Winchester, Tennessee · field elev 979 ft
Density Altitude at Winchester Municipal (KBGF)
Winchester Municipal sits at 979 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 3,015 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 | 39.5 | −78 ft | 48.9 | 559 ft |
| February | 43.1 | 168 ft | 53.1 | 838 ft |
| March | 50.5 | 666 ft | 61.4 | 1,383 ft |
| April | 59.1 | 1,233 ft | 70.8 | 1,986 ft |
| May | 67.1 | 1,750 ft | 78.1 | 2,446 ft |
| June | 74.4 | 2,214 ft | 84.6 | 2,849 ft |
| July | 77.6 | 2,415 ft | 87.3 | 3,015 ft |
| August | 76.8 | 2,365 ft | 87.1 | 3,002 ft |
| September | 71.0 | 1,999 ft | 82.0 | 2,689 ft |
| October | 60.2 | 1,305 ft | 72.0 | 2,062 ft |
| November | 49.2 | 579 ft | 60.5 | 1,324 ft |
| December | 42.4 | 120 ft | 51.8 | 752 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 KBGF
DENSITY ALTITUDE
Field elevation 979 ft — the air behaves like 2,996 ft.
- PRESSURE ALT
- 980 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 Tennessee fields
- KUOS — Franklin County
Sewanee · elev 1,953 ft
- KTHA — Tullahoma Regional/Wm Northern Field
Tullahoma · elev 1,084 ft
- KAPT — Marion County/Brown Field
Jasper · elev 641 ft
- KFYM — Fayetteville Municipal
Fayetteville · elev 984 ft
- KSYI — Bomar Field/Shelbyville Municipal
Shelbyville · elev 800 ft
- KRNC — Warren County Meml
Mc Minnville · elev 1,032 ft
- KLUG — Ellington
Lewisburg · elev 718 ft
- KCHA — Lovell Field
Chattanooga · elev 683 ft
Frequently asked questions
How high does density altitude get at KBGF in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Winchester Municipal reaches roughly 3,015 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 KBGF on an average day?
It swings with the seasons: from roughly −78 ft at the coldest month's average temperature to about 2,415 ft at the warmest month's — all from a constant field elevation of 979 ft. The month-by-month table above carries the full year.
What is the field elevation of Winchester Municipal?
979 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KBGF (ICAO) / BGF (FAA), in Winchester, Tennessee.