Trinity Center, California · field elev 2,390 ft
Density Altitude at Trinity Center (O86)
From a field elevation of 2,390 ft, a typical July afternoon at Trinity Center (96 °F) raises density altitude to about 5,246 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 | 37.4 | 1,534 ft | 44.6 | 2,019 ft |
| February | 41.2 | 1,791 ft | 51.4 | 2,469 ft |
| March | 46.0 | 2,112 ft | 58.6 | 2,938 ft |
| April | 50.7 | 2,423 ft | 65.5 | 3,380 ft |
| May | 58.7 | 2,945 ft | 75.4 | 4,002 ft |
| June | 65.5 | 3,380 ft | 84.7 | 4,573 ft |
| July | 74.1 | 3,921 ft | 95.9 | 5,246 ft ▲ |
| August | 72.1 | 3,796 ft | 93.9 | 5,127 ft ▲ |
| September | 67.2 | 3,488 ft | 89.3 | 4,852 ft |
| October | 53.5 | 2,607 ft | 69.7 | 3,646 ft |
| November | 43.4 | 1,939 ft | 53.7 | 2,620 ft |
| December | 36.5 | 1,472 ft | 42.5 | 1,878 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 O86
DENSITY ALTITUDE caution
Field elevation 2,390 ft — the air behaves like 5,252 ft.
- PRESSURE ALT
- 2,391 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
- O54 — Lonnie Pool Field/Weaverville
Weaverville · elev 2,350 ft
- 1O6 — Dunsmuir Municipal-Mott
Dunsmuir · elev 3,261 ft
- O85 — Benton Field
Redding · elev 723 ft
- O46 — Weed
Weed · elev 2,943 ft
- KRDD — Redding Regional
Redding · elev 505 ft
- F62 — Hayfork
Hayfork · elev 2,334 ft
- A30 — Scott Valley
Fort Jones · elev 2,728 ft
- H47 — Hyampom
Hyampom · elev 1,277 ft
Frequently asked questions
How high does density altitude get at O86 in summer?
On a typical July afternoon — around 96 °F at the nearest NOAA normals station — density altitude at Trinity Center reaches roughly 5,246 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 O86 on an average day?
It swings with the seasons: from roughly 1,472 ft at the coldest month's average temperature to about 3,921 ft at the warmest month's — all from a constant field elevation of 2,390 ft. The month-by-month table above carries the full year.
What is the field elevation of Trinity Center?
2,390 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is O86 (FAA), in Trinity Center, California.