Cape Girardeau, Missouri · field elev 342 ft
Density Altitude at Cape Girardeau Regional (KCGI)
Cape Girardeau Regional sits at 342 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 2,355 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 | 34.6 | −1,210 ft | 43.0 | −631 ft |
| February | 38.9 | −912 ft | 48.2 | −278 ft |
| March | 47.7 | −312 ft | 58.1 | 381 ft |
| April | 57.9 | 368 ft | 69.0 | 1,089 ft |
| May | 67.8 | 1,012 ft | 78.1 | 1,667 ft |
| June | 76.2 | 1,547 ft | 86.6 | 2,195 ft |
| July | 79.3 | 1,742 ft | 89.2 | 2,355 ft |
| August | 77.4 | 1,623 ft | 88.3 | 2,300 ft |
| September | 69.7 | 1,134 ft | 81.8 | 1,898 ft |
| October | 58.6 | 414 ft | 70.9 | 1,211 ft |
| November | 46.7 | −379 ft | 56.8 | 296 ft |
| December | 38.0 | −974 ft | 46.3 | −406 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 KCGI
DENSITY ALTITUDE
Field elevation 342 ft — the air behaves like 2,343 ft.
- PRESSURE ALT
- 343 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 Missouri fields
- KSIK — Sikeston Meml Municipal
Sikeston · elev 315 ft
- KCHQ — Mississippi County
Charleston · elev 313 ft
- KDXE — Dexter Municipal
Dexter · elev 304 ft
- KPCD — Perryville Regional
Perryville · elev 373 ft
- H88 — A Paul Vance Fredericktown Regional
Fredericktown · elev 880 ft
- KEIW — County Meml
New Madrid · elev 296 ft
- KMAW — Malden Regional
Malden · elev 295 ft
- KPOF — Poplar Bluff Regional Business
Poplar Bluff · elev 331 ft
Frequently asked questions
How high does density altitude get at KCGI in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Cape Girardeau Regional reaches roughly 2,355 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 KCGI on an average day?
It swings with the seasons: from roughly −1,210 ft at the coldest month's average temperature to about 1,742 ft at the warmest month's — all from a constant field elevation of 342 ft. The month-by-month table above carries the full year.
What is the field elevation of Cape Girardeau Regional?
342 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCGI (ICAO) / CGI (FAA), in Cape Girardeau, Missouri.