Clifton, Texas · field elev 760 ft
Density Altitude at Clifton Municipal/Isenhower Field (7F7)
Clifton Municipal/Isenhower Field sits at 760 ft, and even a typical August afternoon (96 °F) only lifts density altitude to about 3,264 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 | 45.6 | 65 ft | 57.0 | 825 ft |
| February | 49.4 | 321 ft | 60.8 | 1,074 ft |
| March | 57.0 | 825 ft | 68.4 | 1,564 ft |
| April | 64.5 | 1,314 ft | 76.3 | 2,065 ft |
| May | 73.1 | 1,864 ft | 83.7 | 2,526 ft |
| June | 80.3 | 2,316 ft | 91.1 | 2,980 ft |
| July | 83.5 | 2,514 ft | 95.4 | 3,240 ft |
| August | 83.7 | 2,526 ft | 95.8 | 3,264 ft |
| September | 77.5 | 2,141 ft | 89.4 | 2,876 ft |
| October | 67.0 | 1,475 ft | 79.4 | 2,259 ft |
| November | 56.0 | 759 ft | 67.7 | 1,520 ft |
| December | 47.8 | 213 ft | 58.9 | 950 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 7F7
DENSITY ALTITUDE
Field elevation 760 ft — the air behaves like 3,276 ft.
- PRESSURE ALT
- 761 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
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Frequently asked questions
How high does density altitude get at 7F7 in summer?
On a typical August afternoon — around 96 °F at the nearest NOAA normals station — density altitude at Clifton Municipal/Isenhower Field reaches roughly 3,264 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 7F7 on an average day?
It swings with the seasons: from roughly 65 ft at the coldest month's average temperature to about 2,526 ft at the warmest month's — all from a constant field elevation of 760 ft. The month-by-month table above carries the full year.
What is the field elevation of Clifton Municipal/Isenhower Field?
760 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 7F7 (FAA), in Clifton, Texas.