Eureka, California · field elev 11 ft
Density Altitude at Murray Field (KEKA)
Murray Field sits at 11 ft, and even a typical August afternoon (64 °F) only lifts density altitude to about 359 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 | 47.9 | −709 ft | 55.1 | −226 ft |
| February | 48.4 | −675 ft | 55.4 | −206 ft |
| March | 49.2 | −621 ft | 56.1 | −160 ft |
| April | 50.8 | −514 ft | 57.4 | −74 ft |
| May | 53.7 | −319 ft | 59.6 | 71 ft |
| June | 56.0 | −166 ft | 61.9 | 222 ft |
| July | 57.7 | −54 ft | 63.1 | 300 ft |
| August | 58.5 | −1 ft | 64.0 | 359 ft |
| September | 57.2 | −87 ft | 63.9 | 353 ft |
| October | 54.3 | −279 ft | 61.9 | 222 ft |
| November | 50.5 | −534 ft | 57.8 | −47 ft |
| December | 47.4 | −743 ft | 54.7 | −253 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 KEKA
DENSITY ALTITUDE
Field elevation 11 ft — the air behaves like 359 ft.
- PRESSURE ALT
- 12 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 California fields
- O33 — Samoa Field
Eureka · elev 20 ft
- O19 — Kneeland
Eureka · elev 2,741 ft
- KACV — California Redwood Coast-Humboldt County
Arcata/Eureka · elev 222 ft
- KFOT — Rohnerville
Fortuna · elev 393 ft
- O21 — Hoopa
Hoopa · elev 356 ft
- D63 — Dinsmore
Dinsmore · elev 2,393 ft
- H47 — Hyampom
Hyampom · elev 1,277 ft
- S51 — Andy Mc Beth
Klamath Glen · elev 42 ft
Frequently asked questions
How high does density altitude get at KEKA in summer?
On a typical August afternoon — around 64 °F at the nearest NOAA normals station — density altitude at Murray Field reaches roughly 359 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 KEKA on an average day?
It swings with the seasons: from roughly −743 ft at the coldest month's average temperature to about −1 ft at the warmest month's — all from a constant field elevation of 11 ft. The month-by-month table above carries the full year.
What is the field elevation of Murray Field?
11 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KEKA (ICAO) / EKA (FAA), in Eureka, California.