Homedale, Idaho · field elev 2,220 ft
Density Altitude at Homedale Municipal (S66)
Homedale Municipal sits at 2,220 ft, and even a typical July afternoon (92 °F) only lifts density altitude to about 4,825 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 | 30.4 | 841 ft | 37.9 | 1,356 ft |
| February | 36.3 | 1,247 ft | 45.7 | 1,882 ft |
| March | 44.3 | 1,788 ft | 56.5 | 2,593 ft |
| April | 50.6 | 2,207 ft | 63.7 | 3,057 ft |
| May | 59.9 | 2,813 ft | 73.0 | 3,645 ft |
| June | 67.0 | 3,267 ft | 81.4 | 4,165 ft |
| July | 75.7 | 3,813 ft | 92.3 | 4,825 ft |
| August | 73.2 | 3,657 ft | 91.1 | 4,753 ft |
| September | 63.3 | 3,031 ft | 80.5 | 4,110 ft |
| October | 50.7 | 2,213 ft | 65.7 | 3,184 ft |
| November | 39.0 | 1,431 ft | 49.5 | 2,134 ft |
| December | 30.9 | 876 ft | 38.7 | 1,411 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 S66
DENSITY ALTITUDE
Field elevation 2,220 ft — the air behaves like 4,807 ft.
- PRESSURE ALT
- 2,221 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 Idaho fields
- 50S — Parma
Parma · elev 2,228 ft
- KEUL — Caldwell Exec
Caldwell · elev 2,431 ft
- KMAN — Nampa Municipal
Nampa · elev 2,537 ft
- S78 — Emmett Municipal
Emmett · elev 2,354 ft
- S75 — Payette Municipal
Payette · elev 2,230 ft
- 1U3 — Murphy
Murphy · elev 2,855 ft
- KBOI — Boise Air Trml/Gowen Field
Boise · elev 2,872 ft
- S87 — Weiser Municipal
Weiser · elev 2,120 ft
Frequently asked questions
How high does density altitude get at S66 in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Homedale Municipal reaches roughly 4,825 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 S66 on an average day?
It swings with the seasons: from roughly 841 ft at the coldest month's average temperature to about 3,813 ft at the warmest month's — all from a constant field elevation of 2,220 ft. The month-by-month table above carries the full year.
What is the field elevation of Homedale Municipal?
2,220 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is S66 (FAA), in Homedale, Idaho.