Clarksdale, Mississippi · field elev 173 ft
Density Altitude at Fletcher Field (KCKM)
Fletcher Field sits at 173 ft, and even a typical August afternoon (91 °F) only lifts density altitude to about 2,241 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 | 41.2 | −964 ft | 50.3 | −346 ft |
| February | 45.3 | −684 ft | 55.4 | −6 ft |
| March | 52.9 | −172 ft | 63.5 | 526 ft |
| April | 62.2 | 441 ft | 72.9 | 1,131 ft |
| May | 71.5 | 1,042 ft | 81.4 | 1,667 ft |
| June | 78.7 | 1,498 ft | 88.2 | 2,088 ft |
| July | 81.1 | 1,648 ft | 90.4 | 2,223 ft |
| August | 80.5 | 1,610 ft | 90.7 | 2,241 ft |
| September | 75.0 | 1,264 ft | 86.2 | 1,965 ft |
| October | 64.0 | 559 ft | 75.9 | 1,321 ft |
| November | 52.2 | −219 ft | 63.0 | 494 ft |
| December | 44.1 | −766 ft | 53.3 | −146 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 KCKM
DENSITY ALTITUDE
Field elevation 173 ft — the air behaves like 2,259 ft.
- PRESSURE ALT
- 174 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 Mississippi fields
- KMMS — Selfs
Marks · elev 162 ft
- 30M — Ralph M Sharpe
Tunica · elev 195 ft
- KUTA — Tunica Municipal
Tunica · elev 194 ft
- 09M — Charleston Municipal
Charleston · elev 175 ft
- KPMU — Panola County
Batesville · elev 221 ft
- M37 — Ruleville-Drew
Drew · elev 137 ft
- KRNV — Cleveland Municipal
Cleveland · elev 140 ft
- H75 — Hernando Village Airpark
Hernando · elev 242 ft
Frequently asked questions
How high does density altitude get at KCKM in summer?
On a typical August afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Fletcher Field reaches roughly 2,241 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 KCKM on an average day?
It swings with the seasons: from roughly −964 ft at the coldest month's average temperature to about 1,648 ft at the warmest month's — all from a constant field elevation of 173 ft. The month-by-month table above carries the full year.
What is the field elevation of Fletcher Field?
173 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCKM (ICAO) / CKM (FAA), in Clarksdale, Mississippi.