Grand Marais, Minnesota · field elev 1,803 ft
Density Altitude at Grand Marais/Cook County (KCKC)
Grand Marais/Cook County sits at 1,803 ft, and even a typical July afternoon (73 °F) only lifts density altitude to about 3,128 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 | 6.9 | −1,363 ft | 17.0 | −627 ft |
| February | 10.3 | −1,113 ft | 21.2 | −326 ft |
| March | 21.8 | −284 ft | 32.6 | 474 ft |
| April | 34.4 | 598 ft | 44.3 | 1,271 ft |
| May | 48.2 | 1,532 ft | 58.4 | 2,203 ft |
| June | 57.4 | 2,138 ft | 66.3 | 2,711 ft |
| July | 63.5 | 2,532 ft | 72.9 | 3,128 ft |
| August | 61.6 | 2,410 ft | 70.8 | 2,996 ft |
| September | 53.4 | 1,876 ft | 62.3 | 2,455 ft |
| October | 40.8 | 1,035 ft | 49.0 | 1,585 ft |
| November | 27.1 | 91 ft | 34.4 | 598 ft |
| December | 14.8 | −786 ft | 22.3 | −248 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 KCKC
DENSITY ALTITUDE
Field elevation 1,803 ft — the air behaves like 3,135 ft.
- PRESSURE ALT
- 1,804 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 Minnesota fields
- KELO — Ely Municipal
Ely · elev 1,456 ft
- KTWM — Richard B Helgeson
Two Harbors · elev 1,073 ft
- 12D — Tower Municipal
Tower · elev 1,370 ft
- KEVM — Eveleth/Virginia Municipal
Eveleth · elev 1,376 ft
- KCQM — Cook Municipal
Cook · elev 1,329 ft
- KDLH — Duluth International
Duluth · elev 1,428 ft
- KDYT — Sky Harbor
Duluth · elev 609 ft
- KORB — Orr Regional
Orr · elev 1,313 ft
Frequently asked questions
How high does density altitude get at KCKC in summer?
On a typical July afternoon — around 73 °F at the nearest NOAA normals station — density altitude at Grand Marais/Cook County reaches roughly 3,128 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 KCKC on an average day?
It swings with the seasons: from roughly −1,363 ft at the coldest month's average temperature to about 2,532 ft at the warmest month's — all from a constant field elevation of 1,803 ft. The month-by-month table above carries the full year.
What is the field elevation of Grand Marais/Cook County?
1,803 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCKC (ICAO) / CKC (FAA), in Grand Marais, Minnesota.