Gustavus, Alaska · field elev 36 ft
Density Altitude at Gustavus (PAGS)
Gustavus sits at 36 ft, and even a typical July afternoon (63 °F) only lifts density altitude to about 318 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 | 26.4 | −2,171 ft | 32.1 | −1,767 ft |
| February | 28.4 | −2,029 ft | 35.7 | −1,515 ft |
| March | 31.4 | −1,817 ft | 39.9 | −1,224 ft |
| April | 38.8 | −1,300 ft | 48.7 | −624 ft |
| May | 46.0 | −807 ft | 56.5 | −102 ft |
| June | 51.9 | −409 ft | 61.4 | 220 ft |
| July | 54.8 | −215 ft | 62.9 | 318 ft |
| August | 54.3 | −249 ft | 62.7 | 305 ft |
| September | 48.4 | −644 ft | 56.5 | −102 ft |
| October | 40.1 | −1,210 ft | 47.1 | −732 ft |
| November | 31.9 | −1,781 ft | 37.8 | −1,369 ft |
| December | 28.7 | −2,007 ft | 33.8 | −1,648 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 PAGS
DENSITY ALTITUDE
Field elevation 36 ft — the air behaves like 325 ft.
- PRESSURE ALT
- 37 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
- PAOH — Hoonah
Hoonah · elev 22 ft
- PAJN — Juneau International
Juneau · elev 25 ft
- PAHN — Haines
Haines · elev 29 ft
- PAGY — Skagway
Skagway · elev 44 ft
- PASI — Sitka Rocky Gutierrez
Sitka · elev 27 ft
- AK76 — East Alsek River
Yakutat · elev 39 ft
- A57 — Alsek River
Yakutat · elev 53 ft
- 3AK — Dry Bay
Yakutat · elev 33 ft
Frequently asked questions
How high does density altitude get at PAGS in summer?
On a typical July afternoon — around 63 °F at the nearest NOAA normals station — density altitude at Gustavus reaches roughly 318 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 PAGS on an average day?
It swings with the seasons: from roughly −2,171 ft at the coldest month's average temperature to about −215 ft at the warmest month's — all from a constant field elevation of 36 ft. The month-by-month table above carries the full year.
What is the field elevation of Gustavus?
36 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PAGS (ICAO) / GST (FAA), in Gustavus, Alaska.