Big Sky Snow History

Is Big Sky snowsure? Check out the Big Sky Snow History graphs below. Select any week of the year to see the typical Ski Conditions, Snowfall Amount and Temperature based on nowcast weather data over the last 11 years. Whether you prefer bluebird conditions, powder days in any weather or just reliable snow in guaranteed sub-zero temperatures you can easily find the best week to go.

This week in history: Big Sky normal weather and snow conditions during the second week of December at the middle elevation of the ski area at 2736m, based on historical averages over the last 10 years: At this time of year the typical freezing level (1243m) is far below the middle elevation of Big Sky. Snowy weather is typical. On average, expect three or four days with snowfall per week in Big Sky in the middle of December. Forecast model average snowfall for the week is 18cm. Pretty cold temperatures with the average maximum temperature in Big Sky in week two of December of just -8.5°C at the middle elevation and minimum temperatures typically falling to -10.6°C. On average, a couple of days per week will have some sunshine. Mainly light winds (average 27km/h) are unlikely to affect lift operations but the historical norm is for the mean wind to reach 30km/h two days per week. Sunny, calm and below freezing ideal weather days that follow fresh snow (bluebird powder days) occur on average one day during this week but bluebird days that don't have fresh snowfall occur on average two days during this week each year.

Big Sky Snow Conditions

Best ski days per week in Big Sky (2007 – 2018)

  • Top
    Lift
  • Mid
    Mountain
  • Bottom
    Lift
  • Best ski days:

  • Bluebird Powder day

    (Fresh snow, mostly sunny, light wind)

  • Powder day

    (Fresh snow, limited sun, any wind)

  • Bluebird day

    (Average snow, mostly sunny, light wind)

  • Very windy days:

  • (>30km/h)

Big Sky

Winter
Summer
  • Best ski days:

  • Bluebird Powder day

    (Fresh snow, mostly sunny, light wind)

  • Powder day

    (Fresh snow, limited sun, any wind)

  • Bluebird day

    (Average snow, mostly sunny, light wind)

  • Very windy days:

  • (>30km/h)

The most cherished days on the mountain in Big Sky are Bluebird Powder days when it is mostly sunny with light winds following very recent snowfall. weather conditions may prevail on Powder days when the visibility can be limited but the snow is significantly deep and fresh for keen powder-hounds. Bluebird days can suit many skiers that aren’t necessarily hunting powder but want to enjoy the snowy mountains in sunnier conditions and light winds.

Big Sky Snowfall

Average precipitation (snow/rain) in Big Sky (2007 – 2018)

  • Top
    Lift
  • Mid
    Mountain
  • Bottom
    Lift
  • Precipitation:

  • Snowfall amount

    (bar chart)

  • Days with significant snowfall.

    (>5cm)

  • Days with significant rainfall.

    (>5mm)

Big Sky

Winter
Summer
  • Precipitation:

  • Snowfall amount

    (bar chart)

  • Days with significant snowfall.

    (>5cm)

  • Days with significant rainfall.

    (>5mm)

The snowiest weeks of the year in Big Sky are shown but also bear in mind the number of days that it typically snows each week if you want regular fresh tracks. risk of a rainy day is shown but be sure to switch between elevations to see if lower lifts are rain affected or higher lifts remain snowy despite any rain further down the mountain.

Big Sky Temperature

Average temperature in Big Sky (2007 – 2018)

  • Top
    Lift
  • Mid
    Mountain
  • Bottom
    Lift
  • Average temperature:

  • Maximum

  • Minimum

  • Temperatures:

  • Above freezing

  • Below freezing

  • Freezing level:

  • Dashed line

Big Sky

Winter
Summer
Freezing level
  • Average temperature:

  • Maximum

  • Minimum

  • Temperatures:

  • Above freezing

  • Below freezing

  • Freezing level:

  • Dashed line

The highest and lowest temperatures averaged for each week of the year in Big Sky are shown. Check out the risk of freze-thaw conditions prevailing at different elevations for any given week. We also show the extremes of temperature (blue/red dots) that reveal the chance of unusually warm or cold conditions.

Big Sky snow history summary by month

Snowfall (per week)*Snowy days (per week)*
Snow in December19cm3.8 days
Snow in January14cm3.3 days
Snow in February20cm4.6 days
Snow in March23cm4.4 days
Snow in April28cm4.4 days

* Averages based on historical nowcast data