Oakland, Maryland · field elev 2,933 ft
Density Altitude at Garrett County (2G4)
Garrett County sits at 2,933 ft, and even a typical July afternoon (77 °F) only lifts density altitude to about 4,745 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 | 25.8 | 1,411 ft | 34.0 | 1,977 ft |
| February | 28.5 | 1,599 ft | 37.5 | 2,215 ft |
| March | 36.2 | 2,127 ft | 46.2 | 2,797 ft |
| April | 47.7 | 2,896 ft | 58.9 | 3,625 ft |
| May | 56.3 | 3,458 ft | 66.5 | 4,109 ft |
| June | 63.5 | 3,919 ft | 73.2 | 4,529 ft |
| July | 67.4 | 4,166 ft | 76.7 | 4,745 ft |
| August | 66.3 | 4,097 ft | 75.7 | 4,683 ft |
| September | 60.5 | 3,728 ft | 70.2 | 4,342 ft |
| October | 49.9 | 3,041 ft | 59.8 | 3,683 ft |
| November | 39.4 | 2,343 ft | 48.6 | 2,956 ft |
| December | 30.6 | 1,744 ft | 38.5 | 2,282 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 2G4
DENSITY ALTITUDE
Field elevation 2,933 ft — the air behaves like 4,764 ft.
- PRESSURE ALT
- 2,935 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
- KCBE — Greater Cumberland Regional
Cumberland · elev 758 ft
- 1W3 — Mexico Farms
Cumberland · elev 607 ft
- KHGR — Hagerstown Regional/Richard A Henson Field
Hagerstown · elev 703 ft
- KFDK — Frederick Municipal
Frederick · elev 309 ft
- W50 — Davis
Laytonsville · elev 609 ft
- KGAI — Montgomery County Airpark
Gaithersburg · elev 539 ft
- 2W2 — Clearview Airpark
Westminster · elev 799 ft
- KDMW — Carroll County Regional/Jack B Poage Field
Westminster · elev 789 ft
Frequently asked questions
How high does density altitude get at 2G4 in summer?
On a typical July afternoon — around 77 °F at the nearest NOAA normals station — density altitude at Garrett County reaches roughly 4,745 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 2G4 on an average day?
It swings with the seasons: from roughly 1,411 ft at the coldest month's average temperature to about 4,166 ft at the warmest month's — all from a constant field elevation of 2,933 ft. The month-by-month table above carries the full year.
What is the field elevation of Garrett County?
2,933 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2G4 (FAA), in Oakland, Maryland.