Caledonia, Minnesota · field elev 1,179 ft
Density Altitude at Houston County (KCHU)
Houston County sits at 1,179 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 2,883 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 | 16.1 | −1,476 ft | 24.4 | −881 ft |
| February | 20.1 | −1,188 ft | 29.0 | −556 ft |
| March | 32.1 | −339 ft | 41.3 | 294 ft |
| April | 45.3 | 565 ft | 55.7 | 1,257 ft |
| May | 57.6 | 1,381 ft | 67.8 | 2,041 ft |
| June | 67.7 | 2,034 ft | 77.3 | 2,641 ft |
| July | 71.4 | 2,270 ft | 81.2 | 2,883 ft |
| August | 69.2 | 2,130 ft | 79.1 | 2,753 ft |
| September | 61.4 | 1,629 ft | 72.1 | 2,314 ft |
| October | 48.7 | 793 ft | 58.7 | 1,453 ft |
| November | 34.5 | −173 ft | 42.7 | 389 ft |
| December | 22.3 | −1,030 ft | 29.8 | −500 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 KCHU
DENSITY ALTITUDE
Field elevation 1,179 ft — the air behaves like 2,871 ft.
- PRESSURE ALT
- 1,180 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
- 55Y — Rushford Municipal/Robert W Bunke Field
Rushford · elev 1,211 ft
- KFKA — Fillmore County
Preston · elev 1,277 ft
- KONA — Winona Municipal/Max Conrad Field
Winona · elev 656 ft
- KRST — Rochester International
Rochester · elev 1,317 ft
- KAUM — Austin Municipal
Austin · elev 1,234 ft
- KTOB — Dodge Center
Dodge Center · elev 1,304 ft
- KRGK — Red Wing Regional
Red Wing · elev 778 ft
- KAEL — Albert Lea Municipal
Albert Lea · elev 1,261 ft
Frequently asked questions
How high does density altitude get at KCHU in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Houston County reaches roughly 2,883 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 KCHU on an average day?
It swings with the seasons: from roughly −1,476 ft at the coldest month's average temperature to about 2,270 ft at the warmest month's — all from a constant field elevation of 1,179 ft. The month-by-month table above carries the full year.
What is the field elevation of Houston County?
1,179 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCHU (ICAO) / CHU (FAA), in Caledonia, Minnesota.