Whitefield, New Hampshire · field elev 1,072 ft
Density Altitude at Mount Washington Regional (KHIE)
Mount Washington Regional sits at 1,072 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 2,684 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 | 16.1 | −1,611 ft | 27.4 | −802 ft |
| February | 18.1 | −1,466 ft | 30.9 | −557 ft |
| March | 27.9 | −767 ft | 39.8 | 59 ft |
| April | 41.4 | 168 ft | 53.7 | 993 ft |
| May | 53.2 | 960 ft | 67.2 | 1,871 ft |
| June | 61.9 | 1,530 ft | 75.5 | 2,397 ft |
| July | 66.6 | 1,832 ft | 80.1 | 2,684 ft |
| August | 64.7 | 1,710 ft | 77.9 | 2,547 ft |
| September | 57.1 | 1,217 ft | 70.8 | 2,100 ft |
| October | 45.7 | 459 ft | 57.6 | 1,249 ft |
| November | 34.9 | −278 ft | 44.7 | 392 ft |
| December | 23.0 | −1,114 ft | 32.7 | −431 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 KHIE
DENSITY ALTITUDE
Field elevation 1,072 ft — the air behaves like 2,678 ft.
- PRESSURE ALT
- 1,073 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 New Hampshire fields
- 8B2 — Twin Mountain
Twin Mountain · elev 1,459 ft
- 1B5 — Franconia
Franconia · elev 975 ft
- 2G8 — Gorham
Gorham · elev 835 ft
- KBML — Berlin Regional
Berlin · elev 1,161 ft
- 5B9 — Dean Meml
Haverhill · elev 582 ft
- KERR — Errol
Errol · elev 1,248 ft
- 4C4 — Gifford Field
Colebrook · elev 1,017 ft
- 1P1 — Plymouth Municipal
Plymouth · elev 506 ft
Frequently asked questions
How high does density altitude get at KHIE in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Mount Washington Regional reaches roughly 2,684 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 KHIE on an average day?
It swings with the seasons: from roughly −1,611 ft at the coldest month's average temperature to about 1,832 ft at the warmest month's — all from a constant field elevation of 1,072 ft. The month-by-month table above carries the full year.
What is the field elevation of Mount Washington Regional?
1,072 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHIE (ICAO) / HIE (FAA), in Whitefield, New Hampshire.