Opelousas, Louisiana · field elev 74 ft
Density Altitude at St Landry Parish (KOPL)
St Landry Parish sits at 74 ft, and even a typical August afternoon (92 °F) only lifts density altitude to about 2,200 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 | 52.5 | −322 ft | 63.5 | 404 ft |
| February | 56.0 | −89 ft | 67.2 | 644 ft |
| March | 62.1 | 313 ft | 73.5 | 1,048 ft |
| April | 68.1 | 702 ft | 79.4 | 1,420 ft |
| May | 75.0 | 1,143 ft | 85.5 | 1,801 ft |
| June | 80.3 | 1,477 ft | 90.2 | 2,090 ft |
| July | 82.1 | 1,589 ft | 91.6 | 2,176 ft |
| August | 82.1 | 1,589 ft | 92.0 | 2,200 ft |
| September | 78.0 | 1,332 ft | 88.3 | 1,973 ft |
| October | 69.5 | 792 ft | 81.2 | 1,533 ft |
| November | 59.9 | 169 ft | 71.4 | 914 ft |
| December | 54.2 | −208 ft | 65.1 | 508 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 KOPL
DENSITY ALTITUDE
Field elevation 74 ft — the air behaves like 2,200 ft.
- PRESSURE ALT
- 75 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
- 4R7 — Eunice
Eunice · elev 42 ft
- KLFT — Lafayette Regional/Paul Fournet Field
Lafayette · elev 41 ft
- 2R6 — Bunkie Municipal
Bunkie · elev 62 ft
- 3R2 — Le Gros Meml
Crowley · elev 14 ft
- KMKV — Marksville Municipal
Marksville · elev 78 ft
- KACP — Allen Parish
Oakdale · elev 107 ft
- KARA — Acadiana Regional
New Iberia · elev 24 ft
- KHZR — False River Regional
New Roads · elev 39 ft
Frequently asked questions
How high does density altitude get at KOPL in summer?
On a typical August afternoon — around 92 °F at the nearest NOAA normals station — density altitude at St Landry Parish reaches roughly 2,200 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 KOPL on an average day?
It swings with the seasons: from roughly −322 ft at the coldest month's average temperature to about 1,589 ft at the warmest month's — all from a constant field elevation of 74 ft. The month-by-month table above carries the full year.
What is the field elevation of St Landry Parish?
74 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KOPL (ICAO) / OPL (FAA), in Opelousas, Louisiana.