Aspen, Colorado · field elev 7,838 ft
Density Altitude at Aspen-Pitkin County/Sardy Field (KASE)
Aspen-Pitkin County/Sardy Field is a genuine high-and-hot field: from 7,838 ft of elevation, a typical July afternoon (82 °F) pushes density altitude to about 11,025 ft — the airplane performs like it is 3,187 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 | 21.7 | 7,235 ft | 34.6 | 8,090 ft ⚠ |
| February | 25.2 | 7,470 ft | 38.0 | 8,311 ft ⚠ |
| March | 33.5 | 8,018 ft | 46.3 | 8,843 ft ⚠ |
| April | 41.3 | 8,524 ft | 54.7 | 9,370 ft ⚠ |
| May | 50.0 | 9,077 ft | 65.0 | 10,002 ft ⚠ |
| June | 59.6 | 9,673 ft | 77.1 | 10,726 ft ⚠ |
| July | 65.2 | 10,015 ft | 82.2 | 11,025 ft ⚠ |
| August | 63.3 | 9,899 ft | 79.5 | 10,867 ft ⚠ |
| September | 56.1 | 9,457 ft | 72.3 | 10,441 ft ⚠ |
| October | 44.4 | 8,722 ft | 59.7 | 9,679 ft ⚠ |
| November | 32.0 | 7,920 ft | 45.2 | 8,773 ft ⚠ |
| December | 21.8 | 7,241 ft | 34.3 | 8,071 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 KASE
DENSITY ALTITUDE high DA
Field elevation 7,838 ft — the air behaves like 11,013 ft.
- PRESSURE ALT
- 7,840 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
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- AIR DENSITY INDEX
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- AIR DENSITY
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- WATER · GRAINS/LB
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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
- KEGE — Eagle County Regional
Eagle · elev 6,547 ft
- KLXV — Lake County
Leadville · elev 9,934 ft
- KGWS — Kgws Sumers Airpark
Glenwood Springs · elev 5,916 ft
- KGUC — Gunnison-Crested Butte Regional
Gunnison · elev 7,680 ft
- KAEJ — Central Colorado Regional
Buena Vista · elev 7,950 ft
- 7V2 — North Fork Valley
Paonia · elev 5,788 ft
- KRIL — Rifle Garfield County
Rifle · elev 5,537 ft
- 99V — Crawford
Crawford · elev 6,470 ft
Frequently asked questions
How high does density altitude get at KASE in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Aspen-Pitkin County/Sardy Field reaches roughly 11,025 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 KASE on an average day?
It swings with the seasons: from roughly 7,235 ft at the coldest month's average temperature to about 10,015 ft at the warmest month's — all from a constant field elevation of 7,838 ft. The month-by-month table above carries the full year.
What is the field elevation of Aspen-Pitkin County/Sardy Field?
7,838 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KASE (ICAO) / ASE (FAA), in Aspen, Colorado.