Bowdoinham, Maine · field elev 61 ft
Density Altitude at Merrymeeting Field (08B)
Merrymeeting Field sits at 61 ft, and even a typical July afternoon (79 °F) only lifts density altitude to about 1,354 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 | 20.7 | −2,549 ft | 31.1 | −1,806 ft |
| February | 21.5 | −2,491 ft | 33.5 | −1,638 ft |
| March | 30.6 | −1,842 ft | 40.8 | −1,131 ft |
| April | 41.8 | −1,062 ft | 52.5 | −338 ft |
| May | 52.0 | −371 ft | 63.1 | 362 ft |
| June | 61.7 | 271 ft | 72.3 | 955 ft |
| July | 68.0 | 680 ft | 78.6 | 1,354 ft |
| August | 66.9 | 609 ft | 78.3 | 1,335 ft |
| September | 59.3 | 113 ft | 70.5 | 840 ft |
| October | 48.0 | −640 ft | 58.6 | 67 ft |
| November | 37.2 | −1,380 ft | 46.8 | −721 ft |
| December | 27.1 | −2,090 ft | 36.5 | −1,428 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 08B
DENSITY ALTITUDE
Field elevation 61 ft — the air behaves like 1,379 ft.
- PRESSURE ALT
- 62 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
- KBXM — Brunswick Exec
Brunswick · elev 75 ft
- KIWI — Wiscasset
Wiscasset · elev 70 ft
- ME6 — Wales
Wales · elev 210 ft
- KLEW — Auburn/Lewiston Municipal
Auburn/Lewiston · elev 288 ft
- KAUG — Augusta State
Augusta · elev 352 ft
- B10 — Bowman Field
Livermore Falls · elev 324 ft
- 81B — Oxford County Regional
Oxford · elev 345 ft
- KPWM — Portland International Jetport
Portland · elev 76 ft
Frequently asked questions
How high does density altitude get at 08B in summer?
On a typical July afternoon — around 79 °F at the nearest NOAA normals station — density altitude at Merrymeeting Field reaches roughly 1,354 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 08B on an average day?
It swings with the seasons: from roughly −2,549 ft at the coldest month's average temperature to about 680 ft at the warmest month's — all from a constant field elevation of 61 ft. The month-by-month table above carries the full year.
What is the field elevation of Merrymeeting Field?
61 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 08B (FAA), in Bowdoinham, Maine.