Anchorage, Alaska · field elev 143 ft
Density Altitude at Merrill Field (PAMR)
Merrill Field sits at 143 ft, and even a typical July afternoon (68 °F) only lifts density altitude to about 806 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 | 15.4 | −2,832 ft | 22.6 | −2,309 ft |
| February | 20.2 | −2,482 ft | 28.0 | −1,923 ft |
| March | 25.6 | −2,094 ft | 34.4 | −1,472 ft |
| April | 38.8 | −1,167 ft | 47.1 | −599 ft |
| May | 49.7 | −424 ft | 58.4 | 155 ft |
| June | 57.7 | 109 ft | 65.7 | 632 ft |
| July | 61.1 | 333 ft | 68.4 | 806 ft |
| August | 58.5 | 162 ft | 65.7 | 632 ft |
| September | 49.8 | −417 ft | 56.8 | 50 ft |
| October | 36.4 | −1,333 ft | 42.5 | −912 ft |
| November | 22.6 | −2,309 ft | 29.0 | −1,852 ft |
| December | 18.0 | −2,642 ft | 24.7 | −2,158 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 PAMR
DENSITY ALTITUDE
Field elevation 143 ft — the air behaves like 780 ft.
- PRESSURE ALT
- 144 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
- PALH — Lake Hood
Anchorage · elev 79 ft
- PANC — Ted Stevens Anchorage International
Anchorage · elev 151 ft
- Z40 — Goose Bay
Goose Bay · elev 78 ft
- PABV — Birchwood
Birchwood · elev 83 ft
- PAGQ — Big Lake
Big Lake · elev 162 ft
- 5HO — Hope
Hope · elev 194 ft
- PAWS — Wasilla
Wasilla · elev 354 ft
- AQY — Girdwood
Girdwood · elev 164 ft
Frequently asked questions
How high does density altitude get at PAMR in summer?
On a typical July afternoon — around 68 °F at the nearest NOAA normals station — density altitude at Merrill Field reaches roughly 806 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 PAMR on an average day?
It swings with the seasons: from roughly −2,832 ft at the coldest month's average temperature to about 333 ft at the warmest month's — all from a constant field elevation of 143 ft. The month-by-month table above carries the full year.
What is the field elevation of Merrill Field?
143 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PAMR (ICAO) / MRI (FAA), in Anchorage, Alaska.