Stonington, Maine · field elev 32 ft
Density Altitude at Stonington Municipal (93B)
Stonington Municipal sits at 32 ft, and even a typical July afternoon (77 °F) only lifts density altitude to about 1,218 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 | 19.8 | −2,651 ft | 29.5 | −1,956 ft |
| February | 21.9 | −2,499 ft | 32.2 | −1,765 ft |
| March | 30.1 | −1,913 ft | 39.7 | −1,243 ft |
| April | 41.3 | −1,133 ft | 51.5 | −441 ft |
| May | 52.1 | −400 ft | 62.9 | 313 ft |
| June | 61.0 | 189 ft | 71.5 | 869 ft |
| July | 66.8 | 567 ft | 77.0 | 1,218 ft |
| August | 66.0 | 515 ft | 76.4 | 1,180 ft |
| September | 58.8 | 45 ft | 69.5 | 740 ft |
| October | 47.7 | −696 ft | 57.4 | −48 ft |
| November | 37.2 | −1,416 ft | 45.6 | −839 ft |
| December | 26.6 | −2,162 ft | 34.9 | −1,576 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 93B
DENSITY ALTITUDE
Field elevation 32 ft — the air behaves like 1,218 ft.
- PRESSURE ALT
- 33 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
- ME5 — Banks
Swans Island · elev 100 ft
- 57B — Islesboro
Islesboro · elev 88 ft
- KRKD — Knox County Regional
Rockland · elev 55 ft
- KBST — Belfast Municipal
Belfast · elev 198 ft
- KBHB — Hancock County/Bar Harbor
Bar Harbor · elev 83 ft
- 0B2 — Brewer
Brewer · elev 125 ft
- KBGR — Bangor International
Bangor · elev 192 ft
- PG1 — Griffin Field
Levant · elev 200 ft
Frequently asked questions
How high does density altitude get at 93B in summer?
On a typical July afternoon — around 77 °F at the nearest NOAA normals station — density altitude at Stonington Municipal reaches roughly 1,218 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 93B on an average day?
It swings with the seasons: from roughly −2,651 ft at the coldest month's average temperature to about 567 ft at the warmest month's — all from a constant field elevation of 32 ft. The month-by-month table above carries the full year.
What is the field elevation of Stonington Municipal?
32 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 93B (FAA), in Stonington, Maine.