Ephrata, Washington · field elev 1,276 ft
Density Altitude at Ephrata Municipal (KEPH)
Ephrata Municipal sits at 1,276 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 3,498 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 | 29.6 | −393 ft | 35.6 | 24 ft |
| February | 34.9 | −24 ft | 43.2 | 543 ft |
| March | 42.9 | 523 ft | 54.0 | 1,265 ft |
| April | 50.8 | 1,053 ft | 63.1 | 1,858 ft |
| May | 60.4 | 1,683 ft | 73.3 | 2,508 ft |
| June | 67.2 | 2,121 ft | 80.0 | 2,927 ft |
| July | 75.3 | 2,634 ft | 89.3 | 3,498 ft |
| August | 73.7 | 2,534 ft | 87.9 | 3,413 ft |
| September | 64.5 | 1,948 ft | 78.5 | 2,834 ft |
| October | 50.9 | 1,060 ft | 62.4 | 1,813 ft |
| November | 37.6 | 162 ft | 45.7 | 712 ft |
| December | 29.6 | −393 ft | 35.5 | 17 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 KEPH
DENSITY ALTITUDE
Field elevation 1,276 ft — the air behaves like 3,480 ft.
- PRESSURE ALT
- 1,277 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 Washington fields
- KMWH — Grant County International
Moses Lake · elev 1,189 ft
- 80T — Quincy Municipal
Quincy · elev 1,271 ft
- W20 — Moses Lake Municipal
Moses Lake · elev 1,203 ft
- 5W1 — Wilson Creek
Wilson Creek · elev 1,430 ft
- 2S4 — Warden
Warden · elev 1,276 ft
- KEAT — Pangborn Meml
Wenatchee · elev 1,249 ft
- 2S5 — Waterville
Waterville · elev 2,645 ft
- 8W3 — Mansfield
Mansfield · elev 2,272 ft
Frequently asked questions
How high does density altitude get at KEPH in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Ephrata Municipal reaches roughly 3,498 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 KEPH on an average day?
It swings with the seasons: from roughly −393 ft at the coldest month's average temperature to about 2,634 ft at the warmest month's — all from a constant field elevation of 1,276 ft. The month-by-month table above carries the full year.
What is the field elevation of Ephrata Municipal?
1,276 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KEPH (ICAO) / EPH (FAA), in Ephrata, Washington.