Farmerville, Louisiana · field elev 119 ft
Density Altitude at Union Parish (F87)
Union Parish sits at 119 ft, and even a typical August afternoon (93 °F) only lifts density altitude to about 2,291 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 | 45.8 | −717 ft | 56.0 | −33 ft |
| February | 49.6 | −460 ft | 60.0 | 231 ft |
| March | 56.9 | 27 ft | 68.4 | 777 ft |
| April | 64.4 | 518 ft | 75.7 | 1,242 ft |
| May | 72.6 | 1,046 ft | 82.5 | 1,669 ft |
| June | 79.5 | 1,482 ft | 89.4 | 2,096 ft |
| July | 82.6 | 1,676 ft | 92.4 | 2,279 ft |
| August | 82.6 | 1,676 ft | 92.6 | 2,291 ft |
| September | 76.5 | 1,293 ft | 87.0 | 1,948 ft |
| October | 65.9 | 615 ft | 77.1 | 1,331 ft |
| November | 55.0 | −99 ft | 65.6 | 596 ft |
| December | 47.8 | −582 ft | 57.7 | 79 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 F87
DENSITY ALTITUDE
Field elevation 119 ft — the air behaves like 2,316 ft.
- PRESSURE ALT
- 120 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
- KRSN — Ruston Regional
Ruston · elev 317 ft
- KMLU — Monroe Regional
Monroe · elev 79 ft
- KBQP — Morehouse Meml
Bastrop · elev 168 ft
- M79 — John H Hooks Jr Meml
Rayville · elev 83 ft
- 5F0 — Arcadia-Bienville Parish
Arcadia · elev 440 ft
- 5F4 — Homer Municipal
Homer · elev 244 ft
- F88 — Jonesboro
Jonesboro · elev 256 ft
- F86 — Caldwell Parish
Columbia · elev 67 ft
Frequently asked questions
How high does density altitude get at F87 in summer?
On a typical August afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Union Parish reaches roughly 2,291 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 F87 on an average day?
It swings with the seasons: from roughly −717 ft at the coldest month's average temperature to about 1,676 ft at the warmest month's — all from a constant field elevation of 119 ft. The month-by-month table above carries the full year.
What is the field elevation of Union Parish?
119 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is F87 (FAA), in Farmerville, Louisiana.