Delta Junction, Alaska · field elev 1,150 ft
Density Altitude at Delta Junction (D66)
Delta Junction sits at 1,150 ft, and even a typical July afternoon (72 °F) only lifts density altitude to about 2,266 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 | −5.2 | −3,102 ft | 3.0 | −2,480 ft |
| February | 3.4 | −2,450 ft | 13.6 | −1,695 ft |
| March | 12.7 | −1,761 ft | 26.9 | −740 ft |
| April | 32.6 | −341 ft | 46.5 | 610 ft |
| May | 47.1 | 650 ft | 62.1 | 1,639 ft |
| June | 57.3 | 1,326 ft | 71.0 | 2,209 ft |
| July | 59.6 | 1,476 ft | 71.9 | 2,266 ft |
| August | 54.0 | 1,109 ft | 66.0 | 1,890 ft |
| September | 42.4 | 333 ft | 54.1 | 1,116 ft |
| October | 24.0 | −945 ft | 32.6 | −341 ft |
| November | 3.6 | −2,435 ft | 11.6 | −1,841 ft |
| December | −2.1 | −2,865 ft | 6.1 | −2,248 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 D66
DENSITY ALTITUDE
Field elevation 1,150 ft — the air behaves like 2,272 ft.
- PRESSURE ALT
- 1,151 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
- 5BK — Black Rapids
Black Rapids · elev 2,125 ft
- PAAN — Gold King Creek
Fairbanks · elev 1,720 ft
- 95Z — Bradley Sky-Ranch
North Pole · elev 483 ft
- PAXK — Paxson
Paxson · elev 2,653 ft
- PAFA — Fairbanks International
Fairbanks · elev 439 ft
- 9AK — Totatlanika River
Totatlanika River · elev 2,717 ft
- TSG — Tanacross
Tanacross · elev 1,559 ft
- 2Z3 — Eva Creek
Eva Creek · elev 2,817 ft
Frequently asked questions
How high does density altitude get at D66 in summer?
On a typical July afternoon — around 72 °F at the nearest NOAA normals station — density altitude at Delta Junction reaches roughly 2,266 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 D66 on an average day?
It swings with the seasons: from roughly −3,102 ft at the coldest month's average temperature to about 1,476 ft at the warmest month's — all from a constant field elevation of 1,150 ft. The month-by-month table above carries the full year.
What is the field elevation of Delta Junction?
1,150 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is D66 (FAA), in Delta Junction, Alaska.