Altoona, Pennsylvania · field elev 1,503 ft
Density Altitude at Altoona/Blair County (KAOO)
Altoona/Blair County sits at 1,503 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 3,383 ft — heat still trims performance, but the field rarely turns high-and-hot.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 28.4 | −193 ft | 35.5 | 300 ft |
| February | 30.7 | −32 ft | 38.6 | 513 ft |
| March | 38.7 | 520 ft | 47.7 | 1,127 ft |
| April | 50.4 | 1,307 ft | 61.0 | 2,002 ft |
| May | 60.3 | 1,957 ft | 70.9 | 2,635 ft |
| June | 68.5 | 2,483 ft | 78.6 | 3,118 ft |
| July | 72.4 | 2,730 ft | 82.9 | 3,383 ft |
| August | 70.6 | 2,616 ft | 81.1 | 3,272 ft |
| September | 63.7 | 2,176 ft | 74.2 | 2,843 ft |
| October | 53.0 | 1,479 ft | 62.7 | 2,112 ft |
| November | 42.3 | 764 ft | 50.5 | 1,314 ft |
| December | 33.1 | 134 ft | 39.9 | 601 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 KAOO
DENSITY ALTITUDE
Field elevation 1,503 ft — the air behaves like 3,389 ft.
- PRESSURE ALT
- 1,504 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 Pennsylvania fields
- 6G6 — Cove Valley
Williamsburg · elev 1,156 ft
- KHMZ — Bedford County
Bedford · elev 1,162 ft
- 9G8 — Ebensburg
Ebensburg · elev 2,099 ft
- KJST — John Murtha Johnstown/Cambria County
Johnstown · elev 2,284 ft
- P17 — Greater Breezewood Regional
Breezewood · elev 1,345 ft
- 2G9 — Somerset County
Somerset · elev 2,275 ft
- N68 — Franklin County Regional
Chambersburg · elev 688 ft
- KPSB — Mid-State
Philipsburg · elev 1,948 ft
Frequently asked questions
How high does density altitude get at KAOO in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Altoona/Blair County reaches roughly 3,383 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 KAOO on an average day?
It swings with the seasons: from roughly −193 ft at the coldest month's average temperature to about 2,730 ft at the warmest month's — all from a constant field elevation of 1,503 ft. The month-by-month table above carries the full year.
What is the field elevation of Altoona/Blair County?
1,503 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KAOO (ICAO) / AOO (FAA), in Altoona, Pennsylvania.