Columbus, Texas · field elev 242 ft
Density Altitude at Robert R Wells Jr (66R)
Robert R Wells Jr sits at 242 ft, and even a typical August afternoon (98 °F) only lifts density altitude to about 2,761 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 | 51.3 | −194 ft | 64.1 | 650 ft |
| February | 55.6 | 93 ft | 68.2 | 915 ft |
| March | 62.1 | 520 ft | 74.8 | 1,336 ft |
| April | 68.2 | 915 ft | 80.8 | 1,714 ft |
| May | 75.8 | 1,400 ft | 87.5 | 2,129 ft |
| June | 81.4 | 1,751 ft | 93.1 | 2,471 ft |
| July | 83.5 | 1,882 ft | 96.0 | 2,647 ft |
| August | 84.2 | 1,925 ft | 97.9 | 2,761 ft |
| September | 79.3 | 1,620 ft | 93.0 | 2,465 ft |
| October | 70.6 | 1,069 ft | 85.2 | 1,987 ft |
| November | 60.5 | 415 ft | 73.8 | 1,273 ft |
| December | 53.4 | −53 ft | 66.3 | 793 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 66R
DENSITY ALTITUDE
Field elevation 242 ft — the air behaves like 2,767 ft.
- PRESSURE ALT
- 243 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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- KARM — Wharton Regional
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- T26 — Flying V Ranch
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- 2H5 — Houston Fort Bend
Houston · elev 105 ft
- KTME — Houston Exec
Houston · elev 166 ft
- 94R — Gav Air
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Frequently asked questions
How high does density altitude get at 66R in summer?
On a typical August afternoon — around 98 °F at the nearest NOAA normals station — density altitude at Robert R Wells Jr reaches roughly 2,761 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 66R on an average day?
It swings with the seasons: from roughly −194 ft at the coldest month's average temperature to about 1,925 ft at the warmest month's — all from a constant field elevation of 242 ft. The month-by-month table above carries the full year.
What is the field elevation of Robert R Wells Jr?
242 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 66R (FAA), in Columbus, Texas.