Thomas, Oklahoma · field elev 1,733 ft
Density Altitude at Thomas Municipal (1O4)
Thomas Municipal sits at 1,733 ft, and even a typical July afternoon (94 °F) only lifts density altitude to about 4,336 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 | 37.6 | 730 ft | 48.0 | 1,432 ft |
| February | 41.3 | 982 ft | 51.9 | 1,691 ft |
| March | 50.4 | 1,592 ft | 61.7 | 2,330 ft |
| April | 58.6 | 2,130 ft | 70.2 | 2,873 ft |
| May | 67.7 | 2,714 ft | 79.2 | 3,436 ft |
| June | 77.8 | 3,349 ft | 89.0 | 4,035 ft |
| July | 82.1 | 3,614 ft | 94.0 | 4,336 ft |
| August | 81.5 | 3,578 ft | 93.2 | 4,288 ft |
| September | 72.8 | 3,036 ft | 84.0 | 3,731 ft |
| October | 61.4 | 2,311 ft | 72.4 | 3,011 ft |
| November | 48.7 | 1,479 ft | 59.0 | 2,155 ft |
| December | 39.1 | 833 ft | 48.9 | 1,492 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 1O4
DENSITY ALTITUDE
Field elevation 1,733 ft — the air behaves like 4,336 ft.
- PRESSURE ALT
- 1,734 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 Oklahoma fields
- KOJA — Weatherford Stafford
Weatherford · elev 1,605 ft
- KCLK — Clinton Regional
Clinton · elev 1,616 ft
- KJWG — Watonga Regional
Watonga · elev 1,551 ft
- 2O8 — Hinton Municipal
Hinton · elev 1,587 ft
- 1S4 — Seiling
Seiling · elev 1,746 ft
- F36 — Cordell Municipal
Cordell · elev 1,589 ft
- O65 — Christman Airfield
Okeene · elev 1,208 ft
- KCSM — Infinity One Oklahoma Spaceport
Burns Flat · elev 1,922 ft
Frequently asked questions
How high does density altitude get at 1O4 in summer?
On a typical July afternoon — around 94 °F at the nearest NOAA normals station — density altitude at Thomas Municipal reaches roughly 4,336 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 1O4 on an average day?
It swings with the seasons: from roughly 730 ft at the coldest month's average temperature to about 3,614 ft at the warmest month's — all from a constant field elevation of 1,733 ft. The month-by-month table above carries the full year.
What is the field elevation of Thomas Municipal?
1,733 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 1O4 (FAA), in Thomas, Oklahoma.