Natchitoches, Louisiana · field elev 121 ft
Density Altitude at Natchitoches Regional (KIER)
Natchitoches Regional sits at 121 ft, and even a typical August afternoon (96 °F) only lifts density altitude to about 2,482 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 | 49.5 | −465 ft | 59.8 | 220 ft |
| February | 53.4 | −203 ft | 64.9 | 553 ft |
| March | 60.6 | 273 ft | 72.2 | 1,023 ft |
| April | 67.6 | 728 ft | 79.3 | 1,472 ft |
| May | 75.8 | 1,251 ft | 86.5 | 1,920 ft |
| June | 82.6 | 1,678 ft | 92.4 | 2,282 ft |
| July | 85.5 | 1,858 ft | 95.3 | 2,458 ft |
| August | 85.3 | 1,846 ft | 95.7 | 2,482 ft |
| September | 79.5 | 1,484 ft | 90.3 | 2,153 ft |
| October | 69.0 | 818 ft | 81.1 | 1,584 ft |
| November | 58.8 | 154 ft | 70.3 | 901 ft |
| December | 51.7 | −317 ft | 62.3 | 384 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 KIER
DENSITY ALTITUDE
Field elevation 121 ft — the air behaves like 2,500 ft.
- PRESSURE ALT
- 122 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
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- 0R5 — David G Joyce
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- F88 — Jonesboro
Jonesboro · elev 256 ft
- L66 — Pollock Municipal
Pollock · elev 203 ft
- L39 — Leesville
Leesville · elev 282 ft
- KAEX — Alexandria International
Alexandria · elev 88 ft
- 3F3 — C E 'Rusty' Williams
Mansfield · elev 324 ft
Frequently asked questions
How high does density altitude get at KIER in summer?
On a typical August afternoon — around 96 °F at the nearest NOAA normals station — density altitude at Natchitoches Regional reaches roughly 2,482 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 KIER on an average day?
It swings with the seasons: from roughly −465 ft at the coldest month's average temperature to about 1,858 ft at the warmest month's — all from a constant field elevation of 121 ft. The month-by-month table above carries the full year.
What is the field elevation of Natchitoches Regional?
121 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KIER (ICAO) / IER (FAA), in Natchitoches, Louisiana.