Great Barrington, Massachusetts · field elev 739 ft
Density Altitude at Great Barrington (KGBR)
Great Barrington sits at 739 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,458 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 | 24.0 | −1,461 ft | 33.9 | −763 ft |
| February | 26.0 | −1,318 ft | 36.6 | −576 ft |
| March | 34.4 | −728 ft | 45.4 | 26 ft |
| April | 46.6 | 107 ft | 58.9 | 924 ft |
| May | 57.3 | 819 ft | 69.9 | 1,635 ft |
| June | 66.3 | 1,404 ft | 77.7 | 2,128 ft |
| July | 71.4 | 1,730 ft | 83.0 | 2,458 ft |
| August | 69.8 | 1,628 ft | 80.9 | 2,327 ft |
| September | 62.1 | 1,132 ft | 73.1 | 1,838 ft |
| October | 50.0 | 335 ft | 60.4 | 1,022 ft |
| November | 39.9 | −349 ft | 49.6 | 308 ft |
| December | 30.1 | −1,029 ft | 38.8 | −424 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 KGBR
DENSITY ALTITUDE
Field elevation 739 ft — the air behaves like 2,458 ft.
- PRESSURE ALT
- 740 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 Massachusetts fields
- KPSF — Pittsfield Municipal
Pittsfield · elev 1,189 ft
- KBAF — Westfield-Barnes Regional
Westfield/Springfield · elev 270 ft
- KAQW — Harriman-And-West
North Adams · elev 654 ft
- 7B2 — Northampton
Northampton · elev 121 ft
- KCEF — Westover Arb/Metro
Springfield/Chicopee · elev 241 ft
- 0B5 — Turners Falls
Montague · elev 359 ft
- KORE — Orange Municipal
Orange · elev 556 ft
- 3B0 — Southbridge Municipal
Southbridge · elev 699 ft
Frequently asked questions
How high does density altitude get at KGBR in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Great Barrington reaches roughly 2,458 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 KGBR on an average day?
It swings with the seasons: from roughly −1,461 ft at the coldest month's average temperature to about 1,730 ft at the warmest month's — all from a constant field elevation of 739 ft. The month-by-month table above carries the full year.
What is the field elevation of Great Barrington?
739 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KGBR (ICAO) / GBR (FAA), in Great Barrington, Massachusetts.