Somerset, Pennsylvania · field elev 2,275 ft
Density Altitude at Somerset County (2G9)
Somerset County sits at 2,275 ft, and even a typical July afternoon (79 °F) only lifts density altitude to about 4,060 ft — heat still trims performance, but the field rarely turns high-and-hot.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 26.3 | 625 ft | 33.4 | 1,117 ft |
| February | 28.7 | 792 ft | 36.3 | 1,316 ft |
| March | 36.4 | 1,322 ft | 44.7 | 1,883 ft |
| April | 48.1 | 2,109 ft | 57.9 | 2,752 ft |
| May | 58.5 | 2,790 ft | 68.2 | 3,410 ft |
| June | 66.0 | 3,271 ft | 74.9 | 3,831 ft |
| July | 69.9 | 3,518 ft | 78.6 | 4,060 ft |
| August | 68.6 | 3,436 ft | 77.1 | 3,967 ft |
| September | 61.6 | 2,990 ft | 70.5 | 3,555 ft |
| October | 51.1 | 2,308 ft | 59.4 | 2,848 ft |
| November | 40.1 | 1,574 ft | 47.4 | 2,063 ft |
| December | 31.2 | 965 ft | 37.8 | 1,418 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 2G9
DENSITY ALTITUDE
Field elevation 2,275 ft — the air behaves like 4,084 ft.
- PRESSURE ALT
- 2,276 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 Pennsylvania fields
- KJST — John Murtha Johnstown/Cambria County
Johnstown · elev 2,284 ft
- KLBE — Arnold Palmer Regional
Latrobe · elev 1,199 ft
- KHMZ — Bedford County
Bedford · elev 1,162 ft
- P45 — Mount Pleasant/Scottdale
Mount Pleasant · elev 1,160 ft
- 9G8 — Ebensburg
Ebensburg · elev 2,099 ft
- KVVS — Joseph A Hardy Connellsville
Connellsville · elev 1,264 ft
- 5G8 — Greensburg Jeannette Regional
Jeannette · elev 1,188 ft
- P17 — Greater Breezewood Regional
Breezewood · elev 1,345 ft
Frequently asked questions
How high does density altitude get at 2G9 in summer?
On a typical July afternoon — around 79 °F at the nearest NOAA normals station — density altitude at Somerset County reaches roughly 4,060 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 2G9 on an average day?
It swings with the seasons: from roughly 625 ft at the coldest month's average temperature to about 3,518 ft at the warmest month's — all from a constant field elevation of 2,275 ft. The month-by-month table above carries the full year.
What is the field elevation of Somerset County?
2,275 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2G9 (FAA), in Somerset, Pennsylvania.