Chattanooga, Tennessee · field elev 683 ft
Density Altitude at Lovell Field (KCHA)
Lovell Field sits at 683 ft, and even a typical July afternoon (91 °F) only lifts density altitude to about 2,850 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 | 41.7 | −295 ft | 51.0 | 332 ft |
| February | 45.6 | −30 ft | 55.6 | 638 ft |
| March | 53.2 | 479 ft | 64.1 | 1,193 ft |
| April | 61.7 | 1,037 ft | 73.6 | 1,801 ft |
| May | 70.0 | 1,572 ft | 81.0 | 2,265 ft |
| June | 77.4 | 2,040 ft | 87.6 | 2,673 ft |
| July | 80.7 | 2,246 ft | 90.5 | 2,850 ft |
| August | 80.0 | 2,203 ft | 89.8 | 2,807 ft |
| September | 73.9 | 1,820 ft | 84.3 | 2,470 ft |
| October | 62.7 | 1,102 ft | 74.1 | 1,832 ft |
| November | 51.2 | 346 ft | 62.0 | 1,057 ft |
| December | 44.3 | −118 ft | 53.2 | 479 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 KCHA
DENSITY ALTITUDE
Field elevation 683 ft — the air behaves like 2,880 ft.
- PRESSURE ALT
- 684 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 Tennessee fields
- KFGU — Collegedale Municipal
Collegedale · elev 860 ft
- KAPT — Marion County/Brown Field
Jasper · elev 641 ft
- KRZR — Cleveland Regional Jetport
Cleveland · elev 866 ft
- 2A0 — Mark Anton
Dayton · elev 718 ft
- KUOS — Franklin County
Sewanee · elev 1,953 ft
- KMMI — Mcminn County
Athens · elev 874 ft
- 1A3 — Martin Campbell Field
Copperhill · elev 1,789 ft
- KBGF — Winchester Municipal
Winchester · elev 979 ft
Frequently asked questions
How high does density altitude get at KCHA in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Lovell Field reaches roughly 2,850 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 KCHA on an average day?
It swings with the seasons: from roughly −295 ft at the coldest month's average temperature to about 2,246 ft at the warmest month's — all from a constant field elevation of 683 ft. The month-by-month table above carries the full year.
What is the field elevation of Lovell Field?
683 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCHA (ICAO) / CHA (FAA), in Chattanooga, Tennessee.