Logan, West Virginia · field elev 1,666 ft
Density Altitude at Logan County (6L4)
Logan County sits at 1,666 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 3,643 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 | 33.3 | 351 ft | 43.1 | 1,021 ft |
| February | 36.4 | 565 ft | 47.3 | 1,303 ft |
| March | 43.7 | 1,061 ft | 55.9 | 1,871 ft |
| April | 54.6 | 1,786 ft | 67.7 | 2,632 ft |
| May | 62.9 | 2,325 ft | 75.2 | 3,105 ft |
| June | 70.5 | 2,810 ft | 81.3 | 3,484 ft |
| July | 73.8 | 3,017 ft | 83.9 | 3,643 ft |
| August | 72.8 | 2,954 ft | 82.7 | 3,570 ft |
| September | 66.7 | 2,568 ft | 77.8 | 3,267 ft |
| October | 55.3 | 1,832 ft | 66.8 | 2,575 ft |
| November | 44.2 | 1,095 ft | 56.0 | 1,877 ft |
| December | 36.7 | 585 ft | 45.7 | 1,196 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 6L4
DENSITY ALTITUDE
Field elevation 1,666 ft — the air behaves like 3,649 ft.
- PRESSURE ALT
- 1,667 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 West Virginia fields
- KEBD — Southern West Virginia Regional
Williamson · elev 1,883 ft
- I16 — Kee Field
Pineville · elev 1,783 ft
- KCRW — West Virginia International Yeager
Charleston · elev 947 ft
- 12V — Ona Airpark
Milton · elev 572 ft
- KBKW — Raleigh County Meml
Beckley · elev 2,504 ft
- I41 — Robert Newlon Field
Huntington · elev 550 ft
- KHTS — Tri-State/Milton J Ferguson Field
Huntington · elev 828 ft
- KBLF — Mercer County
Bluefield · elev 2,857 ft
Frequently asked questions
How high does density altitude get at 6L4 in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Logan County reaches roughly 3,643 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 6L4 on an average day?
It swings with the seasons: from roughly 351 ft at the coldest month's average temperature to about 3,017 ft at the warmest month's — all from a constant field elevation of 1,666 ft. The month-by-month table above carries the full year.
What is the field elevation of Logan County?
1,666 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 6L4 (FAA), in Logan, West Virginia.