Rockwell City, Iowa · field elev 1,216 ft
Density Altitude at Rockwell City Municipal (2Y4)
Rockwell City Municipal sits at 1,216 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 3,033 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 | −1,336 ft | 26.5 | −686 ft |
| February | 21.8 | −1,019 ft | 31.4 | −342 ft |
| March | 34.7 | −113 ft | 45.1 | 597 ft |
| April | 47.4 | 752 ft | 59.2 | 1,532 ft |
| May | 59.4 | 1,545 ft | 70.0 | 2,226 ft |
| June | 69.6 | 2,201 ft | 79.6 | 2,829 ft |
| July | 72.9 | 2,410 ft | 82.9 | 3,033 ft |
| August | 70.6 | 2,264 ft | 80.7 | 2,897 ft |
| September | 63.0 | 1,778 ft | 75.0 | 2,542 ft |
| October | 50.3 | 946 ft | 62.2 | 1,726 ft |
| November | 35.6 | −51 ft | 45.8 | 644 ft |
| December | 23.4 | −905 ft | 32.0 | −300 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 2Y4
DENSITY ALTITUDE
Field elevation 1,216 ft — the air behaves like 3,039 ft.
- PRESSURE ALT
- 1,217 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
- KSKI — Sac City Municipal
Sac City · elev 1,250 ft
- KFOD — Fort Dodge Regional
Fort Dodge · elev 1,156 ft
- KPOH — Pocahontas Municipal
Pocahontas · elev 1,226 ft
- KCIN — Arthur N Neu
Carroll · elev 1,204 ft
- KEFW — Jefferson Municipal
Jefferson · elev 1,047 ft
- 0K7 — Humboldt Municipal
Humboldt · elev 1,098 ft
- KSLB — Storm Lake Municipal
Storm Lake · elev 1,488 ft
- KEBS — Webster City Municipal
Webster City · elev 1,122 ft
Frequently asked questions
How high does density altitude get at 2Y4 in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Rockwell City Municipal reaches roughly 3,033 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 2Y4 on an average day?
It swings with the seasons: from roughly −1,336 ft at the coldest month's average temperature to about 2,410 ft at the warmest month's — all from a constant field elevation of 1,216 ft. The month-by-month table above carries the full year.
What is the field elevation of Rockwell City Municipal?
1,216 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2Y4 (FAA), in Rockwell City, Iowa.