Jackson Hole & Grand Tetons
Data-driven analysis of 2 resorts — NWS forecast accuracy, storm rankings, and local knowledge, powered by SNOTEL ground truth.
The Headlines
Grand Targhee averaged 8.3"/storm-day — the region's top producer with 500" on the season.
The region's biggest drop: 29" at Jackson Hole on Jan 15, 2026.
NWS overpredicted snowfall at Grand Targhee by 100% this season. Grade: F.
Jackson Hole had the region's most accurate NWS forecast — grade A with only 75% error.
Resort Rankings
Sorted by calibrated season snowfall total. NWS grade reflects forecast accuracy.
| # | Resort | Season Total | Avg/Storm-Day | Best Storm | NWS Grade |
|---|---|---|---|---|---|
| 1 | Grand TargheeWY | 500" | 8.3"/day | 29" | F |
| 2 | Jackson HoleWY | 459" | 7.7"/day | 29" | A |
NWS Forecast Accuracy
How much did the National Weather Service overpredict snowfall vs. SNOTEL ground-truth measurements? Lower is better. This is the core StormDrop data advantage.
Storm Timeline
Monthly snowfall across the region — feast months vs. famine months.
What Locals Are Saying
Top community intel from TGR forum data. The best powder intel isn't in the forecast.
“Blower OB terrain: Known for pow laps; requires avalanche control cycles to be complete”
“Steve Baugh Bowl: Side-country access; multiple laps possible; north aspects preserve powder longer”
Don't Get Skunked Next Season
This season proved you can't trust the forecast alone. NWS overpredicted by up to 100% at Grand Targhee. StormDrop tells you what will actually fall — and where to go when your home mountain isn't delivering.