Tulare, California · field elev 265 ft
Density Altitude at Mefford Field (KTLR)
Mefford Field sits at 265 ft, and even a typical July afternoon (94 °F) only lifts density altitude to about 2,542 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 | 46.9 | −461 ft | 55.3 | 101 ft |
| February | 51.4 | −159 ft | 61.3 | 496 ft |
| March | 56.2 | 161 ft | 66.9 | 860 ft |
| April | 60.6 | 450 ft | 72.7 | 1,231 ft |
| May | 68.0 | 930 ft | 80.6 | 1,729 ft |
| June | 75.1 | 1,383 ft | 88.8 | 2,237 ft |
| July | 80.2 | 1,704 ft | 93.8 | 2,542 ft |
| August | 79.0 | 1,629 ft | 93.2 | 2,505 ft |
| September | 74.2 | 1,326 ft | 88.3 | 2,206 ft |
| October | 65.1 | 743 ft | 77.8 | 1,554 ft |
| November | 53.9 | 8 ft | 64.4 | 698 ft |
| December | 46.6 | −482 ft | 55.4 | 108 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 KTLR
DENSITY ALTITUDE
Field elevation 265 ft — the air behaves like 2,554 ft.
- PRESSURE ALT
- 266 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 California fields
- KVIS — Visalia Municipal
Visalia · elev 293 ft
- 1Q1 — Kingtech Field
Strathmore · elev 426 ft
- KPTV — Porterville Municipal
Porterville · elev 443 ft
- KHJO — Hanford Municipal
Hanford · elev 240 ft
- D86 — Sequoia Field
Visalia · elev 313 ft
- O42 — Woodlake
Woodlake · elev 425 ft
- KDLO — Delano Municipal
Delano · elev 316 ft
- 0Q4 — Selma
Selma · elev 305 ft
Frequently asked questions
How high does density altitude get at KTLR in summer?
On a typical July afternoon — around 94 °F at the nearest NOAA normals station — density altitude at Mefford Field reaches roughly 2,542 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 KTLR on an average day?
It swings with the seasons: from roughly −482 ft at the coldest month's average temperature to about 1,704 ft at the warmest month's — all from a constant field elevation of 265 ft. The month-by-month table above carries the full year.
What is the field elevation of Mefford Field?
265 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KTLR (ICAO) / TLR (FAA), in Tulare, California.