Longmont, Colorado · field elev 5,055 ft
Density Altitude at Vance Brand (KLMO)
Vance Brand is a genuine high-and-hot field: from 5,055 ft of elevation, a typical July afternoon (91 °F) pushes density altitude to about 8,167 ft — the airplane performs like it is 3,112 ft above the field before the wheels roll.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 29.4 | 4,301 ft | 44.5 | 5,305 ft ▲ |
| February | 32.0 | 4,477 ft | 46.8 | 5,455 ft ▲ |
| March | 41.5 | 5,109 ft | 56.8 | 6,096 ft ▲ |
| April | 47.8 | 5,520 ft | 63.2 | 6,499 ft ▲ |
| May | 57.1 | 6,115 ft | 72.7 | 7,085 ft ▲ |
| June | 67.2 | 6,747 ft | 83.9 | 7,760 ft ▲ |
| July | 73.1 | 7,110 ft | 90.8 | 8,167 ft ⚠ |
| August | 70.8 | 6,969 ft | 87.8 | 7,991 ft ▲ |
| September | 63.0 | 6,486 ft | 80.3 | 7,545 ft ▲ |
| October | 49.5 | 5,630 ft | 66.2 | 6,686 ft ▲ |
| November | 38.5 | 4,911 ft | 53.5 | 5,886 ft ▲ |
| December | 29.6 | 4,314 ft | 44.8 | 5,325 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 KLMO
DENSITY ALTITUDE high DA
Field elevation 5,055 ft — the air behaves like 8,179 ft.
- PRESSURE ALT
- 5,057 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 Colorado fields
- KBDU — Boulder Municipal
Boulder · elev 5,288 ft
- KEIK — Erie Municipal
Erie · elev 5,119 ft
- KBJC — Rocky Mountain Metro
Denver · elev 5,673 ft
- KFNL — Northern Colorado Regional
Fort Collins/Loveland · elev 5,020 ft
- 18V — Platte Valley Airpark
Hudson · elev 4,965 ft
- 11V — Easton/Valley View
Greeley · elev 4,820 ft
- KDEN — Denver International
Denver · elev 5,434 ft
- KGXY — Greeley-Weld County
Greeley · elev 4,697 ft
Frequently asked questions
How high does density altitude get at KLMO in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Vance Brand reaches roughly 8,167 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 KLMO on an average day?
It swings with the seasons: from roughly 4,301 ft at the coldest month's average temperature to about 7,110 ft at the warmest month's — all from a constant field elevation of 5,055 ft. The month-by-month table above carries the full year.
What is the field elevation of Vance Brand?
5,055 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLMO (ICAO) / LMO (FAA), in Longmont, Colorado.