Maricopa, Arizona · field elev 1,307 ft
Density Altitude at Ak-Chin Regional (A39)
Ak-Chin Regional sits at 1,307 ft, and even a typical July afternoon (109 °F) only lifts density altitude to about 4,700 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 | 52.8 | 1,224 ft | 69.0 | 2,274 ft |
| February | 56.4 | 1,461 ft | 72.9 | 2,521 ft |
| March | 62.3 | 1,845 ft | 80.2 | 2,977 ft |
| April | 69.5 | 2,306 ft | 88.2 | 3,469 ft |
| May | 78.4 | 2,866 ft | 97.4 | 4,023 ft |
| June | 87.8 | 3,444 ft | 107.1 | 4,595 ft |
| July | 93.3 | 3,777 ft | 108.9 | 4,700 ft |
| August | 92.3 | 3,717 ft | 107.3 | 4,607 ft |
| September | 85.7 | 3,316 ft | 102.3 | 4,314 ft |
| October | 72.9 | 2,521 ft | 91.2 | 3,651 ft |
| November | 60.4 | 1,722 ft | 78.1 | 2,847 ft |
| December | 51.4 | 1,131 ft | 67.5 | 2,179 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 A39
DENSITY ALTITUDE
Field elevation 1,307 ft — the air behaves like 4,706 ft.
- PRESSURE ALT
- 1,308 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
- KCGZ — Casa Grande Municipal
Casa Grande · elev 1,464 ft
- KCHD — Chandler Municipal
Chandler · elev 1,243 ft
- P19 — Stellar Airpark
Chandler · elev 1,179 ft
- E60 — Eloy Municipal
Eloy · elev 1,511 ft
- KIWA — Mesa Gateway
Phoenix · elev 1,384 ft
- P08 — Coolidge Municipal
Coolidge · elev 1,576 ft
- KPHX — Phoenix Sky Harbor International
Phoenix · elev 1,135 ft
- KFFZ — Falcon Field
Mesa · elev 1,394 ft
Frequently asked questions
How high does density altitude get at A39 in summer?
On a typical July afternoon — around 109 °F at the nearest NOAA normals station — density altitude at Ak-Chin Regional reaches roughly 4,700 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 A39 on an average day?
It swings with the seasons: from roughly 1,131 ft at the coldest month's average temperature to about 3,777 ft at the warmest month's — all from a constant field elevation of 1,307 ft. The month-by-month table above carries the full year.
What is the field elevation of Ak-Chin Regional?
1,307 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is A39 (FAA), in Maricopa, Arizona.