Clarks Point, Alaska · field elev 80 ft
Density Altitude at Clarks Point (PFCL)
Clarks Point sits at 80 ft, and even a typical July afternoon (65 °F) only lifts density altitude to about 483 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 | 16.6 | −2,823 ft | 23.5 | −2,323 ft |
| February | 22.1 | −2,424 ft | 29.5 | −1,896 ft |
| March | 23.5 | −2,323 ft | 31.8 | −1,733 ft |
| April | 36.0 | −1,440 ft | 44.5 | −854 ft |
| May | 45.6 | −779 ft | 55.2 | −134 ft |
| June | 52.8 | −294 ft | 62.1 | 320 ft |
| July | 56.7 | −35 ft | 64.6 | 483 ft |
| August | 55.7 | −101 ft | 63.3 | 399 ft |
| September | 48.7 | −569 ft | 56.3 | −61 ft |
| October | 36.4 | −1,412 ft | 43.8 | −902 ft |
| November | 25.0 | −2,216 ft | 31.9 | −1,726 ft |
| December | 18.6 | −2,678 ft | 25.7 | −2,166 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 PFCL
DENSITY ALTITUDE
Field elevation 80 ft — the air behaves like 509 ft.
- PRESSURE ALT
- 81 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
- PADL — Dillingham
Dillingham · elev 82 ft
- PAMB — Manokotak
Manokotak · elev 107 ft
- PAOC — Portage Creek
Portage Creek · elev 129 ft
- Z25 — Tripod
Aleknagik · elev 225 ft
- 5A8 — Aleknagik /New
Aleknagik · elev 63 ft
- PAAV — Ekwok
Ekwok · elev 142 ft
- 76Z — Nakeen
Nakeen · elev 50 ft
- 5NK — Naknek
Naknek · elev 70 ft
Frequently asked questions
How high does density altitude get at PFCL in summer?
On a typical July afternoon — around 65 °F at the nearest NOAA normals station — density altitude at Clarks Point reaches roughly 483 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 PFCL on an average day?
It swings with the seasons: from roughly −2,823 ft at the coldest month's average temperature to about −35 ft at the warmest month's — all from a constant field elevation of 80 ft. The month-by-month table above carries the full year.
What is the field elevation of Clarks Point?
80 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PFCL (ICAO) / CLP (FAA), in Clarks Point, Alaska.