Guntersville, Alabama · field elev 615 ft
Density Altitude at Guntersville Municipal/Joe Starnes Field (8A1)
Guntersville Municipal/Joe Starnes Field sits at 615 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 2,651 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 | 41.0 | −428 ft | 49.5 | 148 ft |
| February | 44.8 | −169 ft | 54.2 | 461 ft |
| March | 52.8 | 368 ft | 62.7 | 1,019 ft |
| April | 61.0 | 908 ft | 71.7 | 1,597 ft |
| May | 69.4 | 1,450 ft | 79.0 | 2,057 ft |
| June | 76.7 | 1,913 ft | 85.5 | 2,461 ft |
| July | 79.9 | 2,113 ft | 88.6 | 2,651 ft |
| August | 79.1 | 2,063 ft | 87.8 | 2,602 ft |
| September | 73.9 | 1,737 ft | 83.0 | 2,306 ft |
| October | 63.4 | 1,064 ft | 73.2 | 1,692 ft |
| November | 52.0 | 315 ft | 61.6 | 947 ft |
| December | 44.3 | −203 ft | 53.0 | 381 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 8A1
DENSITY ALTITUDE
Field elevation 615 ft — the air behaves like 2,675 ft.
- PRESSURE ALT
- 616 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 Alabama fields
- KBFZ — Albertville Regional/Thomas J Brumlik Field
Albertville · elev 1,032 ft
- 4A6 — Scottsboro Municipal-Word Field
Scottsboro · elev 651 ft
- 3M5 — Moontown
Huntsville · elev 655 ft
- 20A — Robbins Field
Oneonta · elev 1,125 ft
- 4A9 — Isbell Field
Fort Payne · elev 877 ft
- KGAD — Northeast Alabama Regional
Gadsden · elev 569 ft
- KHSV — Huntsville International-Carl T Jones Field
Huntsville · elev 629 ft
- KCMD — Cullman Regional/Folsom Field
Cullman · elev 970 ft
Frequently asked questions
How high does density altitude get at 8A1 in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Guntersville Municipal/Joe Starnes Field reaches roughly 2,651 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 8A1 on an average day?
It swings with the seasons: from roughly −428 ft at the coldest month's average temperature to about 2,113 ft at the warmest month's — all from a constant field elevation of 615 ft. The month-by-month table above carries the full year.
What is the field elevation of Guntersville Municipal/Joe Starnes Field?
615 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 8A1 (FAA), in Guntersville, Alabama.