Amana, Iowa · field elev 712 ft
Density Altitude at Amana (C11)
Amana sits at 712 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,486 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 | 19.4 | −1,825 ft | 28.4 | −1,182 ft |
| February | 23.7 | −1,516 ft | 33.0 | −860 ft |
| March | 36.1 | −644 ft | 46.5 | 66 ft |
| April | 48.4 | 194 ft | 60.4 | 989 ft |
| May | 60.1 | 969 ft | 71.3 | 1,691 ft |
| June | 69.9 | 1,601 ft | 80.5 | 2,269 ft |
| July | 73.3 | 1,817 ft | 84.0 | 2,486 ft |
| August | 70.9 | 1,665 ft | 82.1 | 2,369 ft |
| September | 63.5 | 1,190 ft | 76.3 | 2,007 ft |
| October | 50.8 | 355 ft | 63.0 | 1,158 ft |
| November | 37.1 | −575 ft | 47.3 | 120 ft |
| December | 25.3 | −1,402 ft | 34.2 | −776 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 C11
DENSITY ALTITUDE
Field elevation 712 ft — the air behaves like 2,486 ft.
- PRESSURE ALT
- 713 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
- KIOW — Iowa City Municipal
Iowa City · elev 684 ft
- KTZT — Belle Plaine Municipal
Belle Plaine · elev 771 ft
- C17 — Marion
Marion · elev 861 ft
- KVTI — Vinton Veterans Meml Airpark
Vinton · elev 842 ft
- 8C4 — Mathews Meml
Tipton · elev 840 ft
- KAWG — Washington Municipal
Washington · elev 754 ft
- 8C5 — Toledo Municipal
Toledo · elev 960 ft
Frequently asked questions
How high does density altitude get at C11 in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Amana reaches roughly 2,486 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 C11 on an average day?
It swings with the seasons: from roughly −1,825 ft at the coldest month's average temperature to about 1,817 ft at the warmest month's — all from a constant field elevation of 712 ft. The month-by-month table above carries the full year.
What is the field elevation of Amana?
712 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is C11 (FAA), in Amana, Iowa.