Lebanon, New Hampshire · field elev 603 ft
Density Altitude at Lebanon Municipal (KLEB)
Lebanon Municipal sits at 603 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,273 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 | 19.8 | −1,933 ft | 30.3 | −1,185 ft |
| February | 22.4 | −1,746 ft | 33.9 | −933 ft |
| March | 31.9 | −1,073 ft | 43.0 | −306 ft |
| April | 44.3 | −218 ft | 56.6 | 605 ft |
| May | 56.7 | 611 ft | 69.7 | 1,455 ft |
| June | 65.1 | 1,159 ft | 77.9 | 1,974 ft |
| July | 70.3 | 1,493 ft | 82.7 | 2,273 ft |
| August | 68.6 | 1,384 ft | 81.1 | 2,174 ft |
| September | 60.7 | 874 ft | 72.9 | 1,658 ft |
| October | 48.6 | 73 ft | 59.8 | 815 ft |
| November | 37.2 | −704 ft | 46.8 | −49 ft |
| December | 26.8 | −1,432 ft | 35.5 | −822 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 KLEB
DENSITY ALTITUDE
Field elevation 603 ft — the air behaves like 2,292 ft.
- PRESSURE ALT
- 604 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 New Hampshire fields
- 2B3 — Parlin Field
Newport · elev 784 ft
- KCNH — Claremont Municipal
Claremont · elev 543 ft
- 2N2 — Newfound Valley
Bristol · elev 510 ft
- 1P1 — Plymouth Municipal
Plymouth · elev 506 ft
- 5B9 — Dean Meml
Haverhill · elev 582 ft
- 8B1 — Hawthorne-Feather Airpark
Hillsboro · elev 600 ft
- KLCI — Laconia Municipal
Laconia · elev 545 ft
- 4MB — Moultonborough
Moultonborough · elev 576 ft
Frequently asked questions
How high does density altitude get at KLEB in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Lebanon Municipal reaches roughly 2,273 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 KLEB on an average day?
It swings with the seasons: from roughly −1,933 ft at the coldest month's average temperature to about 1,493 ft at the warmest month's — all from a constant field elevation of 603 ft. The month-by-month table above carries the full year.
What is the field elevation of Lebanon Municipal?
603 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLEB (ICAO) / LEB (FAA), in Lebanon, New Hampshire.