Southbridge, Massachusetts · field elev 699 ft
Density Altitude at Southbridge Municipal (3B0)
Southbridge Municipal sits at 699 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 2,272 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 | 25.7 | −1,390 ft | 34.8 | −751 ft |
| February | 26.9 | −1,305 ft | 35.7 | −688 ft |
| March | 35.1 | −730 ft | 45.1 | −44 ft |
| April | 46.3 | 37 ft | 57.7 | 796 ft |
| May | 57.0 | 750 ft | 68.5 | 1,496 ft |
| June | 66.0 | 1,335 ft | 77.0 | 2,035 ft |
| July | 70.3 | 1,611 ft | 80.8 | 2,272 ft |
| August | 69.0 | 1,528 ft | 78.9 | 2,154 ft |
| September | 61.5 | 1,044 ft | 72.0 | 1,719 ft |
| October | 49.2 | 232 ft | 59.1 | 888 ft |
| November | 40.0 | −392 ft | 49.2 | 232 ft |
| December | 31.2 | −1,002 ft | 39.2 | −447 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 3B0
DENSITY ALTITUDE
Field elevation 699 ft — the air behaves like 2,285 ft.
- PRESSURE ALT
- 700 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
- 60M — Spencer
Spencer · elev 1,043 ft
- KORH — Worcester Regional
Worcester · elev 1,009 ft
- 3B3 — Sterling
Sterling · elev 459 ft
- KCEF — Westover Arb/Metro
Springfield/Chicopee · elev 241 ft
- 1B6 — Hopedale Industrial Park
Hopedale · elev 269 ft
- KGDM — Gardner Municipal
Gardner · elev 954 ft
- 7B2 — Northampton
Northampton · elev 121 ft
- KFIT — Fitchburg Municipal
Fitchburg · elev 345 ft
Frequently asked questions
How high does density altitude get at 3B0 in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Southbridge Municipal reaches roughly 2,272 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 3B0 on an average day?
It swings with the seasons: from roughly −1,390 ft at the coldest month's average temperature to about 1,611 ft at the warmest month's — all from a constant field elevation of 699 ft. The month-by-month table above carries the full year.
What is the field elevation of Southbridge Municipal?
699 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 3B0 (FAA), in Southbridge, Massachusetts.