Iowa City, Iowa · field elev 684 ft
Density Altitude at Iowa City Municipal (KIOW)
Iowa City Municipal sits at 684 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 2,563 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 | 22.8 | −1,615 ft | 30.9 | −1,041 ft |
| February | 27.0 | −1,316 ft | 35.5 | −721 ft |
| March | 39.5 | −445 ft | 49.5 | 233 ft |
| April | 51.4 | 360 ft | 62.6 | 1,097 ft |
| May | 62.6 | 1,097 ft | 73.4 | 1,789 ft |
| June | 72.4 | 1,726 ft | 82.6 | 2,366 ft |
| July | 75.8 | 1,941 ft | 85.8 | 2,563 ft |
| August | 73.5 | 1,796 ft | 83.8 | 2,440 ft |
| September | 65.8 | 1,304 ft | 77.5 | 2,048 ft |
| October | 53.1 | 473 ft | 64.1 | 1,194 ft |
| November | 39.8 | −424 ft | 49.2 | 213 ft |
| December | 28.2 | −1,231 ft | 36.3 | −665 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 KIOW
DENSITY ALTITUDE
Field elevation 684 ft — the air behaves like 2,576 ft.
- PRESSURE ALT
- 685 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 Iowa fields
- KCID — The Eastern Iowa
Cedar Rapids · elev 869 ft
- C11 — Amana
Amana · elev 712 ft
- 8C4 — Mathews Meml
Tipton · elev 840 ft
- KAWG — Washington Municipal
Washington · elev 754 ft
- C17 — Marion
Marion · elev 861 ft
- KMUT — Muscatine Municipal
Muscatine · elev 547 ft
- KTZT — Belle Plaine Municipal
Belle Plaine · elev 771 ft
- KMXO — Monticello Regional
Monticello · elev 833 ft
Frequently asked questions
How high does density altitude get at KIOW in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Iowa City Municipal reaches roughly 2,563 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 KIOW on an average day?
It swings with the seasons: from roughly −1,615 ft at the coldest month's average temperature to about 1,941 ft at the warmest month's — all from a constant field elevation of 684 ft. The month-by-month table above carries the full year.
What is the field elevation of Iowa City Municipal?
684 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KIOW (ICAO) / IOW (FAA), in Iowa City, Iowa.