Westminster, Maryland · field elev 789 ft
Density Altitude at Carroll County Regional/Jack B Poage Field (KDMW)
Carroll County Regional/Jack B Poage Field sits at 789 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 2,636 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 | 31.6 | −861 ft | 39.5 | −314 ft |
| February | 34.1 | −687 ft | 42.9 | −82 ft |
| March | 41.8 | −157 ft | 51.8 | 517 ft |
| April | 53.2 | 610 ft | 64.5 | 1,349 ft |
| May | 62.3 | 1,207 ft | 73.2 | 1,905 ft |
| June | 70.4 | 1,728 ft | 80.8 | 2,382 ft |
| July | 74.6 | 1,994 ft | 84.9 | 2,636 ft |
| August | 72.9 | 1,886 ft | 83.1 | 2,525 ft |
| September | 66.5 | 1,478 ft | 76.7 | 2,126 ft |
| October | 55.4 | 755 ft | 65.4 | 1,407 ft |
| November | 44.9 | 54 ft | 53.9 | 656 ft |
| December | 36.1 | −548 ft | 43.7 | −27 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 KDMW
DENSITY ALTITUDE
Field elevation 789 ft — the air behaves like 2,642 ft.
- PRESSURE ALT
- 790 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 Maryland fields
- 2W2 — Clearview Airpark
Westminster · elev 799 ft
- KFDK — Frederick Municipal
Frederick · elev 309 ft
- W50 — Davis
Laytonsville · elev 609 ft
- KGAI — Montgomery County Airpark
Gaithersburg · elev 539 ft
- W42 — Fallston
Fallston · elev 460 ft
- KBWI — Baltimore/Washington International Thurgood Marshall
Baltimore · elev 143 ft
- KMTN — Martin State
Baltimore · elev 22 ft
- KFME — Fort Meade Exec
Fort Meade (Odenton) · elev 150 ft
Frequently asked questions
How high does density altitude get at KDMW in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Carroll County Regional/Jack B Poage Field reaches roughly 2,636 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 KDMW on an average day?
It swings with the seasons: from roughly −861 ft at the coldest month's average temperature to about 1,994 ft at the warmest month's — all from a constant field elevation of 789 ft. The month-by-month table above carries the full year.
What is the field elevation of Carroll County Regional/Jack B Poage Field?
789 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KDMW (ICAO) / DMW (FAA), in Westminster, Maryland.