Dimmitt, Texas · field elev 3,883 ft
Density Altitude at Dimmitt Municipal (T55)
From a field elevation of 3,883 ft, a typical July afternoon at Dimmitt Municipal (92 °F) raises density altitude to about 6,804 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 36.8 | 3,346 ft | 51.4 | 4,310 ft |
| February | 40.2 | 3,574 ft | 55.8 | 4,594 ft |
| March | 47.8 | 4,076 ft | 64.1 | 5,121 ft ▲ |
| April | 55.4 | 4,568 ft | 72.3 | 5,633 ft ▲ |
| May | 65.2 | 5,191 ft | 80.9 | 6,158 ft ▲ |
| June | 74.8 | 5,786 ft | 89.7 | 6,685 ft ▲ |
| July | 77.6 | 5,958 ft | 91.7 | 6,804 ft ▲ |
| August | 76.2 | 5,872 ft | 90.4 | 6,727 ft ▲ |
| September | 68.9 | 5,422 ft | 83.3 | 6,303 ft ▲ |
| October | 57.7 | 4,716 ft | 72.8 | 5,663 ft ▲ |
| November | 45.7 | 3,938 ft | 60.7 | 4,907 ft |
| December | 37.5 | 3,393 ft | 51.4 | 4,310 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 T55
DENSITY ALTITUDE caution
Field elevation 3,883 ft — the air behaves like 6,821 ft.
- PRESSURE ALT
- 3,885 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 T55 in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Dimmitt Municipal reaches roughly 6,804 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 T55 on an average day?
It swings with the seasons: from roughly 3,346 ft at the coldest month's average temperature to about 5,958 ft at the warmest month's — all from a constant field elevation of 3,883 ft. The month-by-month table above carries the full year.
What is the field elevation of Dimmitt Municipal?
3,883 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is T55 (FAA), in Dimmitt, Texas.