Dover/Cheswold, Delaware · field elev 55 ft
Density Altitude at Delaware Airpark (33N)
Delaware Airpark sits at 55 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 1,864 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 | 36.0 | −1,471 ft | 44.4 | −892 ft |
| February | 38.2 | −1,318 ft | 47.4 | −688 ft |
| March | 45.0 | −851 ft | 54.5 | −212 ft |
| April | 55.5 | −145 ft | 66.0 | 543 ft |
| May | 64.4 | 439 ft | 74.4 | 1,082 ft |
| June | 73.2 | 1,005 ft | 82.7 | 1,604 ft |
| July | 77.9 | 1,303 ft | 86.9 | 1,864 ft |
| August | 76.2 | 1,196 ft | 85.1 | 1,753 ft |
| September | 70.1 | 807 ft | 79.2 | 1,385 ft |
| October | 59.2 | 99 ft | 68.9 | 730 ft |
| November | 48.7 | −600 ft | 58.0 | 20 ft |
| December | 40.3 | −1,173 ft | 48.6 | −607 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 33N
DENSITY ALTITUDE
Field elevation 55 ft — the air behaves like 1,870 ft.
- PRESSURE ALT
- 56 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 Delaware fields
- 38N — Smyrna
Smyrna · elev 18 ft
- 0N4 — Chandelle
Dover · elev 22 ft
- 15N — Jenkins
Wyoming · elev 53 ft
- KDOV — Dover AFB
Dover · elev 29 ft
- KEVY — Summit
Middletown · elev 70 ft
- D74 — Chorman
Farmington · elev 65 ft
- KILG — New Castle
Wilmington · elev 80 ft
- KGED — Delaware Coastal
Georgetown · elev 53 ft
Frequently asked questions
How high does density altitude get at 33N in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Delaware Airpark reaches roughly 1,864 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 33N on an average day?
It swings with the seasons: from roughly −1,471 ft at the coldest month's average temperature to about 1,303 ft at the warmest month's — all from a constant field elevation of 55 ft. The month-by-month table above carries the full year.
What is the field elevation of Delaware Airpark?
55 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 33N (FAA), in Dover/Cheswold, Delaware.