Tallahassee, Florida · field elev 83 ft
Density Altitude at Tallahassee International (KTLH)
Tallahassee International sits at 83 ft, and even a typical July afternoon (93 °F) only lifts density altitude to about 2,284 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 | 51.0 | −411 ft | 63.7 | 428 ft |
| February | 54.4 | −184 ft | 67.8 | 694 ft |
| March | 60.0 | 186 ft | 74.2 | 1,103 ft |
| April | 66.6 | 616 ft | 80.7 | 1,513 ft |
| May | 74.8 | 1,141 ft | 88.2 | 1,978 ft |
| June | 81.2 | 1,544 ft | 92.1 | 2,217 ft |
| July | 82.9 | 1,650 ft | 93.2 | 2,284 ft |
| August | 82.2 | 1,607 ft | 92.3 | 2,229 ft |
| September | 79.6 | 1,444 ft | 90.4 | 2,113 ft |
| October | 70.2 | 848 ft | 83.0 | 1,656 ft |
| November | 59.6 | 160 ft | 72.8 | 1,014 ft |
| December | 53.5 | −244 ft | 66.1 | 584 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 KTLH
DENSITY ALTITUDE
Field elevation 83 ft — the air behaves like 2,272 ft.
- PRESSURE ALT
- 84 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
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- 2J9 — Quincy Municipal
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- 2J0 — Wakulla County
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- F95 — Calhoun County
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- KFPY — Perry-Foley
Perry · elev 44 ft
- KMAI — Marianna Municipal
Marianna · elev 111 ft
- KAAF — Apalachicola Regional-Cleve Randolph Field
Apalachicola · elev 20 ft
- F47 — St George Island
Apalachicola · elev 3 ft
Frequently asked questions
How high does density altitude get at KTLH in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Tallahassee International reaches roughly 2,284 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 KTLH on an average day?
It swings with the seasons: from roughly −411 ft at the coldest month's average temperature to about 1,650 ft at the warmest month's — all from a constant field elevation of 83 ft. The month-by-month table above carries the full year.
What is the field elevation of Tallahassee International?
83 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KTLH (ICAO) / TLH (FAA), in Tallahassee, Florida.