Healdsburg, California · field elev 280 ft
Density Altitude at Healdsburg Municipal (KHES)
Healdsburg Municipal sits at 280 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 2,249 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 | 48.5 | −335 ft | 57.7 | 278 ft |
| February | 51.3 | −147 ft | 61.5 | 528 ft |
| March | 54.4 | 60 ft | 66.0 | 820 ft |
| April | 58.6 | 338 ft | 72.1 | 1,211 ft |
| May | 64.3 | 710 ft | 79.0 | 1,647 ft |
| June | 69.7 | 1,058 ft | 85.8 | 2,071 ft |
| July | 71.5 | 1,173 ft | 88.7 | 2,249 ft |
| August | 71.0 | 1,141 ft | 88.3 | 2,224 ft |
| September | 68.5 | 981 ft | 84.6 | 1,996 ft |
| October | 62.7 | 606 ft | 76.9 | 1,515 ft |
| November | 53.8 | 20 ft | 64.9 | 749 ft |
| December | 48.0 | −368 ft | 57.3 | 252 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 KHES
DENSITY ALTITUDE
Field elevation 280 ft — the air behaves like 2,267 ft.
- PRESSURE ALT
- 281 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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- 1O2 — Lampson Field
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- 2O3 — Angwin-Parrett Field
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- O69 — Petaluma Municipal
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- E55 — Ocean Ridge
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- D83 — Boonville
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- KUKI — Ukiah Municipal
Ukiah · elev 617 ft
Frequently asked questions
How high does density altitude get at KHES in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Healdsburg Municipal reaches roughly 2,249 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 KHES on an average day?
It swings with the seasons: from roughly −368 ft at the coldest month's average temperature to about 1,173 ft at the warmest month's — all from a constant field elevation of 280 ft. The month-by-month table above carries the full year.
What is the field elevation of Healdsburg Municipal?
280 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHES (ICAO) / HES (FAA), in Healdsburg, California.