Jordan, Montana · field elev 2,667 ft
Density Altitude at Jordan (KJDN)
From a field elevation of 2,667 ft, a typical July afternoon at Jordan (88 °F) raises density altitude to about 5,085 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 17.8 | 515 ft | 30.7 | 1,419 ft |
| February | 22.4 | 841 ft | 35.0 | 1,714 ft |
| March | 33.5 | 1,612 ft | 46.5 | 2,488 ft |
| April | 43.7 | 2,302 ft | 57.5 | 3,208 ft |
| May | 53.5 | 2,949 ft | 67.6 | 3,853 ft |
| June | 63.1 | 3,567 ft | 77.0 | 4,439 ft |
| July | 71.3 | 4,085 ft | 87.6 | 5,085 ft ▲ |
| August | 69.7 | 3,985 ft | 86.4 | 5,013 ft ▲ |
| September | 58.4 | 3,266 ft | 74.6 | 4,291 ft |
| October | 44.5 | 2,355 ft | 59.0 | 3,305 ft |
| November | 31.0 | 1,440 ft | 44.7 | 2,368 ft |
| December | 21.2 | 756 ft | 34.2 | 1,660 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 KJDN
DENSITY ALTITUDE caution
Field elevation 2,667 ft — the air behaves like 5,110 ft.
- PRESSURE ALT
- 2,669 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- 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 Montana fields
- 8U1 — Sand Springs Strip
Sand Springs · elev 3,180 ft
- 37S — Fort Peck
Fort Peck · elev 2,290 ft
- KGGW — Wokal Field/Glasgow-Valley County
Glasgow · elev 2,296 ft
- 4U6 — Circle Town County
Circle · elev 2,441 ft
- 7S2 — Winnett
Winnett · elev 2,989 ft
- 6U7 — Hysham
Hysham · elev 2,624 ft
- 6U5 — Hinsdale
Hinsdale · elev 2,220 ft
- 1S3 — Tillitt Field
Forsyth · elev 2,729 ft
Frequently asked questions
How high does density altitude get at KJDN in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Jordan reaches roughly 5,085 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 KJDN on an average day?
It swings with the seasons: from roughly 515 ft at the coldest month's average temperature to about 4,085 ft at the warmest month's — all from a constant field elevation of 2,667 ft. The month-by-month table above carries the full year.
What is the field elevation of Jordan?
2,667 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KJDN (ICAO) / JDN (FAA), in Jordan, Montana.