Newport News, Virginia · field elev 42 ft
Density Altitude at Newport News/Williamsburg International (KPHF)
Newport News/Williamsburg International sits at 42 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 1,928 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 | 39.8 | −1,224 ft | 49.0 | −596 ft |
| February | 42.2 | −1,059 ft | 52.5 | −361 ft |
| March | 48.5 | −630 ft | 59.1 | 77 ft |
| April | 58.4 | 31 ft | 69.6 | 759 ft |
| May | 66.7 | 572 ft | 77.2 | 1,243 ft |
| June | 74.6 | 1,078 ft | 84.7 | 1,712 ft |
| July | 79.2 | 1,369 ft | 88.2 | 1,928 ft |
| August | 77.3 | 1,249 ft | 86.6 | 1,830 ft |
| September | 71.7 | 894 ft | 80.9 | 1,475 ft |
| October | 61.4 | 228 ft | 71.3 | 868 ft |
| November | 50.7 | −482 ft | 61.2 | 215 ft |
| December | 43.4 | −976 ft | 53.3 | −308 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 KPHF
DENSITY ALTITUDE
Field elevation 42 ft — the air behaves like 1,916 ft.
- PRESSURE ALT
- 43 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 Virginia fields
- KJGG — Waltrip Williamsburg Exec Airport
Williamsburg · elev 49 ft
- KORF — Norfolk International
Norfolk · elev 26 ft
- KPVG — Hampton Roads Exec
Norfolk · elev 28 ft
- KAKQ — Wakefield Municipal
Wakefield · elev 111 ft
- KFYJ — Middle Peninsula Regional
West Point · elev 20 ft
- KSFQ — Suffolk Exec
Suffolk · elev 70 ft
- W75 — Hummel Field
Saluda · elev 30 ft
- KCPK — Chesapeake Regional
Norfolk · elev 19 ft
Frequently asked questions
How high does density altitude get at KPHF in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Newport News/Williamsburg International reaches roughly 1,928 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 KPHF on an average day?
It swings with the seasons: from roughly −1,224 ft at the coldest month's average temperature to about 1,369 ft at the warmest month's — all from a constant field elevation of 42 ft. The month-by-month table above carries the full year.
What is the field elevation of Newport News/Williamsburg International?
42 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KPHF (ICAO) / PHF (FAA), in Newport News, Virginia.