Shamrock, Texas · field elev 2,369 ft
Density Altitude at Shamrock Municipal (2F1)
From a field elevation of 2,369 ft, a typical July afternoon at Shamrock Municipal (94 °F) raises density altitude to about 5,095 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 | 37.1 | 1,487 ft | 50.4 | 2,378 ft |
| February | 40.6 | 1,724 ft | 54.5 | 2,646 ft |
| March | 49.1 | 2,292 ft | 63.6 | 3,234 ft |
| April | 57.5 | 2,841 ft | 72.0 | 3,764 ft |
| May | 66.7 | 3,431 ft | 80.5 | 4,291 ft |
| June | 76.2 | 4,026 ft | 89.3 | 4,826 ft |
| July | 80.7 | 4,304 ft | 93.8 | 5,095 ft ▲ |
| August | 79.3 | 4,218 ft | 92.5 | 5,018 ft ▲ |
| September | 71.5 | 3,733 ft | 84.8 | 4,554 ft |
| October | 59.4 | 2,964 ft | 73.4 | 3,852 ft |
| November | 47.4 | 2,179 ft | 61.1 | 3,074 ft |
| December | 38.5 | 1,582 ft | 51.4 | 2,443 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 2F1
DENSITY ALTITUDE caution
Field elevation 2,369 ft — the air behaves like 5,107 ft.
- PRESSURE ALT
- 2,370 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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- T59 — Wheeler Municipal
Wheeler · elev 2,470 ft
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Mc Lean · elev 2,835 ft
- F06 — Marian Airpark
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- F21 — Memphis Municipal
Memphis · elev 2,102 ft
- 3E0 — Miami-Roberts County
Miami · elev 2,720 ft
- E34 — Smiley Johnson Municipal/Bass Field
Clarendon · elev 2,833 ft
- KHHF — Hemphill County
Canadian · elev 2,396 ft
- 28X — Green Acres Airfield
Pampa · elev 3,245 ft
Frequently asked questions
How high does density altitude get at 2F1 in summer?
On a typical July afternoon — around 94 °F at the nearest NOAA normals station — density altitude at Shamrock Municipal reaches roughly 5,095 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 2F1 on an average day?
It swings with the seasons: from roughly 1,487 ft at the coldest month's average temperature to about 4,304 ft at the warmest month's — all from a constant field elevation of 2,369 ft. The month-by-month table above carries the full year.
What is the field elevation of Shamrock Municipal?
2,369 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2F1 (FAA), in Shamrock, Texas.