Grundy Center, Iowa · field elev 1,075 ft
Density Altitude at Grundy Center Municipal (6K7)
Grundy Center Municipal sits at 1,075 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,861 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 | 17.4 | −1,513 ft | 26.1 | −890 ft |
| February | 21.7 | −1,204 ft | 30.7 | −567 ft |
| March | 34.2 | −323 ft | 44.1 | 355 ft |
| April | 47.1 | 557 ft | 58.7 | 1,325 ft |
| May | 59.3 | 1,364 ft | 70.4 | 2,079 ft |
| June | 69.7 | 2,034 ft | 80.0 | 2,682 ft |
| July | 72.7 | 2,224 ft | 82.9 | 2,861 ft |
| August | 70.2 | 2,066 ft | 80.9 | 2,738 ft |
| September | 62.8 | 1,592 ft | 75.1 | 2,376 ft |
| October | 50.2 | 764 ft | 61.9 | 1,533 ft |
| November | 35.8 | −212 ft | 45.4 | 443 ft |
| December | 23.6 | −1,068 ft | 32.1 | −469 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 6K7
DENSITY ALTITUDE
Field elevation 1,075 ft — the air behaves like 2,868 ft.
- PRESSURE ALT
- 1,076 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
- 27P — Eldora
Eldora · elev 975 ft
- 4C7 — Ackley Municipal
Ackley · elev 1,070 ft
- KMIW — Marshalltown Municipal
Marshalltown · elev 975 ft
- 8C6 — Traer Municipal
Traer · elev 892 ft
- KIFA — Iowa Falls Municipal
Iowa Falls · elev 1,137 ft
- KALO — Waterloo Regional
Waterloo · elev 873 ft
- K98 — Allison Municipal
Allison · elev 1,053 ft
- 8C5 — Toledo Municipal
Toledo · elev 960 ft
Frequently asked questions
How high does density altitude get at 6K7 in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Grundy Center Municipal reaches roughly 2,861 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 6K7 on an average day?
It swings with the seasons: from roughly −1,513 ft at the coldest month's average temperature to about 2,224 ft at the warmest month's — all from a constant field elevation of 1,075 ft. The month-by-month table above carries the full year.
What is the field elevation of Grundy Center Municipal?
1,075 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 6K7 (FAA), in Grundy Center, Iowa.