St Maries, Idaho · field elev 2,131 ft
Density Altitude at Jack A Buell (S72)
Jack A Buell sits at 2,131 ft, and even a typical August afternoon (85 °F) only lifts density altitude to about 4,246 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 | 30.4 | 730 ft | 36.7 | 1,164 ft |
| February | 33.4 | 938 ft | 41.5 | 1,490 ft |
| March | 39.5 | 1,354 ft | 49.6 | 2,031 ft |
| April | 46.5 | 1,825 ft | 58.0 | 2,581 ft |
| May | 54.9 | 2,379 ft | 67.8 | 3,209 ft |
| June | 60.8 | 2,762 ft | 73.7 | 3,580 ft |
| July | 68.2 | 3,234 ft | 84.3 | 4,234 ft |
| August | 67.8 | 3,209 ft | 84.5 | 4,246 ft |
| September | 59.1 | 2,652 ft | 74.5 | 3,630 ft |
| October | 47.2 | 1,872 ft | 58.7 | 2,626 ft |
| November | 36.6 | 1,157 ft | 43.7 | 1,638 ft |
| December | 30.1 | 710 ft | 35.8 | 1,102 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 S72
DENSITY ALTITUDE
Field elevation 2,131 ft — the air behaves like 4,277 ft.
- PRESSURE ALT
- 2,132 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 Idaho fields
- S83 — Shoshone County
Kellogg · elev 2,227 ft
- KCOE — Coeur D'Alene
Coeur D'Alene · elev 2,320 ft
- S77 — Magee
Coeur D'Alene · elev 3,002 ft
- S68 — Orofino Municipal
Orofino · elev 1,005 ft
- 1S6 — Priest River
Priest River · elev 2,193 ft
- KSZT — Sandpoint
Sandpoint · elev 2,131 ft
- KLWS — Lewiston/Nez Perce County
Lewiston · elev 1,442 ft
- S89 — Craigmont Municipal
Craigmont · elev 3,805 ft
Frequently asked questions
How high does density altitude get at S72 in summer?
On a typical August afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Jack A Buell reaches roughly 4,246 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 S72 on an average day?
It swings with the seasons: from roughly 710 ft at the coldest month's average temperature to about 3,234 ft at the warmest month's — all from a constant field elevation of 2,131 ft. The month-by-month table above carries the full year.
What is the field elevation of Jack A Buell?
2,131 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is S72 (FAA), in St Maries, Idaho.