Port Alsworth, Alaska · field elev 288 ft
Density Altitude at Wilder Runway (PAKX)
Wilder Runway sits at 288 ft, and even a typical July afternoon (67 °F) only lifts density altitude to about 894 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 | 14.3 | −2,730 ft | 23.7 | −2,048 ft |
| February | 19.6 | −2,343 ft | 29.1 | −1,664 ft |
| March | 21.2 | −2,228 ft | 31.8 | −1,473 ft |
| April | 35.0 | −1,250 ft | 45.8 | −507 ft |
| May | 45.0 | −562 ft | 57.6 | 282 ft |
| June | 53.1 | −17 ft | 65.3 | 785 ft |
| July | 56.6 | 216 ft | 67.0 | 894 ft |
| August | 54.1 | 50 ft | 63.3 | 655 ft |
| September | 46.4 | −467 ft | 55.4 | 136 ft |
| October | 33.4 | −1,361 ft | 41.8 | −780 ft |
| November | 22.4 | −2,141 ft | 29.7 | −1,621 ft |
| December | 16.7 | −2,554 ft | 24.8 | −1,969 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 PAKX
DENSITY ALTITUDE
Field elevation 288 ft — the air behaves like 894 ft.
- PRESSURE ALT
- 289 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 Alaska fields
- PANO — Nondalton
Nondalton · elev 314 ft
- 4K0 — Pedro Bay
Pedro Bay · elev 84 ft
- PAIL — Iliamna
Iliamna · elev 192 ft
- PFKK — Kokhanok
Kokhanok · elev 115 ft
- PAIG — Igiugig
Igiugig · elev 90 ft
- 2AK — Lime Village
Lime Village · elev 545 ft
- PAKL — Kulik Lake
Kulik Lake · elev 717 ft
- NIN — Ninilchik
Ninilchik · elev 276 ft
Frequently asked questions
How high does density altitude get at PAKX in summer?
On a typical July afternoon — around 67 °F at the nearest NOAA normals station — density altitude at Wilder Runway reaches roughly 894 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 PAKX on an average day?
It swings with the seasons: from roughly −2,730 ft at the coldest month's average temperature to about 216 ft at the warmest month's — all from a constant field elevation of 288 ft. The month-by-month table above carries the full year.
What is the field elevation of Wilder Runway?
288 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PAKX (ICAO) / 05K (FAA), in Port Alsworth, Alaska.