Rainy Pass, Alaska · field elev 1,900 ft
Density Altitude at Rainy Pass Lodge (6AK)
Rainy Pass Lodge sits at 1,900 ft, and even a typical July afternoon (64 °F) only lifts density altitude to about 2,709 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 | 5.9 | −1,315 ft | 12.0 | −867 ft |
| February | 13.5 | −758 ft | 21.7 | −169 ft |
| March | 16.7 | −527 ft | 26.9 | 198 ft |
| April | 29.7 | 394 ft | 39.5 | 1,067 ft |
| May | 42.5 | 1,271 ft | 52.5 | 1,937 ft |
| June | 51.6 | 1,877 ft | 61.6 | 2,529 ft |
| July | 55.7 | 2,146 ft | 64.4 | 2,709 ft |
| August | 52.2 | 1,917 ft | 60.4 | 2,452 ft |
| September | 43.1 | 1,311 ft | 50.2 | 1,785 ft |
| October | 28.4 | 303 ft | 35.2 | 774 ft |
| November | 14.2 | −707 ft | 20.8 | −233 ft |
| December | 8.0 | −1,160 ft | 14.4 | −693 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 6AK
DENSITY ALTITUDE
Field elevation 1,900 ft — the air behaves like 2,683 ft.
- PRESSURE ALT
- 1,901 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
- 8KA — Tatitna
Tatitna · elev 1,490 ft
- PAFL — Tin Creek
Farewell Lake · elev 1,185 ft
- PASW — Skwentna
Skwentna · elev 148 ft
- 01A — Purkeypile
Purkeypile · elev 2,041 ft
- PAFS — Nikolai
Nikolai · elev 447 ft
- PATK — Talkeetna
Talkeetna · elev 365 ft
- PAUO — Willow
Willow · elev 215 ft
- 2K5 — Telida
Telida · elev 650 ft
Frequently asked questions
How high does density altitude get at 6AK in summer?
On a typical July afternoon — around 64 °F at the nearest NOAA normals station — density altitude at Rainy Pass Lodge reaches roughly 2,709 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 6AK on an average day?
It swings with the seasons: from roughly −1,315 ft at the coldest month's average temperature to about 2,146 ft at the warmest month's — all from a constant field elevation of 1,900 ft. The month-by-month table above carries the full year.
What is the field elevation of Rainy Pass Lodge?
1,900 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 6AK (FAA), in Rainy Pass, Alaska.