Birch Creek, Alaska · field elev 440 ft
Density Altitude at Birch Creek (PAAR)
Birch Creek sits at 440 ft, and even a typical July afternoon (73 °F) only lifts density altitude to about 1,478 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 | −15.7 | −4,828 ft | −7.4 | −4,176 ft |
| February | −7.8 | −4,207 ft | 3.2 | −3,364 ft |
| March | 1.1 | −3,523 ft | 16.5 | −2,377 ft |
| April | 26.7 | −1,643 ft | 41.8 | −591 ft |
| May | 47.0 | −237 ft | 59.9 | 620 ft |
| June | 59.3 | 581 ft | 72.3 | 1,420 ft |
| July | 61.0 | 692 ft | 73.2 | 1,478 ft |
| August | 54.2 | 245 ft | 66.3 | 1,036 ft |
| September | 41.5 | −611 ft | 53.0 | 165 ft |
| October | 20.4 | −2,094 ft | 28.6 | −1,509 ft |
| November | −2.8 | −3,821 ft | 4.9 | −3,236 ft |
| December | −9.1 | −4,308 ft | −1.4 | −3,714 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 PAAR
DENSITY ALTITUDE
Field elevation 440 ft — the air behaves like 1,465 ft.
- PRESSURE ALT
- 441 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
- PFYU — Fort Yukon
Fort Yukon · elev 447 ft
- PAWB — Beaver
Beaver · elev 365 ft
- PAVE — Venetie
Venetie · elev 574 ft
- PACE — Central
Central · elev 937 ft
- PACR — Circle City
Circle · elev 613 ft
- PACI — Chalkyitsik
Chalkyitsik · elev 549 ft
- CHP — Circle Hot Springs
Circle Hot Springs · elev 870 ft
- PFSV — Stevens Village
Stevens Village · elev 328 ft
Frequently asked questions
How high does density altitude get at PAAR in summer?
On a typical July afternoon — around 73 °F at the nearest NOAA normals station — density altitude at Birch Creek reaches roughly 1,478 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 PAAR on an average day?
It swings with the seasons: from roughly −4,828 ft at the coldest month's average temperature to about 692 ft at the warmest month's — all from a constant field elevation of 440 ft. The month-by-month table above carries the full year.
What is the field elevation of Birch Creek?
440 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PAAR (ICAO) / Z91 (FAA), in Birch Creek, Alaska.