Cairo, Georgia · field elev 264 ft
Density Altitude at Cairo-Grady County (70J)
Cairo-Grady County sits at 264 ft, and even a typical August afternoon (90 °F) only lifts density altitude to about 2,327 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 | 49.7 | −274 ft | 61.6 | 514 ft |
| February | 53.6 | −13 ft | 65.7 | 781 ft |
| March | 59.3 | 364 ft | 71.7 | 1,166 ft |
| April | 65.5 | 768 ft | 78.2 | 1,578 ft |
| May | 73.4 | 1,274 ft | 85.1 | 2,008 ft |
| June | 79.0 | 1,628 ft | 89.8 | 2,297 ft |
| July | 80.3 | 1,709 ft | 89.9 | 2,303 ft |
| August | 80.7 | 1,734 ft | 90.3 | 2,327 ft |
| September | 77.0 | 1,502 ft | 87.0 | 2,125 ft |
| October | 68.2 | 942 ft | 79.6 | 1,665 ft |
| November | 58.7 | 324 ft | 71.0 | 1,122 ft |
| December | 52.5 | −86 ft | 64.3 | 690 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 70J
DENSITY ALTITUDE
Field elevation 264 ft — the air behaves like 2,309 ft.
- PRESSURE ALT
- 265 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 Georgia fields
- KTVI — Thomasville Regional
Thomasville · elev 264 ft
- KCXU — Camilla-Mitchell County
Camilla · elev 176 ft
- KMGR — Moultrie Municipal
Moultrie · elev 297 ft
- KBGE — Decatur County Industrial Air Park
Bainbridge · elev 141 ft
- KMUL — Spence
Moultrie · elev 292 ft
- 4J5 — Quitman Brooks County
Quitman · elev 185 ft
- 17J — Donalsonville Municipal
Donalsonville · elev 147 ft
- KABY — Southwest Georgia Regional
Albany · elev 196 ft
Frequently asked questions
How high does density altitude get at 70J in summer?
On a typical August afternoon — around 90 °F at the nearest NOAA normals station — density altitude at Cairo-Grady County reaches roughly 2,327 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 70J on an average day?
It swings with the seasons: from roughly −274 ft at the coldest month's average temperature to about 1,734 ft at the warmest month's — all from a constant field elevation of 264 ft. The month-by-month table above carries the full year.
What is the field elevation of Cairo-Grady County?
264 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 70J (FAA), in Cairo, Georgia.