Casper, Wyoming · field elev 5,370 ft
Density Altitude at Irwins Sky Ranch (KHAD)
Irwins Sky Ranch is a genuine high-and-hot field: from 5,370 ft of elevation, a typical July afternoon (89 °F) pushes density altitude to about 8,442 ft — the airplane performs like it is 3,072 ft above the field before the wheels roll.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 25.1 | 4,400 ft | 35.2 | 5,081 ft ▲ |
| February | 26.6 | 4,502 ft | 37.8 | 5,254 ft ▲ |
| March | 35.8 | 5,121 ft | 48.8 | 5,972 ft ▲ |
| April | 42.3 | 5,550 ft | 56.3 | 6,451 ft ▲ |
| May | 52.0 | 6,177 ft | 66.8 | 7,107 ft ▲ |
| June | 62.5 | 6,840 ft | 79.6 | 7,885 ft ▲ |
| July | 71.0 | 7,365 ft | 89.0 | 8,442 ft ⚠ |
| August | 69.0 | 7,242 ft | 86.7 | 8,307 ft ⚠ |
| September | 58.9 | 6,615 ft | 75.6 | 7,645 ft ▲ |
| October | 45.3 | 5,746 ft | 59.7 | 6,665 ft ▲ |
| November | 34.0 | 5,001 ft | 45.9 | 5,785 ft ▲ |
| December | 24.8 | 4,379 ft | 34.7 | 5,048 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 KHAD
DENSITY ALTITUDE high DA
Field elevation 5,370 ft — the air behaves like 8,442 ft.
- PRESSURE ALT
- 5,372 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 Wyoming fields
- KCPR — Casper/Natrona County International
Casper · elev 5,344 ft
- KDGW — Converse County
Douglas · elev 4,933 ft
- 76V — Thomas Meml
Glendo · elev 4,666 ft
- 80V — Medicine Bow
Medicine Bow · elev 6,658 ft
- KRWL — Rawlins Municipal/Harvey Field
Rawlins · elev 6,817 ft
- KEAN — Phifer Airfield
Wheatland · elev 4,779 ft
- KGUR — Camp Guernsey
Guernsey · elev 4,402 ft
- 49U — Shoshoni Municipal
Shoshoni · elev 4,818 ft
Frequently asked questions
How high does density altitude get at KHAD in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Irwins Sky Ranch reaches roughly 8,442 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 KHAD on an average day?
It swings with the seasons: from roughly 4,379 ft at the coldest month's average temperature to about 7,365 ft at the warmest month's — all from a constant field elevation of 5,370 ft. The month-by-month table above carries the full year.
What is the field elevation of Irwins Sky Ranch?
5,370 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHAD (ICAO) / HAD (FAA), in Casper, Wyoming.