Waverly, Iowa · field elev 992 ft
Density Altitude at Waverly Municipal (C25)
Waverly Municipal sits at 992 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,754 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 | 16.1 | −1,712 ft | 24.8 | −1,087 ft |
| February | 20.3 | −1,408 ft | 29.2 | −776 ft |
| March | 33.4 | −482 ft | 42.8 | 164 ft |
| April | 46.6 | 420 ft | 57.6 | 1,151 ft |
| May | 58.9 | 1,236 ft | 70.0 | 1,951 ft |
| June | 69.1 | 1,894 ft | 79.6 | 2,555 ft |
| July | 72.2 | 2,091 ft | 82.8 | 2,754 ft |
| August | 69.9 | 1,945 ft | 80.9 | 2,636 ft |
| September | 62.4 | 1,463 ft | 74.5 | 2,236 ft |
| October | 49.6 | 622 ft | 61.0 | 1,373 ft |
| November | 35.0 | −371 ft | 44.3 | 265 ft |
| December | 22.7 | −1,236 ft | 30.9 | −657 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 C25
DENSITY ALTITUDE
Field elevation 992 ft — the air behaves like 2,766 ft.
- PRESSURE ALT
- 993 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
- KALO — Waterloo Regional
Waterloo · elev 873 ft
- K98 — Allison Municipal
Allison · elev 1,053 ft
- KCCY — Northeast Iowa Regional
Charles City · elev 1,125 ft
- 1Y5 — New Hampton Municipal
New Hampton · elev 1,173 ft
- KOLZ — Oelwein Municipal
Oelwein · elev 1,076 ft
- 4C7 — Ackley Municipal
Ackley · elev 1,070 ft
- 6K7 — Grundy Center Municipal
Grundy Center · elev 1,075 ft
- KIIB — James H Connell Field At Independence Municipal
Independence · elev 979 ft
Frequently asked questions
How high does density altitude get at C25 in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Waverly Municipal reaches roughly 2,754 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 C25 on an average day?
It swings with the seasons: from roughly −1,712 ft at the coldest month's average temperature to about 2,091 ft at the warmest month's — all from a constant field elevation of 992 ft. The month-by-month table above carries the full year.
What is the field elevation of Waverly Municipal?
992 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is C25 (FAA), in Waverly, Iowa.