Osceola, Iowa · field elev 1,115 ft
Density Altitude at Osceola Municipal (I75)
Osceola Municipal sits at 1,115 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 3,131 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 | 21.8 | −1,146 ft | 32.2 | −412 ft |
| February | 25.9 | −855 ft | 36.7 | −101 ft |
| March | 38.2 | 3 ft | 50.0 | 801 ft |
| April | 49.8 | 787 ft | 62.4 | 1,615 ft |
| May | 60.7 | 1,505 ft | 72.2 | 2,242 ft |
| June | 70.8 | 2,153 ft | 82.2 | 2,867 ft |
| July | 75.2 | 2,431 ft | 86.5 | 3,131 ft |
| August | 73.0 | 2,292 ft | 84.7 | 3,021 ft |
| September | 64.7 | 1,763 ft | 78.0 | 2,606 ft |
| October | 52.0 | 934 ft | 64.8 | 1,770 ft |
| November | 38.5 | 23 ft | 50.1 | 807 ft |
| December | 27.2 | −763 ft | 37.3 | −59 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 I75
DENSITY ALTITUDE
Field elevation 1,115 ft — the air behaves like 3,162 ft.
- PRESSURE ALT
- 1,116 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
- KCNC — Chariton Municipal
Chariton · elev 1,051 ft
- 6Z6 — Nash Field Indianola
Indianola · elev 991 ft
- 3Y3 — Winterset Municipal
Winterset · elev 1,116 ft
- KLWD — Lamoni Municipal
Lamoni · elev 1,131 ft
- 0E9 — Corydon
Corydon · elev 1,045 ft
- KDSM — Des Moines International
Des Moines · elev 958 ft
- KOXV — Knoxville Municipal
Knoxville · elev 928 ft
- KCSQ — Creston Municipal
Creston · elev 1,300 ft
Frequently asked questions
How high does density altitude get at I75 in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Osceola Municipal reaches roughly 3,131 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 I75 on an average day?
It swings with the seasons: from roughly −1,146 ft at the coldest month's average temperature to about 2,431 ft at the warmest month's — all from a constant field elevation of 1,115 ft. The month-by-month table above carries the full year.
What is the field elevation of Osceola Municipal?
1,115 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is I75 (FAA), in Osceola, Iowa.