Hollis, Oklahoma · field elev 1,659 ft
Density Altitude at Hollis Municipal (O35)
Hollis Municipal sits at 1,659 ft, and even a typical July afternoon (96 °F) only lifts density altitude to about 4,384 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 | 39.9 | 795 ft | 53.7 | 1,718 ft |
| February | 43.4 | 1,032 ft | 56.9 | 1,928 ft |
| March | 52.1 | 1,613 ft | 66.3 | 2,534 ft |
| April | 60.6 | 2,168 ft | 74.8 | 3,071 ft |
| May | 70.6 | 2,807 ft | 83.7 | 3,622 ft |
| June | 79.7 | 3,376 ft | 92.3 | 4,145 ft |
| July | 83.3 | 3,598 ft | 96.3 | 4,384 ft |
| August | 82.3 | 3,537 ft | 95.3 | 4,324 ft |
| September | 74.0 | 3,021 ft | 86.9 | 3,818 ft |
| October | 62.2 | 2,271 ft | 76.0 | 3,146 ft |
| November | 50.0 | 1,474 ft | 63.5 | 2,355 ft |
| December | 40.9 | 863 ft | 53.8 | 1,725 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 O35
DENSITY ALTITUDE
Field elevation 1,659 ft — the air behaves like 4,366 ft.
- PRESSURE ALT
- 1,660 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
- 2K4 — Scott Field
Mangum · elev 1,644 ft
- F09 — Olustee Municipal
Olustee · elev 1,346 ft
- KAXS — Altus/Quartz Mountain Regional
Altus · elev 1,433 ft
- O13 — Haddock Field
Erick · elev 2,097 ft
- 3O4 — Sayre Municipal
Sayre · elev 1,937 ft
- 1O8 — Tipton Municipal
Tipton · elev 1,248 ft
- 4O1 — Snyder
Snyder · elev 1,325 ft
- KHBR — Hobart Regional
Hobart · elev 1,563 ft
Frequently asked questions
How high does density altitude get at O35 in summer?
On a typical July afternoon — around 96 °F at the nearest NOAA normals station — density altitude at Hollis Municipal reaches roughly 4,384 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 O35 on an average day?
It swings with the seasons: from roughly 795 ft at the coldest month's average temperature to about 3,598 ft at the warmest month's — all from a constant field elevation of 1,659 ft. The month-by-month table above carries the full year.
What is the field elevation of Hollis Municipal?
1,659 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is O35 (FAA), in Hollis, Oklahoma.