Northern Rockies - U. S.
The ski areas of Idaho, Montana, and Wyoming vary in their snowfall, but most rely on cold weather rather than north exposure for snow preservation. The best snow months appear to be January and February, therefore spring conditions are more common in March than in Utah or Colorado. The weather is fairly well correlated to the Pacific Northwest, and more independent of Colorado, Utah, and California. Thus, some of these areas are worth consideration in seasons when drought afflicts areas to the south.
There are two tables below: The first contains all the statistics while the second contains summary information plus comments and analysis.
Color-coded areas link to my detailed Resort Guide published in Inside Tracks
or First Tracks Online.
Explanation of Column Headings
Home Page and Other Regions
|NORTHERN||Altitude||Season||Standard||6+ Inch||High Mths||Low Mths||Maximum||Direction of Exposure|
|ROCKIES (U. S.)||Range||Average||Deviation||Powder Days||GE 90 in.||LT 30 in.||Base Depth||North||East||West||South|
|Whitefish, Mont.†† 6,700††††||4,600-7,000||324||75||13.0%||12%||14%||114||15%||15%||15%||55%|
|†Schweitzer, Idaho† 4,700||3,994-6,400||278||75||11.1%||10%||21%||115||35%||45%||0%||20%|
|† Brundage, Idaho† 6,000||5,840-7,640||302||77||12.3%||13%||17%||N/A||20%||3%||56%||21%|
|†Bridger Bowl, Mont.†† 7,100††††||6,100-8,100||302||68||12.2%||7%||15%||97||30%||45%||0%||25%|
|†Big Sky, Mont.† 8,920||6,970-11,145||283||51||10.7%||2%||18%||68||37%||36%||2%||25%|
|† Jackson Hole, Wyo.†† 8,250††||6,311-10,450||367||89||15.6%||30%||10%||98||10%||60%||0%||30%|
|†Sun Valley, Idaho†† 8,800†||5,750-9,150||191||60||8.2%||1%||43%||74||55%||37%||0%||8%|
|†Teton Pass, Wyo.†† 8,000||N/A||267||68||10.5%||0%||27%||N/A||Mainly E and W, some N and S|
|†Grand Targhee, Wyo.†††† 8,000||8,000-10,200||465||97||19.0%||41%||4%||N/A||20%||0%||60%||20%|
|NORTHERN||Altitude||Season||Weather Restrictions, Powder Potential|
|ROCKIES (U. S.)||Range||Average||and Other Considerations||Best Time to Ski|
|Whitefish, Mont. 6,700||4,600-7,000||324||Most snowfall of any Montana area; good snowghost glades and some bowl skiing on upper mountain.||January/February for coverage, surface conditions, powder.|
|Schweitzer, Idaho 4,700||3,994-6,400||278||Upper mountain offers excellent tree skiing† Powder lasts in trees inside and outside area.||January/February for coverage, surface conditions, powder.|
|Brundage, Idaho 6,000||5,840-7,640||302||Primarily intermediate pitch, but nearly wall-to-wall well-spaced tree skiing†and low skier density for powder.||January/February for coverage, surface conditions, powder.|
|Bridger Bowl, Mont. 7,100||6,100-8,100||302||Good dumps, chutes and fabled expert terrain available for a short hike above area.† Frequent powder blow-in here.||January/February for coverage, surface conditions, powder.|
|Big Sky, Mont. 8,920||6,970-11,145||283||Tram to peak gives it highest vertical drop of any U.S. area but you canít ski it in one run.† This upper extreme terrain likely to be closed during storms and avalanche control, but gets good powder blow-in. Lower mountain usually has good surfaces.||Mid-January to mid-March for Lone Peak coverage.† Sunny spring exposures, but highest and coldest terrain in region aids snow preservation.|
|Jackson Hole, Wyo. 8,250||6,311-10,450||368||Some closures for wind and avalanche.† Outstanding long and steep bowls with low skier density.† In March steep ungroomed runs like the south-facing Hobacks will turn into cement with just a little sun.||January/early February for snowfall and to avoid warm weather exposures.|
|Sun Valley, Idaho 8,800||5,750-9,150||191||Bowls can close for visibility.† Deep powder a rarity, good for euro-tanning.† Larger storms here come from the south. Snowfall correlates more with California than the Pacific Northwest.† Extensive snowmaking required on lower mountain.||January/February, but wait for high snow year to ensure skiing entire area.|
|Teton Pass, Wyo. 8,000||N/A||268||One of most consistent deep powder backcountry touring areas in U.S., snowfall amounts much higher above highway.† Easy highway access for shuttles. Long season.||Same as Jackson for powder plus excellent touring in spring.|
|Grand Targhee, Wyo. 8,000||8,000-10,200||465||The best powder area outside of Utah.† Low skier density and, a snowcat operation.† Lowest standard deviation of any area; over 350 inches snowfall in 1977 and 1981, the two driest seasons in the West.||December-February. January is highest snow month.|
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