Phoenix, Arizona · field elev 1,135 ft
Density Altitude at Phoenix Sky Harbor International (KPHX)
Phoenix Sky Harbor International sits at 1,135 ft, and even a typical July afternoon (107 °F) only lifts density altitude to about 4,353 ft — heat still trims performance, but the field rarely turns high-and-hot.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 56.8 | 1,275 ft | 67.6 | 1,974 ft |
| February | 59.9 | 1,477 ft | 70.8 | 2,178 ft |
| March | 66.3 | 1,891 ft | 78.1 | 2,637 ft |
| April | 73.2 | 2,329 ft | 85.5 | 3,094 ft |
| May | 82.0 | 2,879 ft | 94.5 | 3,641 ft |
| June | 91.4 | 3,454 ft | 104.2 | 4,218 ft |
| July | 95.5 | 3,701 ft | 106.5 | 4,353 ft |
| August | 94.4 | 3,635 ft | 105.1 | 4,270 ft |
| September | 89.2 | 3,320 ft | 100.4 | 3,993 ft |
| October | 77.4 | 2,593 ft | 89.2 | 3,320 ft |
| November | 65.1 | 1,814 ft | 76.5 | 2,537 ft |
| December | 55.8 | 1,209 ft | 66.2 | 1,884 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 KPHX
DENSITY ALTITUDE
Field elevation 1,135 ft — the air behaves like 4,382 ft.
- PRESSURE ALT
- 1,136 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 Arizona fields
- P19 — Stellar Airpark
Chandler · elev 1,179 ft
- KSDL — Scottsdale
Scottsdale · elev 1,510 ft
- KCHD — Chandler Municipal
Chandler · elev 1,243 ft
- KFFZ — Falcon Field
Mesa · elev 1,394 ft
- KGEU — Glendale Regional
Glendale · elev 1,071 ft
- KDVT — Phoenix Deer Valley
Phoenix · elev 1,478 ft
- KGYR — Phoenix Goodyear
Goodyear · elev 969 ft
- KIWA — Mesa Gateway
Phoenix · elev 1,384 ft
Frequently asked questions
How high does density altitude get at KPHX in summer?
On a typical July afternoon — around 107 °F at the nearest NOAA normals station — density altitude at Phoenix Sky Harbor International reaches roughly 4,353 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 KPHX on an average day?
It swings with the seasons: from roughly 1,209 ft at the coldest month's average temperature to about 3,701 ft at the warmest month's — all from a constant field elevation of 1,135 ft. The month-by-month table above carries the full year.
What is the field elevation of Phoenix Sky Harbor International?
1,135 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KPHX (ICAO) / PHX (FAA), in Phoenix, Arizona.