April 1 snowpack as a percent of the 1991–2020 median, in every strong El Niño winter since 1972 with data. Each dot is one winter; the black tick is the median. Regions are sorted wettest to driest.
| Region | 1972-73 | 1982-83 | 1991-92 | 1997-98 | 2009-10 | 2015-16 | 2023-24 (moderate) | Median of strong winters | Strong winters with data |
|---|---|---|---|---|---|---|---|---|---|
| Arizona Snowbowl | 247.0 | 195.0 | 167.0 | 148.0 | 166.0 | 58.0 | 112.0 | 166 | 6 |
| Taos, NM | 262.0 | 172.0 | 156.0 | 112.0 | 156.0 | 44.0 | 110.0 | 156 | 6 |
| White Mountains, AZ | 227.0 | 135.0 | 148.0 | 213.0 | 68.0 | 89.0 | 148 | 5 | |
| South Lake Tahoe | 147.0 | 242.0 | 55.0 | 161.0 | 93.0 | 128.0 | 112.0 | 138 | 6 |
| Mammoth, CA | 160.0 | 239.0 | 64.0 | 169.0 | 114.0 | 88.0 | 114.0 | 137 | 6 |
| North Lake Tahoe | 140.0 | 216.0 | 62.0 | 144.0 | 94.0 | 118.0 | 102.0 | 129 | 6 |
| Wolf Creek & San Juans, CO | 141.0 | 143.0 | 111.0 | 103.0 | 110.0 | 90.0 | 93.0 | 110 | 6 |
| Cottonwood Canyons, UT | 136.0 | 161.0 | 63.0 | 118.0 | 84.0 | 98.0 | 129.0 | 108 | 6 |
| Mt Hood, OR | 110.0 | 42.0 | 106.0 | 80.0 | 98.0 | 84.0 | 98 | 5 | |
| Park City & Deer Valley, UT | 75.0 | 124.0 | 94.0 | 101.0 | 130.0 | 98 | 4 | ||
| Summit County & Vail, CO | 91.0 | 119.0 | 97.0 | 96.0 | 80.0 | 109.0 | 119.0 | 96 | 6 |
| Jackson Hole & Tetons, WY | 97.0 | 127.0 | 66.0 | 104.0 | 64.0 | 95.0 | 98.0 | 96 | 6 |
| Sun Valley, ID | 95.0 | 168.0 | 70.0 | 96.0 | 81.0 | 119.0 | 92.0 | 96 | 6 |
| Big Sky, MT | 75.0 | 123.0 | 82.0 | 96.0 | 76.0 | 102.0 | 75.0 | 89 | 6 |
| Crystal & Paradise, WA | 73.0 | 92.0 | 76.0 | 105.0 | 78.0 | 84 | 4 | ||
| Mt Baker, WA | 79.0 | 77.0 | 91.0 | 61.0 | 79 | 3 | |||
| Stevens Pass, WA | 66.0 | 59.0 | 98.0 | 76.0 | 87.0 | 82.0 | 76 | 5 |