Houlton, Maine · field elev 489 ft
Density Altitude at Houlton International (KHUL)
Houlton International sits at 489 ft, and even a typical July afternoon (78 °F) only lifts density altitude to about 1,847 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 | 12.9 | −2,579 ft | 23.2 | −1,831 ft |
| February | 14.8 | −2,440 ft | 26.3 | −1,610 ft |
| March | 25.5 | −1,667 ft | 36.0 | −929 ft |
| April | 38.6 | −749 ft | 49.3 | −22 ft |
| May | 51.2 | 106 ft | 63.6 | 922 ft |
| June | 60.2 | 700 ft | 72.5 | 1,493 ft |
| July | 66.1 | 1,084 ft | 78.1 | 1,847 ft |
| August | 64.4 | 974 ft | 76.7 | 1,759 ft |
| September | 56.2 | 438 ft | 68.3 | 1,225 ft |
| October | 44.3 | −359 ft | 54.5 | 325 ft |
| November | 33.1 | −1,131 ft | 41.3 | −564 ft |
| December | 20.9 | −1,997 ft | 29.6 | −1,377 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 KHUL
DENSITY ALTITUDE
Field elevation 489 ft — the air behaves like 1,840 ft.
- PRESSURE ALT
- 490 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 Maine fields
- KPQI — Presque Isle International
Presque Isle · elev 534 ft
- KCAR — Caribou Municipal
Caribou · elev 620 ft
- KMLT — Millinocket Municipal
Millinocket · elev 408 ft
- KLRG — Lincoln Regional
Lincoln · elev 208 ft
- KPNN — Princeton Municipal
Princeton · elev 265 ft
- 66B — Gillespie Field
Meddybemps · elev 200 ft
- 7ME — Fort Kent Municipal
Fort Kent · elev 708 ft
- KFVE — Northern Aroostook Regional
Frenchville · elev 987 ft
Frequently asked questions
How high does density altitude get at KHUL in summer?
On a typical July afternoon — around 78 °F at the nearest NOAA normals station — density altitude at Houlton International reaches roughly 1,847 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 KHUL on an average day?
It swings with the seasons: from roughly −2,579 ft at the coldest month's average temperature to about 1,084 ft at the warmest month's — all from a constant field elevation of 489 ft. The month-by-month table above carries the full year.
What is the field elevation of Houlton International?
489 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHUL (ICAO) / HUL (FAA), in Houlton, Maine.