Chester, California · field elev 4,534 ft
Density Altitude at Rogers Field (O05)
From a field elevation of 4,534 ft, a typical July afternoon at Rogers Field (86 °F) raises density altitude to about 7,260 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 | 32.0 | 3,830 ft | 42.2 | 4,511 ft |
| February | 34.3 | 3,985 ft | 45.6 | 4,735 ft |
| March | 38.4 | 4,260 ft | 50.5 | 5,053 ft ▲ |
| April | 43.7 | 4,610 ft | 57.1 | 5,476 ft ▲ |
| May | 51.8 | 5,137 ft | 66.8 | 6,087 ft ▲ |
| June | 59.6 | 5,635 ft | 76.6 | 6,689 ft ▲ |
| July | 67.1 | 6,105 ft | 86.1 | 7,260 ft ▲ |
| August | 65.6 | 6,012 ft | 85.0 | 7,194 ft ▲ |
| September | 59.8 | 5,648 ft | 78.9 | 6,828 ft ▲ |
| October | 49.5 | 4,989 ft | 65.9 | 6,030 ft ▲ |
| November | 38.5 | 4,266 ft | 50.6 | 5,060 ft ▲ |
| December | 31.6 | 3,803 ft | 41.2 | 4,445 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 O05
DENSITY ALTITUDE caution
Field elevation 4,534 ft — the air behaves like 7,254 ft.
- PRESSURE ALT
- 4,536 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
- 2O1 — Gansner Field
Quincy · elev 3,419 ft
- 1Q2 — Spaulding
Susanville · elev 5,116 ft
- KSVE — Susanville Municipal
Susanville · elev 4,149 ft
- KCIC — Chico Regional
Chico · elev 240 ft
- O89 — Fall River Mills
Fall River Mills · elev 3,328 ft
- KRBL — Red Bluff Municipal
Red Bluff · elev 352 ft
- 0O4 — Corning Municipal
Corning · elev 295 ft
- O02 — Nervino
Beckwourth · elev 4,900 ft
Frequently asked questions
How high does density altitude get at O05 in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Rogers Field reaches roughly 7,260 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 O05 on an average day?
It swings with the seasons: from roughly 3,803 ft at the coldest month's average temperature to about 6,105 ft at the warmest month's — all from a constant field elevation of 4,534 ft. The month-by-month table above carries the full year.
What is the field elevation of Rogers Field?
4,534 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is O05 (FAA), in Chester, California.