Refugio, Texas · field elev 54 ft
Density Altitude at Rooke Field (KRFG)
Rooke Field sits at 54 ft, and even a typical August afternoon (95 °F) only lifts density altitude to about 2,352 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 | 54.6 | −206 ft | 66.1 | 548 ft |
| February | 58.5 | 52 ft | 69.2 | 748 ft |
| March | 64.0 | 412 ft | 74.3 | 1,074 ft |
| April | 70.4 | 825 ft | 80.5 | 1,465 ft |
| May | 76.9 | 1,239 ft | 86.0 | 1,807 ft |
| June | 82.2 | 1,571 ft | 91.4 | 2,139 ft |
| July | 83.8 | 1,671 ft | 93.2 | 2,249 ft |
| August | 84.6 | 1,720 ft | 94.9 | 2,352 ft |
| September | 80.8 | 1,484 ft | 90.8 | 2,102 ft |
| October | 72.9 | 985 ft | 84.1 | 1,689 ft |
| November | 63.5 | 380 ft | 74.9 | 1,112 ft |
| December | 56.3 | −93 ft | 68.1 | 677 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 KRFG
DENSITY ALTITUDE
Field elevation 54 ft — the air behaves like 2,358 ft.
- PRESSURE ALT
- 55 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 Texas fields
- TX2 — Chase Field Industrial
Beeville · elev 184 ft
- T69 — Sinton
Sinton · elev 48 ft
- KRKP — Aransas County
Rockport · elev 24 ft
- KTFP — Ingleside Regional
Ingleside · elev 18 ft
- 9R5 — Hunt
Portland · elev 38 ft
- KBEA — Beeville Municipal
Beeville · elev 273 ft
- KRAS — Mustang Beach
Port Aransas · elev 5 ft
- KCRP — Corpus Christi International
Corpus Christi · elev 46 ft
Frequently asked questions
How high does density altitude get at KRFG in summer?
On a typical August afternoon — around 95 °F at the nearest NOAA normals station — density altitude at Rooke Field reaches roughly 2,352 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 KRFG on an average day?
It swings with the seasons: from roughly −206 ft at the coldest month's average temperature to about 1,720 ft at the warmest month's — all from a constant field elevation of 54 ft. The month-by-month table above carries the full year.
What is the field elevation of Rooke Field?
54 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KRFG (ICAO) / RFG (FAA), in Refugio, Texas.