Tullahoma, Tennessee · field elev 1,084 ft
Density Altitude at Tullahoma Regional/Wm Northern Field (KTHA)
Tullahoma Regional/Wm Northern Field sits at 1,084 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 3,143 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 | 38.5 | −15 ft | 48.2 | 642 ft |
| February | 42.2 | 237 ft | 52.5 | 928 ft |
| March | 49.7 | 742 ft | 60.8 | 1,473 ft |
| April | 58.6 | 1,330 ft | 70.4 | 2,090 ft |
| May | 66.6 | 1,847 ft | 77.5 | 2,537 ft |
| June | 74.1 | 2,324 ft | 84.3 | 2,959 ft |
| July | 77.5 | 2,537 ft | 87.3 | 3,143 ft |
| August | 76.6 | 2,481 ft | 86.9 | 3,118 ft |
| September | 70.5 | 2,096 ft | 81.5 | 2,786 ft |
| October | 59.6 | 1,395 ft | 71.4 | 2,153 ft |
| November | 48.5 | 662 ft | 60.0 | 1,421 ft |
| December | 41.4 | 183 ft | 51.2 | 842 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 KTHA
DENSITY ALTITUDE
Field elevation 1,084 ft — the air behaves like 3,124 ft.
- PRESSURE ALT
- 1,085 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
- KSYI — Bomar Field/Shelbyville Municipal
Shelbyville · elev 800 ft
- KBGF — Winchester Municipal
Winchester · elev 979 ft
- KUOS — Franklin County
Sewanee · elev 1,953 ft
- KFYM — Fayetteville Municipal
Fayetteville · elev 984 ft
- KRNC — Warren County Meml
Mc Minnville · elev 1,032 ft
- KLUG — Ellington
Lewisburg · elev 718 ft
- KMBT — Murfreesboro Municipal
Murfreesboro · elev 614 ft
- KAPT — Marion County/Brown Field
Jasper · elev 641 ft
Frequently asked questions
How high does density altitude get at KTHA in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Tullahoma Regional/Wm Northern Field reaches roughly 3,143 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 KTHA on an average day?
It swings with the seasons: from roughly −15 ft at the coldest month's average temperature to about 2,537 ft at the warmest month's — all from a constant field elevation of 1,084 ft. The month-by-month table above carries the full year.
What is the field elevation of Tullahoma Regional/Wm Northern Field?
1,084 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KTHA (ICAO) / THA (FAA), in Tullahoma, Tennessee.