Dayton, Ohio · field elev 1,028 ft
Density Altitude at Dayton/Phillipsburg (3I7)
Dayton/Phillipsburg sits at 1,028 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 2,989 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 | 29.4 | −717 ft | 37.1 | −181 ft |
| February | 32.8 | −479 ft | 41.2 | 99 ft |
| March | 42.1 | 161 ft | 51.5 | 793 ft |
| April | 53.7 | 939 ft | 64.5 | 1,643 ft |
| May | 64.0 | 1,611 ft | 74.2 | 2,261 ft |
| June | 72.7 | 2,167 ft | 82.6 | 2,785 ft |
| July | 76.0 | 2,375 ft | 85.9 | 2,989 ft |
| August | 74.5 | 2,280 ft | 84.6 | 2,909 ft |
| September | 67.7 | 1,849 ft | 78.6 | 2,537 ft |
| October | 56.0 | 1,090 ft | 66.2 | 1,753 ft |
| November | 44.1 | 296 ft | 52.7 | 872 ft |
| December | 34.3 | −375 ft | 41.5 | 120 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 3I7
DENSITY ALTITUDE
Field elevation 1,028 ft — the air behaves like 2,995 ft.
- PRESSURE ALT
- 1,029 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 Ohio fields
- KDAY — James M Cox Dayton International
Dayton · elev 1,009 ft
- I44 — Dahio Trotwood
Dayton · elev 925 ft
- 1WF — Waco Field
Troy · elev 817 ft
- I17 — Piqua/Hartzell Field
Piqua · elev 993 ft
- I73 — Moraine Air Park
Dayton · elev 720 ft
- KVES — Darke County
Versailles · elev 1,007 ft
- KMGY — Dayton/Wright Brothers
Dayton · elev 957 ft
- KSCA — Sidney Municipal
Sidney · elev 1,044 ft
Frequently asked questions
How high does density altitude get at 3I7 in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Dayton/Phillipsburg reaches roughly 2,989 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 3I7 on an average day?
It swings with the seasons: from roughly −717 ft at the coldest month's average temperature to about 2,375 ft at the warmest month's — all from a constant field elevation of 1,028 ft. The month-by-month table above carries the full year.
What is the field elevation of Dayton/Phillipsburg?
1,028 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 3I7 (FAA), in Dayton, Ohio.