Clarendon, Texas · field elev 2,833 ft
Density Altitude at Smiley Johnson Municipal/Bass Field (E34)
From a field elevation of 2,833 ft, a typical July afternoon at Smiley Johnson Municipal/Bass Field (95 °F) raises density altitude to about 5,705 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 | 38.1 | 2,131 ft | 52.5 | 3,088 ft |
| February | 41.5 | 2,360 ft | 56.3 | 3,335 ft |
| March | 49.7 | 2,905 ft | 65.0 | 3,892 ft |
| April | 58.0 | 3,445 ft | 73.1 | 4,400 ft |
| May | 67.5 | 4,050 ft | 81.6 | 4,924 ft |
| June | 76.8 | 4,629 ft | 90.2 | 5,443 ft ▲ |
| July | 80.8 | 4,875 ft | 94.6 | 5,705 ft ▲ |
| August | 79.5 | 4,795 ft | 93.5 | 5,640 ft ▲ |
| September | 71.6 | 4,307 ft | 85.6 | 5,166 ft ▲ |
| October | 59.7 | 3,554 ft | 74.5 | 4,487 ft |
| November | 47.8 | 2,779 ft | 62.4 | 3,727 ft |
| December | 39.3 | 2,212 ft | 53.3 | 3,140 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 E34
DENSITY ALTITUDE caution
Field elevation 2,833 ft — the air behaves like 5,728 ft.
- PRESSURE ALT
- 2,835 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
- F21 — Memphis Municipal
Memphis · elev 2,102 ft
- 2E7 — Mc Lean/Gray County
Mc Lean · elev 2,835 ft
- 55T — Eagles Aerodrome
Conway · elev 3,475 ft
- 28X — Green Acres Airfield
Pampa · elev 3,245 ft
- F06 — Marian Airpark
Wellington · elev 2,009 ft
- T45 — Panhandle-Carson County
Panhandle · elev 3,454 ft
- 2F1 — Shamrock Municipal
Shamrock · elev 2,369 ft
- KCDS — Childress Municipal
Childress · elev 1,954 ft
Frequently asked questions
How high does density altitude get at E34 in summer?
On a typical July afternoon — around 95 °F at the nearest NOAA normals station — density altitude at Smiley Johnson Municipal/Bass Field reaches roughly 5,705 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 E34 on an average day?
It swings with the seasons: from roughly 2,131 ft at the coldest month's average temperature to about 4,875 ft at the warmest month's — all from a constant field elevation of 2,833 ft. The month-by-month table above carries the full year.
What is the field elevation of Smiley Johnson Municipal/Bass Field?
2,833 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is E34 (FAA), in Clarendon, Texas.