Princeton, Maine · field elev 265 ft
Density Altitude at Princeton Municipal (KPNN)
Princeton Municipal sits at 265 ft, and even a typical July afternoon (78 °F) only lifts density altitude to about 1,579 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 | 18.0 | −2,488 ft | 27.2 | −1,827 ft |
| February | 20.1 | −2,336 ft | 29.9 | −1,636 ft |
| March | 29.5 | −1,664 ft | 38.7 | −1,022 ft |
| April | 41.2 | −850 ft | 50.7 | −205 ft |
| May | 52.9 | −58 ft | 63.6 | 646 ft |
| June | 62.1 | 548 ft | 72.5 | 1,218 ft |
| July | 68.0 | 930 ft | 78.2 | 1,579 ft |
| August | 67.0 | 866 ft | 77.6 | 1,541 ft |
| September | 59.4 | 372 ft | 70.0 | 1,059 ft |
| October | 47.4 | −427 ft | 57.0 | 214 ft |
| November | 36.6 | −1,167 ft | 44.6 | −617 ft |
| December | 25.8 | −1,927 ft | 33.4 | −1,390 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 KPNN
DENSITY ALTITUDE
Field elevation 265 ft — the air behaves like 1,566 ft.
- PRESSURE ALT
- 266 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 Maine fields
- 66B — Gillespie Field
Meddybemps · elev 200 ft
- KEPM — Eastport Municipal
Eastport · elev 45 ft
- KMVM — Machias Valley
Machias · elev 96 ft
- 65B — Lubec Municipal
Lubec · elev 85 ft
- 43B — Deblois Flight Strip
Deblois · elev 218 ft
- ME2 — Cutler Regional
Cutler · elev 55 ft
- KLRG — Lincoln Regional
Lincoln · elev 208 ft
- KOLD — Dewitt Field/Old Town Municipal
Old Town · elev 127 ft
Frequently asked questions
How high does density altitude get at KPNN in summer?
On a typical July afternoon — around 78 °F at the nearest NOAA normals station — density altitude at Princeton Municipal reaches roughly 1,579 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 KPNN on an average day?
It swings with the seasons: from roughly −2,488 ft at the coldest month's average temperature to about 930 ft at the warmest month's — all from a constant field elevation of 265 ft. The month-by-month table above carries the full year.
What is the field elevation of Princeton Municipal?
265 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KPNN (ICAO) / PNN (FAA), in Princeton, Maine.