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PeakCam

Season 2026-27 · SNOTEL-measured

Big Sky Resort snow history

Through Oct 18, the Big Sky Resort SNOTEL station (Lone Mountain) has measured 4 in. of snow since Oct 1, 56% of the 30-winter normal to date, 0 powder days (8 in. or more); a year ago it had 8 in.

Measured at the Lone Mountain SNOTEL station (8,820 ft), synced every six hours.

This season at a glance

Snow since Oct 1
4 in.
18 days measured · 2 snow days
Percent of normal to date
56%
of the 24-winter mean, 7.2 in. · 54% of the last 10
Powder days
0
8 in. or more in a day
Deepest base
4 in.
Oct 11 · now 0 in.
Same day last season
8 in.
2025-26: 0 powder days, base 5 in. · this season -4 in.
Last 7 days
0 in.
falling · the 7 before: 4 in.

Snowfall so far vs normal

Band: the middle half of the last 24 winters at this station.

Cumulative measured snowfall for 2026-27: 4 inches by 2026-10-19, against a 24-winter mean of 7.2 inches by the same day (middle half 2.8 to 8.5).050100150200OctNovDecJanFebMarAprMayJuninches since Oct 1
2026-27 measured 2025-26 24-winter mean last 10 winters middle half of winters (p25–p75)

Cumulative measured snowfall for 2026-27: 4 inches by 2026-10-19, against a 24-winter mean of 7.2 inches by the same day (middle half 2.8 to 8.5).

The last 9 seasons

Measured snowfall, newest first. Powder day = 8 in. or more in a day.

SeasonSnowfallSnow daysPowder days
2025-26365 days measured141 in.513
2024-25365 days measured175 in.692
2023-24366 days measured163 in.603
2022-23365 days measured181 in.642
2021-22365 days measured184 in.744
2020-21365 days measured169 in.682
2019-20366 days measured182 in.665
2018-19365 days measured166 in.662
2017-18365 days measured190 in.671

A typical winter, month by month

30-winter averages; the last ten winters marked.

Average monthly snowfall, 30 winters, with the last ten winters marked01530Oct15Nov23Dec26Jan22Feb23Mar27Apr25May14Jun4Jul0Aug0Sep2
30-winter average, inches last ten winters
MonthAvg snowfallLast 10 winters
Oct14.8 in.14.1 in.(95%)
Nov23 in.22.9 in.(100%)
Dec25.8 in.24.1 in.(93%)
Jan22 in.22 in.(100%)
Feb23.4 in.24.8 in.(106%)
Mar26.5 in.24.7 in.(93%)
Apr24.8 in.24 in.(97%)
May13.8 in.14 in.(101%)
Jun3.6 in.2.3 in.(64%)
Jul0.1 in.0 in.(0%)
Aug0.1 in.0 in.(0%)
Sep2.4 in.1.8 in.(75%)
  • Jun: The last ten winters averaged 2.3 in. in Jun, 36% below the 30-winter normal of 3.6 in.; both are shown.
  • Jul: The last ten winters averaged 0 in. in Jul, 100% below the 30-winter normal of 0.1 in.; both are shown.
  • Aug: The last ten winters averaged 0 in. in Aug, 100% below the 30-winter normal of 0.1 in.; both are shown.
  • Sep: The last ten winters averaged 1.8 in. in Sep, 25% below the 30-winter normal of 2.4 in.; both are shown.

How to read this page

Daily new snow is the positive change in snow depth at the station from one day to the next, after PeakCam’s quality control. Settling and melt make it a floor on what fell, never a ceiling, so a season total here will read lower than a resort’s own snowfall figure. A snow day is one inch or more; a powder day is 8 in. or more, the same threshold as the powder alerts.

The normal band is the station’s own: the middle half of the 24 most recent complete winters, with the mean dashed. The recent-decade line uses only the last 10; when the two disagree by more than 10% the page says so rather than picking one. Percent of normal on the resort page is a different number (snow water equivalent against the 1991–2020 median). How the history and normals are built.