Snow history
Ski Mystic at Deer Mountain Snow History
Ski Mystic at Deer Mountain averages 90.1″ of snow per season over 8 seasons (2018–19 to 2025–26). The snowiest was 2018–19 with 117.5″. This season has 4″ so far.
Average annual snowfall and season totals, 2018–19 to 2025–26.
Ski Mystic at Deer Mountain season snowfall totals by year
| Season | Total snowfall | vs average |
|---|---|---|
| 2025–26 | 67.5″ | 75% |
| 2024–25 | 77.9″ | 86% |
| 2023–24 | 75″ | 83% |
| 2022–23 | 82.8″ | 92% |
| 2021–22 | 112.7″ | 125% |
| 2020–21 | 73.5″ | 82% |
| 2019–20 | 113.9″ | 126% |
| 2018–19 · snowiest | 117.5″ | 130% |
| 2026–27 (to date) | 4″ | 36% |
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Average snowfall by month at Ski Mystic at Deer Mountain
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 11.4″ | 6.5″ | 10.8″ | 10″ | 9.4″ | 12.5″ | 19.3″ | 9.3″ |
Mean per month over 8 seasons; June–September average less than an inch and are omitted.
How Ski Mystic at Deer Mountain compares
Ski Mystic at Deer Mountain's 90.1″ average is below the 94″ average for other South Dakota resorts with history on this site (2 resorts). See the South Dakota snow report for current conditions across the state.
Where this history comes from
Season totals are built from the Open-Meteo historical weather archive at Ski Mystic at Deer Mountain's summit grid point (44.308, -103.818), summed October 1 to September 30. They are modeled, not resort-reported, so they are consistent across resorts but can differ from a resort's own stake readings. Current-season numbers on the Ski Mystic at Deer Mountain snow report use observed station data where a SNOTEL or ACIS station is linked.
Common questions
- How much snow does Ski Mystic at Deer Mountain get in a year?
- About 90.1″ per season on average (median 80.4″) across 8 completed seasons.
- What is the snowiest month at Ski Mystic at Deer Mountain?
- Apr, averaging 19.3″.
- What was Ski Mystic at Deer Mountain's biggest snow year?
- 2018–19, with 117.5″ for the season.
- Are these the resort's official snowfall numbers?
- No. Totals are modeled from the Open-Meteo historical archive at the resort's summit grid point, so they are comparable across resorts but can differ from marketing figures and summit stake readings.