Grand Junction, Colorado · field elev 4,861 ft
Density Altitude at Grand Junction Regional (KGJT)
Grand Junction Regional is a genuine high-and-hot field: from 4,861 ft of elevation, a typical July afternoon (95 °F) pushes density altitude to about 8,149 ft — the airplane performs like it is 3,288 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 | 29.2 | 4,046 ft | 39.0 | 4,704 ft |
| February | 36.4 | 4,531 ft | 46.7 | 5,210 ft ▲ |
| March | 46.6 | 5,203 ft | 58.6 | 5,973 ft ▲ |
| April | 54.0 | 5,680 ft | 66.9 | 6,492 ft ▲ |
| May | 63.4 | 6,274 ft | 76.7 | 7,093 ft ▲ |
| June | 74.1 | 6,935 ft | 89.2 | 7,839 ft ▲ |
| July | 80.3 | 7,310 ft | 94.5 | 8,149 ft ⚠ |
| August | 77.4 | 7,135 ft | 90.8 | 7,933 ft ▲ |
| September | 68.5 | 6,591 ft | 82.0 | 7,412 ft ▲ |
| October | 54.5 | 5,712 ft | 67.1 | 6,504 ft ▲ |
| November | 41.2 | 4,849 ft | 52.1 | 5,559 ft ▲ |
| December | 30.1 | 4,107 ft | 39.1 | 4,711 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 KGJT
DENSITY ALTITUDE high DA
Field elevation 4,861 ft — the air behaves like 8,178 ft.
- PRESSURE ALT
- 4,863 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 Colorado fields
- D17 — Westwinds
Delta · elev 5,000 ft
- KAJZ — Blake Field
Delta · elev 5,193 ft
- KRIL — Rifle Garfield County
Rifle · elev 5,537 ft
- 7V2 — North Fork Valley
Paonia · elev 5,788 ft
- KMTJ — Montrose Regional
Montrose · elev 5,759 ft
- 99V — Crawford
Crawford · elev 6,470 ft
- KAIB — Hopkins Field
Nucla · elev 5,945 ft
- 4V0 — Rangely
Rangely · elev 5,278 ft
Frequently asked questions
How high does density altitude get at KGJT in summer?
On a typical July afternoon — around 95 °F at the nearest NOAA normals station — density altitude at Grand Junction Regional reaches roughly 8,149 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 KGJT on an average day?
It swings with the seasons: from roughly 4,046 ft at the coldest month's average temperature to about 7,310 ft at the warmest month's — all from a constant field elevation of 4,861 ft. The month-by-month table above carries the full year.
What is the field elevation of Grand Junction Regional?
4,861 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KGJT (ICAO) / GJT (FAA), in Grand Junction, Colorado.