Skiing, month by month
Where the snow lies deep enough to ski, measured over ten winters, while the lifts run. 9 places, each month tested the same way.
- January 8 good
- February 8 good
- March 8 good
- April 5 good
- May 0 good
- June 0 good
- July 1 good
- August 1 good
- September 1 good
- October 0 good
- November 0 good
- December 4 good
How a month is tested for skiing
- A ski day has 30 cm of snow or more on the ground, read on the ski area's own slopes, halfway between its lowest and highest lift.
- A month is good where 20 or more of its days had that in 7 winters of 10 or more, and fair in 5 or 6.
- Only in the months the resort's lifts run for at least half of. Natural snow, measured over ten winters: the snow resorts make is not counted.
A test on measured figures, the same at every place and from every city: the same month always gives the same answer. It is "good" or "fair", and a month that passes neither is simply not listed. It is separate from the month's own verdict, which also weighs holidays and crowds. The snow is ERA5-Land's depth, which can read high: a ski place's months were checked against snow gauges where there are any.
Every place, every month
| Place | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| St. Anton | 31 | 28 | 31 | 30 | — | — | — | — | — | — | — | 31 |
| Valle Nevado | — | — | — | — | — | — | 31 | 31 | 30 | — | — | — |
| Chamonix | 31 | 28 | 31 | 30 | — | — | — | — | — | — | — | 31 |
| Niseko | 31 | 28 | 31 | — | — | — | — | — | — | — | — | — |
| Zermatt | 31 | 28 | 31 | 30 | — | — | — | — | — | — | — | 31 |
| Aspen | 31 | 28 | 31 | 30 | — | — | — | — | — | — | — | 20 |
| Jackson Hole | 31 | 28 | 31 | — | — | — | — | — | — | — | — | 31 |
| Lake Tahoe | 31 | 28 | 31 | 30 | — | — | — | — | — | — | — | — |
| Park City | 31 | 28 | 31 | — | — | — | — | — | — | — | — | 24 |
| Good | 8 | 8 | 8 | 5 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 4 |
A cell is good, fair or blank, and shows the days in the month that passed the test.
Measured on each ski area's own slopes, halfway up its lifts, not in the town below, which can hold half the snow. Ski areas from OpenSkiMap.org, data from OpenStreetMap contributors and Skimap.org (ODbL); snow depth from Copernicus ERA5-Land by Open-Meteo.com (CC BY 4.0), read halfway up each area's lifts.