Lawrence, Massachusetts · field elev 148 ft
Density Altitude at Lawrence Municipal (KLWM)
Lawrence Municipal sits at 148 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 1,748 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 | 27.1 | −1,981 ft | 34.8 | −1,438 ft |
| February | 29.1 | −1,839 ft | 37.5 | −1,250 ft |
| March | 36.7 | −1,306 ft | 45.3 | −715 ft |
| April | 47.6 | −559 ft | 57.7 | 115 ft |
| May | 58.0 | 135 ft | 68.5 | 819 ft |
| June | 67.2 | 735 ft | 77.3 | 1,379 ft |
| July | 73.2 | 1,119 ft | 83.2 | 1,748 ft |
| August | 71.6 | 1,017 ft | 81.6 | 1,649 ft |
| September | 63.8 | 515 ft | 73.8 | 1,158 ft |
| October | 52.2 | −250 ft | 61.8 | 384 ft |
| November | 42.3 | −920 ft | 50.6 | −357 ft |
| December | 32.7 | −1,585 ft | 40.1 | −1,071 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 KLWM
DENSITY ALTITUDE
Field elevation 148 ft — the air behaves like 1,736 ft.
- PRESSURE ALT
- 149 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
- KBVY — Beverly Regional
Beverly · elev 107 ft
- 2B2 — Plum Island
Newburyport · elev 11 ft
- KBED — Laurence G Hanscom Field
Bedford · elev 132 ft
- KBOS — General Edward Lawrence Logan International
Boston · elev 19 ft
- 6B6 — Minute Man Air Field
Stow · elev 280 ft
- KFIT — Fitchburg Municipal
Fitchburg · elev 345 ft
- KOWD — Norwood Meml
Norwood · elev 49 ft
- 3B3 — Sterling
Sterling · elev 459 ft
Frequently asked questions
How high does density altitude get at KLWM in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Lawrence Municipal reaches roughly 1,748 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 KLWM on an average day?
It swings with the seasons: from roughly −1,981 ft at the coldest month's average temperature to about 1,119 ft at the warmest month's — all from a constant field elevation of 148 ft. The month-by-month table above carries the full year.
What is the field elevation of Lawrence Municipal?
148 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLWM (ICAO) / LWM (FAA), in Lawrence, Massachusetts.