Delta, Colorado · field elev 5,000 ft
Density Altitude at Westwinds (D17)
Westwinds is a genuine high-and-hot field: from 5,000 ft of elevation, a typical July afternoon (93 °F) pushes density altitude to about 8,230 ft — the airplane performs like it is 3,230 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 | 27.3 | 4,090 ft | 39.9 | 4,935 ft |
| February | 34.4 | 4,570 ft | 47.5 | 5,433 ft ▲ |
| March | 43.3 | 5,159 ft | 58.6 | 6,143 ft ▲ |
| April | 50.9 | 5,652 ft | 66.6 | 6,643 ft ▲ |
| May | 60.0 | 6,231 ft | 76.4 | 7,243 ft ▲ |
| June | 69.8 | 6,841 ft | 88.0 | 7,936 ft ▲ |
| July | 75.3 | 7,177 ft | 93.0 | 8,230 ft ⚠ |
| August | 72.7 | 7,018 ft | 89.8 | 8,042 ft ⚠ |
| September | 64.3 | 6,500 ft | 81.8 | 7,568 ft ▲ |
| October | 51.3 | 5,678 ft | 68.2 | 6,742 ft ▲ |
| November | 38.4 | 4,836 ft | 53.2 | 5,800 ft ▲ |
| December | 27.9 | 4,131 ft | 40.4 | 4,968 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 D17
DENSITY ALTITUDE high DA
Field elevation 5,000 ft — the air behaves like 8,230 ft.
- PRESSURE ALT
- 5,002 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
- KAJZ — Blake Field
Delta · elev 5,193 ft
- KMTJ — Montrose Regional
Montrose · elev 5,759 ft
- 99V — Crawford
Crawford · elev 6,470 ft
- 7V2 — North Fork Valley
Paonia · elev 5,788 ft
- KGJT — Grand Junction Regional
Grand Junction · elev 4,861 ft
- KAIB — Hopkins Field
Nucla · elev 5,945 ft
- KTEX — Telluride Regional
Telluride · elev 9,070 ft
- KRIL — Rifle Garfield County
Rifle · elev 5,537 ft
Frequently asked questions
How high does density altitude get at D17 in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Westwinds reaches roughly 8,230 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 D17 on an average day?
It swings with the seasons: from roughly 4,090 ft at the coldest month's average temperature to about 7,177 ft at the warmest month's — all from a constant field elevation of 5,000 ft. The month-by-month table above carries the full year.
What is the field elevation of Westwinds?
5,000 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is D17 (FAA), in Delta, Colorado.