Archer City, Texas · field elev 1,065 ft
Density Altitude at Archer City Municipal (T39)
Archer City Municipal sits at 1,065 ft, and even a typical August afternoon (97 °F) only lifts density altitude to about 3,706 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 | 43.0 | 268 ft | 55.5 | 1,103 ft |
| February | 47.1 | 545 ft | 59.6 | 1,371 ft |
| March | 55.4 | 1,096 ft | 67.8 | 1,901 ft |
| April | 63.8 | 1,644 ft | 76.8 | 2,470 ft |
| May | 72.9 | 2,225 ft | 84.1 | 2,923 ft |
| June | 81.0 | 2,732 ft | 92.5 | 3,435 ft |
| July | 85.0 | 2,978 ft | 96.9 | 3,700 ft |
| August | 84.8 | 2,966 ft | 97.0 | 3,706 ft |
| September | 76.6 | 2,457 ft | 88.6 | 3,199 ft |
| October | 65.4 | 1,747 ft | 78.3 | 2,564 ft |
| November | 54.1 | 1,011 ft | 66.5 | 1,817 ft |
| December | 44.7 | 383 ft | 56.7 | 1,182 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 T39
DENSITY ALTITUDE
Field elevation 1,065 ft — the air behaves like 3,706 ft.
- PRESSURE ALT
- 1,066 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 Texas fields
- KONY — Olney Municipal
Olney · elev 1,275 ft
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- F14 — Wichita Valley
Wichita Falls · elev 1,005 ft
- KSPS — Sheppard AFB/Wichita Falls Municipal
Wichita Falls · elev 1,019 ft
- KRPH — Graham Municipal
Graham · elev 1,123 ft
- 21F — Jacksboro Municipal
Jacksboro · elev 1,062 ft
- 60F — Seymour Municipal
Seymour · elev 1,344 ft
- 72F — Throckmorton Municipal
Throckmorton · elev 1,273 ft
Frequently asked questions
How high does density altitude get at T39 in summer?
On a typical August afternoon — around 97 °F at the nearest NOAA normals station — density altitude at Archer City Municipal reaches roughly 3,706 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 T39 on an average day?
It swings with the seasons: from roughly 268 ft at the coldest month's average temperature to about 2,978 ft at the warmest month's — all from a constant field elevation of 1,065 ft. The month-by-month table above carries the full year.
What is the field elevation of Archer City Municipal?
1,065 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is T39 (FAA), in Archer City, Texas.