Medford, Oregon · field elev 1,335 ft
Density Altitude at Rogue Valley International/Medford (KMFR)
Rogue Valley International/Medford sits at 1,335 ft, and even a typical July afternoon (92 °F) only lifts density altitude to about 3,709 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 | 40.4 | 427 ft | 48.2 | 953 ft |
| February | 44.1 | 677 ft | 54.2 | 1,351 ft |
| March | 48.3 | 959 ft | 59.4 | 1,691 ft |
| April | 52.8 | 1,258 ft | 64.6 | 2,027 ft |
| May | 60.4 | 1,756 ft | 73.9 | 2,618 ft |
| June | 66.9 | 2,175 ft | 81.5 | 3,092 ft |
| July | 75.1 | 2,694 ft | 91.6 | 3,709 ft |
| August | 74.5 | 2,656 ft | 91.1 | 3,679 ft |
| September | 67.7 | 2,226 ft | 84.3 | 3,265 ft |
| October | 56.1 | 1,476 ft | 70.1 | 2,378 ft |
| November | 45.2 | 752 ft | 54.0 | 1,338 ft |
| December | 39.4 | 358 ft | 46.1 | 812 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 KMFR
DENSITY ALTITUDE
Field elevation 1,335 ft — the air behaves like 3,733 ft.
- PRESSURE ALT
- 1,336 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 Oregon fields
- S03 — Ashland Municipal/Sumner Parker Field
Ashland · elev 1,889 ft
- 3S8 — Grants Pass
Grants Pass · elev 1,130 ft
- 24S — Pinehurst State
Pinehurst · elev 3,643 ft
- 64S — Prospect State
Prospect · elev 2,578 ft
- 3S4 — Illinois Valley
Cave Junction · elev 1,394 ft
- 16S — Myrtle Creek Municipal
Myrtle Creek · elev 619 ft
- 2S7 — Chiloquin State
Chiloquin · elev 4,221 ft
- KLMT — Crater Lake/Klamath Regional
Klamath Falls · elev 4,095 ft
Frequently asked questions
How high does density altitude get at KMFR in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Rogue Valley International/Medford reaches roughly 3,709 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 KMFR on an average day?
It swings with the seasons: from roughly 358 ft at the coldest month's average temperature to about 2,694 ft at the warmest month's — all from a constant field elevation of 1,335 ft. The month-by-month table above carries the full year.
What is the field elevation of Rogue Valley International/Medford?
1,335 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMFR (ICAO) / MFR (FAA), in Medford, Oregon.