Las Vegas, Nevada · field elev 2,183 ft
Density Altitude at Harry Reid International (KLAS)
From a field elevation of 2,183 ft, a typical July afternoon at Harry Reid International (105 °F) raises density altitude to about 5,501 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 49.5 | 2,088 ft | 58.5 | 2,677 ft |
| February | 53.5 | 2,352 ft | 62.9 | 2,960 ft |
| March | 60.8 | 2,826 ft | 71.1 | 3,480 ft |
| April | 67.7 | 3,266 ft | 78.5 | 3,941 ft |
| May | 77.3 | 3,867 ft | 88.5 | 4,552 ft |
| June | 87.6 | 4,498 ft | 99.4 | 5,202 ft ▲ |
| July | 93.2 | 4,834 ft | 104.5 | 5,501 ft ▲ |
| August | 91.7 | 4,744 ft | 102.8 | 5,402 ft ▲ |
| September | 83.6 | 4,255 ft | 94.9 | 4,936 ft |
| October | 70.4 | 3,436 ft | 81.2 | 4,108 ft |
| November | 57.2 | 2,593 ft | 67.1 | 3,228 ft |
| December | 48.2 | 2,002 ft | 56.9 | 2,573 ft |
▲ above 5,000 ft · ⚠ above 8,000 ft. These are planning references at standard pressure and dry air — afternoon humidity and low pressure both push the real number higher. Run today's values below.
Run today’s numbers for KLAS
DENSITY ALTITUDE caution
Field elevation 2,183 ft — the air behaves like 5,530 ft.
- PRESSURE ALT
- 2,184 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
- —
- AIR DENSITY
- —
- WATER · GRAINS/LB
- —
For training and reference · verify with official sources and your POH before flight · no tool on this site renders a go / no-go judgment
Nearby Nevada fields
- KHND — Henderson Exec
Las Vegas · elev 2,491 ft
- KVGT — North Las Vegas
Las Vegas · elev 2,205 ft
- KBVU — Boulder City Municipal
Boulder City · elev 2,203 ft
- 0L7 — Jean
Jean · elev 2,835 ft
- 3L2 — Sky Ranch
Sandy Valley · elev 2,599 ft
- 0L9 — Echo Bay
Overton · elev 1,535 ft
- 1L3 — Searchlight
Searchlight · elev 3,413 ft
- 74P — Calvada Meadows
Pahrump · elev 2,726 ft
Frequently asked questions
How high does density altitude get at KLAS in summer?
On a typical July afternoon — around 105 °F at the nearest NOAA normals station — density altitude at Harry Reid International reaches roughly 5,501 ft at standard pressure. Hotter-than-normal days, low pressure, and humidity all push it higher, so run the day's actual numbers before flying.
What is the density altitude at KLAS on an average day?
It swings with the seasons: from roughly 2,002 ft at the coldest month's average temperature to about 4,834 ft at the warmest month's — all from a constant field elevation of 2,183 ft. The month-by-month table above carries the full year.
What is the field elevation of Harry Reid International?
2,183 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLAS (ICAO) / LAS (FAA), in Las Vegas, Nevada.