Ophir, Alaska · field elev 595 ft
Density Altitude at Ophir (Z17)
Ophir sits at 595 ft, and even a typical July afternoon (70 °F) only lifts density altitude to about 1,432 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 | −5.8 | −3,855 ft | 2.6 | −3,213 ft |
| February | 4.5 | −3,070 ft | 14.7 | −2,313 ft |
| March | 11.9 | −2,519 ft | 24.5 | −1,606 ft |
| April | 32.2 | −1,062 ft | 42.9 | −323 ft |
| May | 48.4 | 49 ft | 58.9 | 746 ft |
| June | 58.7 | 733 ft | 68.8 | 1,387 ft |
| July | 60.8 | 870 ft | 69.5 | 1,432 ft |
| August | 55.9 | 549 ft | 64.0 | 1,078 ft |
| September | 46.0 | −113 ft | 53.9 | 416 ft |
| October | 28.4 | −1,329 ft | 34.5 | −901 ft |
| November | 8.0 | −2,808 ft | 14.9 | −2,299 ft |
| December | −2.3 | −3,585 ft | 5.5 | −2,995 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 Z17
DENSITY ALTITUDE
Field elevation 595 ft — the air behaves like 1,464 ft.
- PRESSURE ALT
- 596 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
- A77 — Yankee Creek 2
Yankee Creek · elev 1,120 ft
- PPCT — Takotna
Takotna · elev 423 ft
- PAMC — Mc Grath
Mc Grath · elev 343 ft
- Z48 — Bear Creek 3
Bear Creek · elev 740 ft
- FLT — Flat
Flat · elev 343 ft
- PAFS — Nikolai
Nikolai · elev 447 ft
- SRV — Stony River 2
Stony River · elev 230 ft
- RDV — Red Devil
Red Devil · elev 181 ft
Frequently asked questions
How high does density altitude get at Z17 in summer?
On a typical July afternoon — around 70 °F at the nearest NOAA normals station — density altitude at Ophir reaches roughly 1,432 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 Z17 on an average day?
It swings with the seasons: from roughly −3,855 ft at the coldest month's average temperature to about 870 ft at the warmest month's — all from a constant field elevation of 595 ft. The month-by-month table above carries the full year.
What is the field elevation of Ophir?
595 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is Z17 (FAA), in Ophir, Alaska.