Aleknagik, Alaska · field elev 225 ft
Density Altitude at Tripod (Z25)
Tripod sits at 225 ft, and even a typical July afternoon (65 °F) only lifts density altitude to about 662 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 | 16.6 | −2,641 ft | 23.5 | −2,141 ft |
| February | 22.1 | −2,242 ft | 29.5 | −1,714 ft |
| March | 23.5 | −2,141 ft | 31.8 | −1,552 ft |
| April | 36.0 | −1,259 ft | 44.5 | −674 ft |
| May | 45.6 | −599 ft | 55.2 | 45 ft |
| June | 52.8 | −115 ft | 62.1 | 499 ft |
| July | 56.7 | 144 ft | 64.6 | 662 ft |
| August | 55.7 | 78 ft | 63.3 | 577 ft |
| September | 48.7 | −389 ft | 56.3 | 118 ft |
| October | 36.4 | −1,231 ft | 43.8 | −722 ft |
| November | 25.0 | −2,034 ft | 31.9 | −1,545 ft |
| December | 18.6 | −2,495 ft | 25.7 | −1,984 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 Z25
DENSITY ALTITUDE
Field elevation 225 ft — the air behaves like 688 ft.
- PRESSURE ALT
- 226 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
- 5A8 — Aleknagik /New
Aleknagik · elev 63 ft
- PADL — Dillingham
Dillingham · elev 82 ft
- PAMB — Manokotak
Manokotak · elev 107 ft
- PFCL — Clarks Point
Clarks Point · elev 80 ft
- PAOC — Portage Creek
Portage Creek · elev 129 ft
- PAAV — Ekwok
Ekwok · elev 142 ft
- PANW — New Stuyahok
New Stuyahok · elev 371 ft
- PAJZ — Koliganek
Koliganek · elev 272 ft
Frequently asked questions
How high does density altitude get at Z25 in summer?
On a typical July afternoon — around 65 °F at the nearest NOAA normals station — density altitude at Tripod reaches roughly 662 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 Z25 on an average day?
It swings with the seasons: from roughly −2,641 ft at the coldest month's average temperature to about 144 ft at the warmest month's — all from a constant field elevation of 225 ft. The month-by-month table above carries the full year.
What is the field elevation of Tripod?
225 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is Z25 (FAA), in Aleknagik, Alaska.