Fort Jones, California · field elev 2,728 ft
Density Altitude at Scott Valley (A30)
From a field elevation of 2,728 ft, a typical July afternoon at Scott Valley (93 °F) raises density altitude to about 5,483 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 | 36.7 | 1,906 ft | 46.1 | 2,537 ft |
| February | 40.4 | 2,156 ft | 51.7 | 2,906 ft |
| March | 45.2 | 2,477 ft | 58.1 | 3,322 ft |
| April | 50.4 | 2,821 ft | 64.3 | 3,719 ft |
| May | 58.6 | 3,354 ft | 73.9 | 4,322 ft |
| June | 65.8 | 3,814 ft | 82.9 | 4,875 ft |
| July | 74.2 | 4,340 ft | 93.0 | 5,483 ft ▲ |
| August | 73.0 | 4,266 ft | 92.2 | 5,435 ft ▲ |
| September | 65.7 | 3,807 ft | 84.4 | 4,966 ft |
| October | 53.7 | 3,037 ft | 69.7 | 4,060 ft |
| November | 42.5 | 2,297 ft | 53.9 | 3,050 ft |
| December | 36.0 | 1,858 ft | 44.9 | 2,457 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 A30
DENSITY ALTITUDE caution
Field elevation 2,728 ft — the air behaves like 5,483 ft.
- PRESSURE ALT
- 2,730 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
- 1O5 — Montague-Yreka Rohrer Field
Montague · elev 2,527 ft
- O46 — Weed
Weed · elev 2,943 ft
- KSIY — Siskiyou County
Montague · elev 2,651 ft
- 36S — Happy Camp
Happy Camp · elev 1,209 ft
- 1O6 — Dunsmuir Municipal-Mott
Dunsmuir · elev 3,261 ft
- O86 — Trinity Center
Trinity Center · elev 2,390 ft
- A32 — Butte Valley
Dorris · elev 4,243 ft
- O21 — Hoopa
Hoopa · elev 356 ft
Frequently asked questions
How high does density altitude get at A30 in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Scott Valley reaches roughly 5,483 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 A30 on an average day?
It swings with the seasons: from roughly 1,858 ft at the coldest month's average temperature to about 4,340 ft at the warmest month's — all from a constant field elevation of 2,728 ft. The month-by-month table above carries the full year.
What is the field elevation of Scott Valley?
2,728 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is A30 (FAA), in Fort Jones, California.