Spring 1991 season
61 expeditions, of which 30 put someone on the summit. 106 summits (93 by members, 13 by hired staff) and 8 deaths, among 492 members and 28 hired staff recorded.
Summits count member records: someone who summited twice on one expedition counts once, someone on two expeditions in the season counts twice. Claimed (unrecognised) ascents are excluded and disputed ones included, as in the database's own statistics. Hired staff are only recorded when they went above base camp.
First ascents
Busiest summit days
| Date | Peak | Summits |
|---|---|---|
| 27th May 1991 | Cho Oyu | 14 |
| 15th May 1991 | Everest | 13 |
| 9th May 1991 | Cho Oyu | 8 |
| 8th May 1991 | Cho Oyu | 7 |
| 10th May 1991 | Dhaulagiri I | 5 |
| 13th May 1991 | Dhaulagiri I | 5 |
| 22nd April 1991 | Cho Oyu | 4 |
| 8th May 1991 | Everest | 4 |
| 27th May 1991 | Everest | 4 |
| 10th April 1991 | Boktoh | 3 |
Peaks
| Peak | Height | Expeditions | Successful | Summits | Deaths |
|---|---|---|---|---|---|
| Everest | 8849 | 16 | 9 | 30 | 2 |
| Cho Oyu | 8188 | 7 | 6 | 33 | 1 |
| Ama Dablam | 6814 | 6 | 1 | 1 | 0 |
| Manaslu | 8163 | 4 | 1 | 3 | 2 |
| Makalu | 8485 | 3 | 0 | 0 | 0 |
| Dhaulagiri I | 8167 | 2 | 2 | 11 | 0 |
| Kangchenjunga | 8586 | 2 | 2 | 8 | 3 |
| Annapurna I | 8091 | 2 | 0 | 0 | 0 |
| Bhrikuti | 6476 | 2 | 0 | 0 | 0 |
| Baruntse | 7152 | 1 | 1 | 5 | 0 |
| Api Main | 7132 | 1 | 1 | 3 | 0 |
| Boktoh | 6114 | 1 | 1 | 3 | 0 |
| Kangchenjunga South | 8476 | 1 | 1 | 2 | 0 |
| Makalu II | 7678 | 1 | 1 | 2 | 0 |
| Pumori | 7138 | 1 | 1 | 2 | 0 |
| Kangchenjunga Central | 8473 | 1 | 1 | 1 | 0 |
| Kusum Kanguru | 6370 | 1 | 1 | 1 | 0 |
| Talung | 7349 | 1 | 1 | 1 | 0 |
| Annapurna IV | 7525 | 1 | 0 | 0 | 0 |
| Annapurna South | 7219 | 1 | 0 | 0 | 0 |
| Ganchenpo | 6378 | 1 | 0 | 0 | 0 |
| Jannu East | 7460 | 1 | 0 | 0 | 0 |
| Kanjeralwa | 6612 | 1 | 0 | 0 | 0 |
| Kotang | 6148 | 1 | 0 | 0 | 0 |
| Lobuche East | 6119 | 1 | 0 | 0 | 0 |
| Tilicho | 7134 | 1 | 0 | 0 | 0 |