Sulphur Springs, Texas · field elev 489 ft
Density Altitude at Sulphur Springs Municipal (KSLR)
Sulphur Springs Municipal sits at 489 ft, and even a typical August afternoon (95 °F) only lifts density altitude to about 2,881 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 | 44.6 | −339 ft | 55.2 | 372 ft |
| February | 48.7 | −62 ft | 59.5 | 655 ft |
| March | 56.1 | 431 ft | 67.0 | 1,142 ft |
| April | 63.7 | 928 ft | 74.9 | 1,645 ft |
| May | 72.3 | 1,481 ft | 82.4 | 2,115 ft |
| June | 80.2 | 1,978 ft | 89.9 | 2,577 ft |
| July | 84.1 | 2,220 ft | 94.2 | 2,838 ft |
| August | 84.0 | 2,214 ft | 94.9 | 2,881 ft |
| September | 77.4 | 1,803 ft | 88.9 | 2,516 ft |
| October | 66.3 | 1,096 ft | 78.2 | 1,853 ft |
| November | 55.2 | 372 ft | 66.3 | 1,096 ft |
| December | 46.7 | −197 ft | 57.3 | 510 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 KSLR
DENSITY ALTITUDE
Field elevation 489 ft — the air behaves like 2,887 ft.
- PRESSURE ALT
- 490 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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Frequently asked questions
How high does density altitude get at KSLR in summer?
On a typical August afternoon — around 95 °F at the nearest NOAA normals station — density altitude at Sulphur Springs Municipal reaches roughly 2,881 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 KSLR on an average day?
It swings with the seasons: from roughly −339 ft at the coldest month's average temperature to about 2,220 ft at the warmest month's — all from a constant field elevation of 489 ft. The month-by-month table above carries the full year.
What is the field elevation of Sulphur Springs Municipal?
489 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KSLR (ICAO) / SLR (FAA), in Sulphur Springs, Texas.