Apache Creek, New Mexico · field elev 7,681 ft
Density Altitude at Jewett Mesa (13Q)
Jewett Mesa is a genuine high-and-hot field: from 7,681 ft of elevation, a typical July afternoon (85 °F) pushes density altitude to about 11,015 ft — the airplane performs like it is 3,334 ft above the field before the wheels roll.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 32.7 | 7,772 ft | 51.9 | 9,004 ft ⚠ |
| February | 35.6 | 7,962 ft | 54.6 | 9,172 ft ⚠ |
| March | 40.1 | 8,254 ft | 60.9 | 9,561 ft ⚠ |
| April | 45.9 | 8,625 ft | 67.2 | 9,945 ft ⚠ |
| May | 52.5 | 9,041 ft | 75.4 | 10,435 ft ⚠ |
| June | 61.2 | 9,580 ft | 85.0 | 10,998 ft ⚠ |
| July | 66.4 | 9,896 ft | 85.3 | 11,015 ft ⚠ |
| August | 64.5 | 9,781 ft | 81.8 | 10,812 ft ⚠ |
| September | 58.8 | 9,432 ft | 78.5 | 10,618 ft ⚠ |
| October | 48.8 | 8,809 ft | 71.0 | 10,173 ft ⚠ |
| November | 39.3 | 8,202 ft | 60.7 | 9,549 ft ⚠ |
| December | 32.6 | 7,766 ft | 52.3 | 9,029 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 13Q
DENSITY ALTITUDE high DA
Field elevation 7,681 ft — the air behaves like 10,998 ft.
- PRESSURE ALT
- 7,683 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 New Mexico fields
- T16 — Reserve
Reserve · elev 6,365 ft
- E94 — Glenwood
Glenwood · elev 5,433 ft
- KXNI — Andrew Othole Meml
Zuni · elev 6,371 ft
- N29 — Magdalena
Magdalena · elev 6,730 ft
- 94E — Whiskey Creek
Silver City · elev 6,126 ft
- KGNT — Grants-Milan Municipal
Grants · elev 6,537 ft
- KTCS — Truth Or Consequences Municipal
Truth Or Consequences · elev 4,862 ft
- KSVC — Grant County
Silver City · elev 5,446 ft
Frequently asked questions
How high does density altitude get at 13Q in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Jewett Mesa reaches roughly 11,015 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 13Q on an average day?
It swings with the seasons: from roughly 7,766 ft at the coldest month's average temperature to about 9,896 ft at the warmest month's — all from a constant field elevation of 7,681 ft. The month-by-month table above carries the full year.
What is the field elevation of Jewett Mesa?
7,681 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 13Q (FAA), in Apache Creek, New Mexico.