Readington, New Jersey · field elev 190 ft
Density Altitude at Solberg/Hunterdon (N51)
Solberg/Hunterdon sits at 190 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 1,942 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 | 29.0 | −1,793 ft | 38.7 | −1,115 ft |
| February | 30.4 | −1,694 ft | 41.3 | −936 ft |
| March | 38.4 | −1,136 ft | 49.5 | −379 ft |
| April | 49.2 | −399 ft | 62.1 | 456 ft |
| May | 58.9 | 246 ft | 71.7 | 1,075 ft |
| June | 68.4 | 864 ft | 80.5 | 1,631 ft |
| July | 73.7 | 1,203 ft | 85.5 | 1,942 ft |
| August | 71.7 | 1,075 ft | 83.4 | 1,812 ft |
| September | 65.0 | 645 ft | 76.7 | 1,393 ft |
| October | 52.7 | −165 ft | 64.4 | 606 ft |
| November | 42.3 | −868 ft | 53.5 | −111 ft |
| December | 33.9 | −1,449 ft | 43.3 | −799 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 N51
DENSITY ALTITUDE
Field elevation 190 ft — the air behaves like 1,973 ft.
- PRESSURE ALT
- 191 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 Jersey fields
- KSMQ — Somerset
Somerville · elev 106 ft
- 47N — Central Jersey Regional
Manville · elev 86 ft
- N40 — Sky Manor
Pittstown · elev 560 ft
- 39N — Princeton
Princeton/Rocky Hill · elev 128 ft
- N85 — Alexandria
Pittstown · elev 480 ft
- N05 — Hackettstown
Hackettstown · elev 670 ft
- KTTN — Trenton Mercer
Trenton · elev 213 ft
- KMMU — Morristown Municipal
Morristown · elev 187 ft
Frequently asked questions
How high does density altitude get at N51 in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Solberg/Hunterdon reaches roughly 1,942 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 N51 on an average day?
It swings with the seasons: from roughly −1,793 ft at the coldest month's average temperature to about 1,203 ft at the warmest month's — all from a constant field elevation of 190 ft. The month-by-month table above carries the full year.
What is the field elevation of Solberg/Hunterdon?
190 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is N51 (FAA), in Readington, New Jersey.