Smith, Nevada · field elev 4,809 ft
Density Altitude at Rosaschi Air Park (N59)
From a field elevation of 4,809 ft, a typical July afternoon at Rosaschi Air Park (93 °F) raises density altitude to about 7,987 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 | 32.3 | 4,192 ft | 45.8 | 5,087 ft ▲ |
| February | 36.8 | 4,493 ft | 50.7 | 5,405 ft ▲ |
| March | 43.4 | 4,930 ft | 58.6 | 5,909 ft ▲ |
| April | 48.5 | 5,262 ft | 64.4 | 6,273 ft ▲ |
| May | 56.8 | 5,795 ft | 73.6 | 6,841 ft ▲ |
| June | 65.5 | 6,342 ft | 83.9 | 7,462 ft ▲ |
| July | 73.3 | 6,822 ft | 92.8 | 7,987 ft ▲ |
| August | 71.4 | 6,706 ft | 91.1 | 7,888 ft ▲ |
| September | 63.0 | 6,186 ft | 82.4 | 7,373 ft ▲ |
| October | 51.1 | 5,430 ft | 69.2 | 6,571 ft ▲ |
| November | 39.4 | 4,666 ft | 55.2 | 5,693 ft ▲ |
| December | 31.5 | 4,138 ft | 44.8 | 5,022 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 N59
DENSITY ALTITUDE caution
Field elevation 4,809 ft — the air behaves like 7,999 ft.
- PRESSURE ALT
- 4,811 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 Nevada fields
- O43 — Yerington Municipal
Yerington · elev 4,382 ft
- 3A5 — Flying M Ranch
Yerington · elev 4,922 ft
- KMEV — Minden-Tahoe
Minden · elev 4,724 ft
- A34 — Dayton Valley Airpark
Dayton/Carson City · elev 4,414 ft
- KCXP — Carson City
Carson City · elev 4,704 ft
- N49 — Rose Quartz Ranch
Stagecoach · elev 4,690 ft
- KSPZ — Silver Springs
Silver Springs · elev 4,265 ft
- KHTH — Hawthorne Industrial
Hawthorne · elev 4,230 ft
Frequently asked questions
How high does density altitude get at N59 in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Rosaschi Air Park reaches roughly 7,987 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 N59 on an average day?
It swings with the seasons: from roughly 4,138 ft at the coldest month's average temperature to about 6,822 ft at the warmest month's — all from a constant field elevation of 4,809 ft. The month-by-month table above carries the full year.
What is the field elevation of Rosaschi Air Park?
4,809 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is N59 (FAA), in Smith, Nevada.