Plains, Texas · field elev 3,705 ft
Density Altitude at Yoakum County (F98)
From a field elevation of 3,705 ft, a typical July afternoon at Yoakum County (93 °F) raises density altitude to about 6,636 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 39.4 | 3,300 ft | 54.3 | 4,279 ft |
| February | 43.7 | 3,586 ft | 59.3 | 4,599 ft |
| March | 51.0 | 4,065 ft | 67.3 | 5,104 ft ▲ |
| April | 58.7 | 4,561 ft | 75.3 | 5,600 ft ▲ |
| May | 68.4 | 5,173 ft | 83.7 | 6,111 ft ▲ |
| June | 76.9 | 5,698 ft | 91.8 | 6,594 ft ▲ |
| July | 78.9 | 5,820 ft | 92.5 | 6,636 ft ▲ |
| August | 77.8 | 5,753 ft | 91.4 | 6,571 ft ▲ |
| September | 70.6 | 5,310 ft | 84.3 | 6,147 ft ▲ |
| October | 60.1 | 4,650 ft | 75.2 | 5,594 ft ▲ |
| November | 48.1 | 3,876 ft | 63.3 | 4,853 ft |
| December | 40.5 | 3,373 ft | 55.0 | 4,324 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 F98
DENSITY ALTITUDE caution
Field elevation 3,705 ft — the air behaves like 6,665 ft.
- PRESSURE ALT
- 3,707 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
- E57 — Denver City
Denver City · elev 3,575 ft
- KLLN — Levelland Municipal
Levelland · elev 3,514 ft
- F85 — Cochran County
Morton · elev 3,747 ft
- KBFE — Terry County
Brownfield · elev 3,265 ft
- KGNC — Gaines County
Seminole · elev 3,315 ft
- T96 — Southwest Lubbock
Wolfforth · elev 3,265 ft
- KLIU — Littlefield Taylor Brown Municipal
Littlefield · elev 3,616 ft
- 2F4 — T-Bar
Tahoka · elev 3,126 ft
Frequently asked questions
How high does density altitude get at F98 in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Yoakum County reaches roughly 6,636 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 F98 on an average day?
It swings with the seasons: from roughly 3,300 ft at the coldest month's average temperature to about 5,820 ft at the warmest month's — all from a constant field elevation of 3,705 ft. The month-by-month table above carries the full year.
What is the field elevation of Yoakum County?
3,705 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is F98 (FAA), in Plains, Texas.