Brenham, Texas · field elev 318 ft
Density Altitude at Brenham Municipal (11R)
Brenham Municipal sits at 318 ft, and even a typical August afternoon (95 °F) only lifts density altitude to about 2,679 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 | 50.2 | −173 ft | 60.8 | 529 ft |
| February | 53.7 | 61 ft | 64.4 | 763 ft |
| March | 60.1 | 483 ft | 71.0 | 1,188 ft |
| April | 67.4 | 957 ft | 78.1 | 1,637 ft |
| May | 74.9 | 1,436 ft | 84.8 | 2,055 ft |
| June | 81.2 | 1,831 ft | 90.9 | 2,430 ft |
| July | 83.8 | 1,993 ft | 93.7 | 2,600 ft |
| August | 84.4 | 2,030 ft | 95.0 | 2,679 ft |
| September | 79.1 | 1,700 ft | 89.8 | 2,363 ft |
| October | 69.9 | 1,118 ft | 81.4 | 1,844 ft |
| November | 59.1 | 417 ft | 70.1 | 1,130 ft |
| December | 51.9 | −59 ft | 62.5 | 640 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 11R
DENSITY ALTITUDE
Field elevation 318 ft — the air behaves like 2,679 ft.
- PRESSURE ALT
- 319 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
- 60R — Navasota Municipal
Navasota · elev 229 ft
- KCLL — Easterwood Field
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- KRWV — Caldwell Municipal
Caldwell · elev 391 ft
- KCFD — Coulter Field
Bryan · elev 367 ft
- KGYB — Giddings-Lee County
Giddings · elev 484 ft
- KTME — Houston Exec
Houston · elev 166 ft
- 3T5 — Fayette Regional Air Center
La Grange · elev 324 ft
- 66R — Robert R Wells Jr
Columbus · elev 242 ft
Frequently asked questions
How high does density altitude get at 11R in summer?
On a typical August afternoon — around 95 °F at the nearest NOAA normals station — density altitude at Brenham Municipal reaches roughly 2,679 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 11R on an average day?
It swings with the seasons: from roughly −173 ft at the coldest month's average temperature to about 2,030 ft at the warmest month's — all from a constant field elevation of 318 ft. The month-by-month table above carries the full year.
What is the field elevation of Brenham Municipal?
318 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 11R (FAA), in Brenham, Texas.