Peoria, Illinois · field elev 661 ft
Density Altitude at General Downing - Peoria International (KPIA)
General Downing - Peoria International sits at 661 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 2,566 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 | 25.6 | −1,444 ft | 33.6 | −881 ft |
| February | 30.0 | −1,133 ft | 38.7 | −528 ft |
| March | 41.4 | −343 ft | 51.2 | 319 ft |
| April | 52.9 | 432 ft | 63.7 | 1,140 ft |
| May | 63.5 | 1,127 ft | 74.2 | 1,812 ft |
| June | 72.8 | 1,723 ft | 83.2 | 2,375 ft |
| July | 76.3 | 1,944 ft | 86.3 | 2,566 ft |
| August | 74.5 | 1,831 ft | 84.6 | 2,461 ft |
| September | 67.4 | 1,379 ft | 78.4 | 2,076 ft |
| October | 54.9 | 564 ft | 65.4 | 1,250 ft |
| November | 41.9 | −309 ft | 50.8 | 292 ft |
| December | 30.9 | −1,070 ft | 38.5 | −542 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 KPIA
DENSITY ALTITUDE
Field elevation 661 ft — the air behaves like 2,547 ft.
- PRESSURE ALT
- 662 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 Illinois fields
- 3MY — Mount Hawley Auxiliary
Peoria · elev 793 ft
- C15 — Pekin Municipal
Pekin · elev 530 ft
- KCTK — Ingersoll
Canton · elev 684 ft
- 2C6 — Tri-County
Yates City · elev 661 ft
- C75 — Marshall County
Lacon · elev 585 ft
- 9I0 — Havana Regional
Havana · elev 488 ft
- KAAA — Logan County
Lincoln · elev 594 ft
- KEZI — Kewanee Municipal
Kewanee · elev 858 ft
Frequently asked questions
How high does density altitude get at KPIA in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at General Downing - Peoria International reaches roughly 2,566 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 KPIA on an average day?
It swings with the seasons: from roughly −1,444 ft at the coldest month's average temperature to about 1,944 ft at the warmest month's — all from a constant field elevation of 661 ft. The month-by-month table above carries the full year.
What is the field elevation of General Downing - Peoria International?
661 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KPIA (ICAO) / PIA (FAA), in Peoria, Illinois.