Fitchburg, Massachusetts · field elev 345 ft
Density Altitude at Fitchburg Municipal (KFIT)
Fitchburg Municipal sits at 345 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,001 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 | 24.9 | −1,891 ft | 34.2 | −1,234 ft |
| February | 27.1 | −1,734 ft | 37.3 | −1,019 ft |
| March | 35.3 | −1,157 ft | 45.4 | −464 ft |
| April | 46.9 | −362 ft | 58.4 | 405 ft |
| May | 57.8 | 365 ft | 69.5 | 1,125 ft |
| June | 67.0 | 964 ft | 78.0 | 1,664 ft |
| July | 72.4 | 1,310 ft | 83.4 | 2,001 ft |
| August | 70.7 | 1,202 ft | 81.7 | 1,896 ft |
| September | 62.8 | 693 ft | 74.2 | 1,425 ft |
| October | 50.7 | −106 ft | 61.8 | 627 ft |
| November | 40.2 | −819 ft | 50.1 | −147 ft |
| December | 30.8 | −1,472 ft | 39.7 | −853 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 KFIT
DENSITY ALTITUDE
Field elevation 345 ft — the air behaves like 1,976 ft.
- PRESSURE ALT
- 346 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
- 3B3 — Sterling
Sterling · elev 459 ft
- KGDM — Gardner Municipal
Gardner · elev 954 ft
- 6B6 — Minute Man Air Field
Stow · elev 280 ft
- KORH — Worcester Regional
Worcester · elev 1,009 ft
- 60M — Spencer
Spencer · elev 1,043 ft
- KBED — Laurence G Hanscom Field
Bedford · elev 132 ft
- KORE — Orange Municipal
Orange · elev 556 ft
- 1B6 — Hopedale Industrial Park
Hopedale · elev 269 ft
Frequently asked questions
How high does density altitude get at KFIT in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Fitchburg Municipal reaches roughly 2,001 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 KFIT on an average day?
It swings with the seasons: from roughly −1,891 ft at the coldest month's average temperature to about 1,310 ft at the warmest month's — all from a constant field elevation of 345 ft. The month-by-month table above carries the full year.
What is the field elevation of Fitchburg Municipal?
345 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFIT (ICAO) / FIT (FAA), in Fitchburg, Massachusetts.