Ruston, Louisiana · field elev 317 ft
Density Altitude at Ruston Regional (KRSN)
Ruston Regional sits at 317 ft, and even a typical August afternoon (93 °F) only lifts density altitude to about 2,532 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 | 46.1 | −451 ft | 57.3 | 298 ft |
| February | 49.9 | −195 ft | 61.1 | 547 ft |
| March | 57.1 | 285 ft | 68.9 | 1,052 ft |
| April | 64.2 | 749 ft | 76.4 | 1,529 ft |
| May | 72.1 | 1,257 ft | 82.9 | 1,936 ft |
| June | 79.2 | 1,705 ft | 89.4 | 2,337 ft |
| July | 82.0 | 1,880 ft | 92.2 | 2,508 ft |
| August | 81.8 | 1,868 ft | 92.6 | 2,532 ft |
| September | 76.4 | 1,529 ft | 87.8 | 2,239 ft |
| October | 65.5 | 833 ft | 78.1 | 1,636 ft |
| November | 55.6 | 185 ft | 67.5 | 962 ft |
| December | 47.9 | −329 ft | 58.3 | 364 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 KRSN
DENSITY ALTITUDE
Field elevation 317 ft — the air behaves like 2,556 ft.
- PRESSURE ALT
- 318 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 Louisiana fields
- F87 — Union Parish
Farmerville · elev 119 ft
- 5F0 — Arcadia-Bienville Parish
Arcadia · elev 440 ft
- F88 — Jonesboro
Jonesboro · elev 256 ft
- 5F4 — Homer Municipal
Homer · elev 244 ft
- KMLU — Monroe Regional
Monroe · elev 79 ft
- 0R5 — David G Joyce
Winnfield · elev 146 ft
- F86 — Caldwell Parish
Columbia · elev 67 ft
- KMNE — Minden
Minden · elev 278 ft
Frequently asked questions
How high does density altitude get at KRSN in summer?
On a typical August afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Ruston Regional reaches roughly 2,532 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 KRSN on an average day?
It swings with the seasons: from roughly −451 ft at the coldest month's average temperature to about 1,880 ft at the warmest month's — all from a constant field elevation of 317 ft. The month-by-month table above carries the full year.
What is the field elevation of Ruston Regional?
317 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KRSN (ICAO) / RSN (FAA), in Ruston, Louisiana.