Bald Knob, Arkansas · field elev 212 ft
Density Altitude at Bald Knob Municipal (M74)
Bald Knob Municipal sits at 212 ft, and even a typical July afternoon (93 °F) only lifts density altitude to about 2,429 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 | 39.6 | −1,026 ft | 49.1 | −379 ft |
| February | 43.6 | −751 ft | 54.1 | −44 ft |
| March | 52.3 | −164 ft | 63.0 | 542 ft |
| April | 61.7 | 457 ft | 73.0 | 1,185 ft |
| May | 71.1 | 1,064 ft | 81.6 | 1,727 ft |
| June | 79.4 | 1,589 ft | 89.6 | 2,221 ft |
| July | 82.8 | 1,802 ft | 93.0 | 2,429 ft |
| August | 81.5 | 1,721 ft | 92.1 | 2,374 ft |
| September | 74.2 | 1,261 ft | 85.4 | 1,963 ft |
| October | 62.2 | 490 ft | 73.8 | 1,236 ft |
| November | 50.8 | −264 ft | 61.3 | 431 ft |
| December | 42.3 | −840 ft | 51.6 | −211 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 M74
DENSITY ALTITUDE
Field elevation 212 ft — the air behaves like 2,429 ft.
- PRESSURE ALT
- 213 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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- M19 — Newport Regional
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Carlisle · elev 241 ft
- M36 — Frank Federer Meml
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Frequently asked questions
How high does density altitude get at M74 in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Bald Knob Municipal reaches roughly 2,429 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 M74 on an average day?
It swings with the seasons: from roughly −1,026 ft at the coldest month's average temperature to about 1,802 ft at the warmest month's — all from a constant field elevation of 212 ft. The month-by-month table above carries the full year.
What is the field elevation of Bald Knob Municipal?
212 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is M74 (FAA), in Bald Knob, Arkansas.