Farmington, New Mexico · field elev 5,507 ft
Density Altitude at Four Corners Regional (KFMN)
Four Corners Regional is a genuine high-and-hot field: from 5,507 ft of elevation, a typical July afternoon (93 °F) pushes density altitude to about 8,859 ft — the airplane performs like it is 3,352 ft above the field before the wheels roll.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 31.1 | 4,976 ft | 43.0 | 5,765 ft ▲ |
| February | 36.5 | 5,337 ft | 49.5 | 6,186 ft ▲ |
| March | 44.8 | 5,882 ft | 59.9 | 6,845 ft ▲ |
| April | 51.3 | 6,301 ft | 67.4 | 7,311 ft ▲ |
| May | 60.4 | 6,877 ft | 77.2 | 7,907 ft ▲ |
| June | 70.9 | 7,526 ft | 89.3 | 8,626 ft ⚠ |
| July | 77.1 | 7,901 ft | 93.3 | 8,859 ft ⚠ |
| August | 74.6 | 7,751 ft | 89.7 | 8,649 ft ⚠ |
| September | 66.3 | 7,243 ft | 82.1 | 8,201 ft ⚠ |
| October | 53.3 | 6,429 ft | 68.8 | 7,397 ft ▲ |
| November | 40.8 | 5,621 ft | 54.6 | 6,511 ft ▲ |
| December | 31.3 | 4,990 ft | 43.1 | 5,771 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 KFMN
DENSITY ALTITUDE high DA
Field elevation 5,507 ft — the air behaves like 8,841 ft.
- PRESSURE ALT
- 5,509 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 Mexico fields
- N19 — Aztec Municipal
Aztec · elev 5,882 ft
- 5V5 — Shiprock Airstrip
Shiprock · elev 5,273 ft
- 1V0 — Navajo Lake
Navajo Dam · elev 6,478 ft
- 0E8 — Crownpoint
Crownpoint · elev 6,696 ft
- E32 — Lindrith Airpark
Lindrith · elev 7,202 ft
- 24N — Jicarilla Apache Nation
Dulce · elev 7,618 ft
- NM2 — Cuba Landing Strip
Cuba · elev 6,840 ft
- KGUP — Gallup Municipal
Gallup · elev 6,473 ft
Frequently asked questions
How high does density altitude get at KFMN in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Four Corners Regional reaches roughly 8,859 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 KFMN on an average day?
It swings with the seasons: from roughly 4,976 ft at the coldest month's average temperature to about 7,901 ft at the warmest month's — all from a constant field elevation of 5,507 ft. The month-by-month table above carries the full year.
What is the field elevation of Four Corners Regional?
5,507 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFMN (ICAO) / FMN (FAA), in Farmington, New Mexico.