Havana, Illinois · field elev 488 ft
Density Altitude at Havana Regional (9I0)
Havana Regional sits at 488 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 2,466 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 | 25.0 | −1,704 ft | 33.5 | −1,104 ft |
| February | 29.6 | −1,378 ft | 38.8 | −737 ft |
| March | 40.7 | −606 ft | 51.2 | 104 ft |
| April | 52.4 | 184 ft | 63.8 | 934 ft |
| May | 63.7 | 927 ft | 74.5 | 1,619 ft |
| June | 73.1 | 1,530 ft | 84.6 | 2,250 ft |
| July | 76.6 | 1,751 ft | 88.1 | 2,466 ft |
| August | 74.4 | 1,612 ft | 86.0 | 2,337 ft |
| September | 66.9 | 1,134 ft | 80.4 | 1,989 ft |
| October | 54.9 | 350 ft | 67.8 | 1,192 ft |
| November | 42.1 | −511 ft | 52.4 | 184 ft |
| December | 30.5 | −1,315 ft | 39.1 | −716 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 9I0
DENSITY ALTITUDE
Field elevation 488 ft — the air behaves like 2,459 ft.
- PRESSURE ALT
- 489 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
- KCTK — Ingersoll
Canton · elev 684 ft
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Pekin · elev 530 ft
- K06 — Greater Beardstown
Beardstown · elev 465 ft
- 5K4 — Schuy-Rush
Rushville · elev 665 ft
- KSPI — Abraham Lincoln Capital
Springfield · elev 598 ft
- KIJX — Jacksonville Municipal
Jacksonville · elev 624 ft
- KPIA — General Downing - Peoria International
Peoria · elev 661 ft
- KAAA — Logan County
Lincoln · elev 594 ft
Frequently asked questions
How high does density altitude get at 9I0 in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Havana Regional reaches roughly 2,466 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 9I0 on an average day?
It swings with the seasons: from roughly −1,704 ft at the coldest month's average temperature to about 1,751 ft at the warmest month's — all from a constant field elevation of 488 ft. The month-by-month table above carries the full year.
What is the field elevation of Havana Regional?
488 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 9I0 (FAA), in Havana, Illinois.