Kountze/Silsbee, Texas · field elev 71 ft
Density Altitude at Hawthorne Field (45R)
Hawthorne Field sits at 71 ft, and even a typical August afternoon (93 °F) only lifts density altitude to about 2,282 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 | 50.5 | −459 ft | 61.6 | 276 ft |
| February | 54.7 | −179 ft | 65.9 | 556 ft |
| March | 61.9 | 296 ft | 72.9 | 1,006 ft |
| April | 67.3 | 647 ft | 78.9 | 1,385 ft |
| May | 75.1 | 1,146 ft | 85.7 | 1,809 ft |
| June | 80.8 | 1,505 ft | 90.4 | 2,099 ft |
| July | 82.9 | 1,636 ft | 92.6 | 2,233 ft |
| August | 83.1 | 1,648 ft | 93.4 | 2,282 ft |
| September | 78.4 | 1,354 ft | 88.8 | 2,000 ft |
| October | 68.9 | 750 ft | 80.5 | 1,486 ft |
| November | 59.3 | 126 ft | 70.9 | 878 ft |
| December | 51.8 | −372 ft | 62.7 | 348 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 45R
DENSITY ALTITUDE
Field elevation 71 ft — the air behaves like 2,257 ft.
- PRESSURE ALT
- 72 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
- KBMT — Beaumont Municipal
Beaumont · elev 32 ft
- T12 — Kirbyville
Kirbyville · elev 121 ft
- KBPT — Jack Brooks Regional
Beaumont/Port Arthur · elev 15 ft
- T78 — Liberty Municipal
Liberty · elev 70 ft
- 09R — Tyler County
Woodville · elev 388 ft
- KORG — Orange County
Orange · elev 13 ft
- T90 — Chambers County/Winnie Stowell
Winnie/Stowell · elev 24 ft
- KJAS — Jasper County/Bell Field
Jasper · elev 213 ft
Frequently asked questions
How high does density altitude get at 45R in summer?
On a typical August afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Hawthorne Field reaches roughly 2,282 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 45R on an average day?
It swings with the seasons: from roughly −459 ft at the coldest month's average temperature to about 1,648 ft at the warmest month's — all from a constant field elevation of 71 ft. The month-by-month table above carries the full year.
What is the field elevation of Hawthorne Field?
71 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 45R (FAA), in Kountze/Silsbee, Texas.