of 10 | Long shot | 14" | 33" 2024 | 1" 2012 |
| Dec 1–15 | 24″+ | 2 of 10 · 2 busts | Long shot | 18" | 43" 2007 | 4" 2006 |
| Dec 16–31 | 30″+ | 1 of 10 · 3 busts | Long shot | 14" | 56" 2021 | 4" 2011 |
| Jan 1–15 | 24″+ | 1 of 10 · 1 bust | Long shot | 12" | 41" 2017 | 4" 2013 |
| Jan 16–31 | 30″+ | 0 of 10 · 3 busts | Long shot | 18" | 26" 2014 | 5" 2022 |
| Feb 1–15 | 24″+ | 3 of 10 · 2 busts | Long shot | 15" | 31" 2008 | 6" 2022 |
| Feb 16–28/29 | 24″+ | 1 of 10 · 1 bust | Long shot | 17" | 27" 2022 | 5" 2025 |
| Mar 1–15 | 24″+ | 4 of 10 · 2 busts | Coin flip | 18" | 49" 2019 | 6" 2017 |
| Mar 16–31 | 30″+ | 1 of 10 · 2 busts | Long shot | 17" | 37" 2023 | 0" 2026 |
| Apr 1–15 | 24″+ | 2 of 10 | Long shot | 17" | 30" 2013 | 5" 2015 |
| Apr 16–30 | 24″+ | 1 of 10 | Long shot | 17" | 40" 2011 | 8" 2012 |
Biggest and leanest are the two ends of the same 20 winters Typical is counted from — the year is when it happened, most recent first where more than one season ties.
At the snow sensor
Reading the snow sensor…
Field notes
X Games home turf: immaculate parks, mellow gradients, and deceptively good learning terrain. For a strong rider it's a park day or a family day, full stop.
The fourth-day option on an Aspen trip, or the main event if park laps are the agenda. Uncrowded and modestly priced by Aspen standards — and the Cliffhouse tamales are a legitimate lunch destination.
Watch this window
We'll email you when Buttermilk's odds move on the Mar 1–15 window — and the quote gets recorded as it stands today, so we can be graded on it later.
Planning a whole season? See the season outlook.
These are historical odds from the last 20 winters — not a forecast. Inside 16 days of a trip, a forecast is the better instrument; beyond that, counting real seasons is the honest play. Every number on this page is quoted under methodology v1.2.0, the same math we grade ourselves against in public.