Westport, Oklahoma · field elev 901 ft
Density Altitude at Westport (4F1)
Westport sits at 901 ft, and even a typical August afternoon (93 °F) only lifts density altitude to about 3,248 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 | 39.0 | −209 ft | 50.2 | 549 ft |
| February | 43.1 | 71 ft | 54.9 | 861 ft |
| March | 52.5 | 702 ft | 65.0 | 1,519 ft |
| April | 61.1 | 1,267 ft | 74.1 | 2,100 ft |
| May | 68.4 | 1,738 ft | 79.3 | 2,426 ft |
| June | 76.8 | 2,269 ft | 87.1 | 2,907 ft |
| July | 81.9 | 2,587 ft | 92.6 | 3,242 ft |
| August | 81.0 | 2,531 ft | 92.7 | 3,248 ft |
| September | 72.8 | 2,017 ft | 84.6 | 2,754 ft |
| October | 61.9 | 1,319 ft | 74.2 | 2,106 ft |
| November | 50.5 | 569 ft | 62.0 | 1,325 ft |
| December | 40.7 | −93 ft | 51.4 | 629 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 4F1
DENSITY ALTITUDE
Field elevation 901 ft — the air behaves like 3,266 ft.
- PRESSURE ALT
- 902 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
- 95F — Cleveland Municipal
Cleveland · elev 976 ft
- KOWP — William R Pogue Municipal
Sand Springs · elev 892 ft
- H92 — Hominy Municipal
Hominy · elev 825 ft
- 2F6 — Skiatook Municipal
Skiatook · elev 671 ft
- KRVS — Tulsa Riverside
Tulsa · elev 638 ft
- KTUL — Tulsa International
Tulsa · elev 678 ft
- H97 — Pawnee Municipal
Pawnee · elev 875 ft
- 3F7 — Jones Meml
Bristow · elev 870 ft
Frequently asked questions
How high does density altitude get at 4F1 in summer?
On a typical August afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Westport reaches roughly 3,248 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 4F1 on an average day?
It swings with the seasons: from roughly −209 ft at the coldest month's average temperature to about 2,587 ft at the warmest month's — all from a constant field elevation of 901 ft. The month-by-month table above carries the full year.
What is the field elevation of Westport?
901 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 4F1 (FAA), in Westport, Oklahoma.