Lavina, Montana · field elev 3,512 ft
Density Altitude at Lavina (80S)
From a field elevation of 3,512 ft, a typical July afternoon at Lavina (87 °F) raises density altitude to about 6,075 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 23.4 | 1,967 ft | 35.9 | 2,825 ft |
| February | 25.7 | 2,127 ft | 39.3 | 3,054 ft |
| March | 33.3 | 2,649 ft | 47.9 | 3,624 ft |
| April | 41.8 | 3,221 ft | 56.3 | 4,170 ft |
| May | 51.5 | 3,860 ft | 66.0 | 4,787 ft |
| June | 60.6 | 4,445 ft | 75.5 | 5,377 ft ▲ |
| July | 69.1 | 4,981 ft | 87.0 | 6,075 ft ▲ |
| August | 67.1 | 4,856 ft | 86.4 | 6,039 ft ▲ |
| September | 56.8 | 4,202 ft | 75.0 | 5,346 ft ▲ |
| October | 44.0 | 3,367 ft | 59.4 | 4,369 ft |
| November | 32.5 | 2,594 ft | 46.1 | 3,506 ft |
| December | 24.2 | 2,023 ft | 36.6 | 2,873 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 80S
DENSITY ALTITUDE caution
Field elevation 3,512 ft — the air behaves like 6,075 ft.
- PRESSURE ALT
- 3,514 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 Montana fields
- 8U0 — Ryegate
Ryegate · elev 3,689 ft
- KRPX — Roundup
Roundup · elev 3,490 ft
- KBIL — Billings Logan International
Billings · elev 3,662 ft
- 6S8 — Laurel Municipal
Laurel · elev 3,543 ft
- KHWQ — Wheatland County At Harlowton
Harlowton · elev 4,312 ft
- 6S3 — Woltermann Meml
Columbus · elev 3,578 ft
- 7S2 — Winnett
Winnett · elev 2,989 ft
- KLWT — Lewistown Municipal
Lewistown · elev 4,170 ft
Frequently asked questions
How high does density altitude get at 80S in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Lavina reaches roughly 6,075 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 80S on an average day?
It swings with the seasons: from roughly 1,967 ft at the coldest month's average temperature to about 4,981 ft at the warmest month's — all from a constant field elevation of 3,512 ft. The month-by-month table above carries the full year.
What is the field elevation of Lavina?
3,512 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 80S (FAA), in Lavina, Montana.