Dumas, Arkansas · field elev 164 ft
Density Altitude at Billy Free Municipal (0M0)
Billy Free Municipal sits at 164 ft, and even a typical July afternoon (92 °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 | 44.3 | −763 ft | 53.2 | −163 ft |
| February | 47.9 | −519 ft | 57.7 | 135 ft |
| March | 55.8 | 9 ft | 66.5 | 710 ft |
| April | 64.6 | 587 ft | 75.5 | 1,285 ft |
| May | 72.6 | 1,101 ft | 82.8 | 1,743 ft |
| June | 79.6 | 1,543 ft | 89.5 | 2,157 ft |
| July | 81.8 | 1,681 ft | 91.7 | 2,291 ft |
| August | 80.9 | 1,624 ft | 91.3 | 2,267 ft |
| September | 75.2 | 1,266 ft | 86.3 | 1,960 ft |
| October | 64.9 | 606 ft | 76.7 | 1,361 ft |
| November | 54.0 | −110 ft | 64.4 | 574 ft |
| December | 46.4 | −621 ft | 55.5 | −10 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 0M0
DENSITY ALTITUDE
Field elevation 164 ft — the air behaves like 2,309 ft.
- PRESSURE ALT
- 165 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 Arkansas fields
- 55M — Jb West Municipal Airport
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- 7M1 — Mc Gehee Municipal
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- KLLQ — Monticello Municipal/Ellis Field
Monticello · elev 268 ft
- 4M5 — Dermott Municipal
Dermott · elev 135 ft
- 5M1 — Dewitt Municipal/Whitcomb Field
De Witt · elev 189 ft
- KPBF — Pinebluff Regional/Grider Field
Pine Bluff · elev 206 ft
- M73 — Almyra Municipal
Almyra · elev 210 ft
- 3M9 — Warren Municipal/John B Frazer Jr Field
Warren · elev 235 ft
Frequently asked questions
How high does density altitude get at 0M0 in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Billy Free Municipal 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 0M0 on an average day?
It swings with the seasons: from roughly −763 ft at the coldest month's average temperature to about 1,681 ft at the warmest month's — all from a constant field elevation of 164 ft. The month-by-month table above carries the full year.
What is the field elevation of Billy Free Municipal?
164 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 0M0 (FAA), in Dumas, Arkansas.