Delta, Colorado · field elev 5,193 ft
Density Altitude at Blake Field (KAJZ)
Blake Field is a genuine high-and-hot field: from 5,193 ft of elevation, a typical July afternoon (93 °F) pushes density altitude to about 8,463 ft — the airplane performs like it is 3,270 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 | 4,330 ft | 39.9 | 5,174 ft ▲ |
| February | 34.4 | 4,809 ft | 47.5 | 5,670 ft ▲ |
| March | 43.3 | 5,397 ft | 58.6 | 6,379 ft ▲ |
| April | 50.9 | 5,890 ft | 66.6 | 6,879 ft ▲ |
| May | 60.0 | 6,467 ft | 76.4 | 7,478 ft ▲ |
| June | 69.8 | 7,076 ft | 88.0 | 8,170 ft ⚠ |
| July | 75.3 | 7,411 ft | 93.0 | 8,463 ft ⚠ |
| August | 72.7 | 7,253 ft | 89.8 | 8,276 ft ⚠ |
| September | 64.3 | 6,736 ft | 81.8 | 7,802 ft ▲ |
| October | 51.3 | 5,915 ft | 68.2 | 6,977 ft ▲ |
| November | 38.4 | 5,075 ft | 53.2 | 6,037 ft ▲ |
| December | 27.9 | 4,370 ft | 40.4 | 5,207 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 KAJZ
DENSITY ALTITUDE high DA
Field elevation 5,193 ft — the air behaves like 8,463 ft.
- PRESSURE ALT
- 5,195 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
- KMTJ — Montrose Regional
Montrose · elev 5,759 ft
- 7V2 — North Fork Valley
Paonia · elev 5,788 ft
- 99V — Crawford
Crawford · elev 6,470 ft
- KGJT — Grand Junction Regional
Grand Junction · elev 4,861 ft
- KAIB — Hopkins Field
Nucla · elev 5,945 ft
- KRIL — Rifle Garfield County
Rifle · elev 5,537 ft
- KTEX — Telluride Regional
Telluride · elev 9,070 ft
Frequently asked questions
How high does density altitude get at KAJZ in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Blake Field reaches roughly 8,463 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 KAJZ on an average day?
It swings with the seasons: from roughly 4,330 ft at the coldest month's average temperature to about 7,411 ft at the warmest month's — all from a constant field elevation of 5,193 ft. The month-by-month table above carries the full year.
What is the field elevation of Blake Field?
5,193 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KAJZ (ICAO) / AJZ (FAA), in Delta, Colorado.