Rochester, Minnesota · field elev 1,317 ft
Density Altitude at Rochester International (KRST)
Rochester International sits at 1,317 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 2,996 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 | 14.7 | −1,404 ft | 22.5 | −843 ft |
| February | 18.7 | −1,115 ft | 26.7 | −545 ft |
| March | 31.7 | −195 ft | 39.9 | 370 ft |
| April | 45.2 | 729 ft | 55.3 | 1,401 ft |
| May | 57.6 | 1,552 ft | 68.0 | 2,223 ft |
| June | 67.5 | 2,191 ft | 77.6 | 2,828 ft |
| July | 70.5 | 2,382 ft | 80.3 | 2,996 ft |
| August | 68.2 | 2,236 ft | 78.0 | 2,853 ft |
| September | 61.1 | 1,779 ft | 71.8 | 2,464 ft |
| October | 47.9 | 910 ft | 57.9 | 1,571 ft |
| November | 33.6 | −63 ft | 41.7 | 493 ft |
| December | 20.8 | −964 ft | 28.0 | −454 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 KRST
DENSITY ALTITUDE
Field elevation 1,317 ft — the air behaves like 2,977 ft.
- PRESSURE ALT
- 1,318 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 Minnesota fields
- KTOB — Dodge Center
Dodge Center · elev 1,304 ft
- KFKA — Fillmore County
Preston · elev 1,277 ft
- KAUM — Austin Municipal
Austin · elev 1,234 ft
- 55Y — Rushford Municipal/Robert W Bunke Field
Rushford · elev 1,211 ft
- KOWA — Owatonna Degner Regional
Owatonna · elev 1,145 ft
- KONA — Winona Municipal/Max Conrad Field
Winona · elev 656 ft
- KAEL — Albert Lea Municipal
Albert Lea · elev 1,261 ft
- KSYN — Stanton Airfield
Stanton · elev 920 ft
Frequently asked questions
How high does density altitude get at KRST in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Rochester International reaches roughly 2,996 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 KRST on an average day?
It swings with the seasons: from roughly −1,404 ft at the coldest month's average temperature to about 2,382 ft at the warmest month's — all from a constant field elevation of 1,317 ft. The month-by-month table above carries the full year.
What is the field elevation of Rochester International?
1,317 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KRST (ICAO) / RST (FAA), in Rochester, Minnesota.