Sleepy Eye, Minnesota · field elev 1,006 ft
Density Altitude at Sleepy Eye Municipal (Y58)
Sleepy Eye Municipal sits at 1,006 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,734 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 | 15.3 | −1,752 ft | 23.5 | −1,162 ft |
| February | 19.9 | −1,419 ft | 28.6 | −800 ft |
| March | 32.6 | −520 ft | 41.4 | 86 ft |
| April | 46.6 | 438 ft | 57.1 | 1,135 ft |
| May | 58.9 | 1,253 ft | 69.3 | 1,924 ft |
| June | 68.8 | 1,892 ft | 78.8 | 2,523 ft |
| July | 72.3 | 2,115 ft | 82.2 | 2,734 ft |
| August | 69.7 | 1,949 ft | 79.8 | 2,585 ft |
| September | 62.7 | 1,500 ft | 73.4 | 2,184 ft |
| October | 49.3 | 619 ft | 59.6 | 1,299 ft |
| November | 34.2 | −409 ft | 42.7 | 174 ft |
| December | 20.9 | −1,347 ft | 28.5 | −807 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 Y58
DENSITY ALTITUDE
Field elevation 1,006 ft — the air behaves like 2,722 ft.
- PRESSURE ALT
- 1,007 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
- KULM — New Ulm Municipal
New Ulm · elev 1,011 ft
- D42 — Springfield Municipal
Springfield · elev 1,073 ft
- KJYG — St James Municipal
St James · elev 1,068 ft
- KRWF — Redwood Falls Municipal
Redwood Falls · elev 1,024 ft
- KMWM — Windom Municipal
Windom · elev 1,411 ft
- 1D6 — Hector Municipal
Hector · elev 1,078 ft
- KMKT — Mankato Regional
Mankato · elev 1,021 ft
- KOVL — Olivia Regional
Olivia · elev 1,080 ft
Frequently asked questions
How high does density altitude get at Y58 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Sleepy Eye Municipal reaches roughly 2,734 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 Y58 on an average day?
It swings with the seasons: from roughly −1,752 ft at the coldest month's average temperature to about 2,115 ft at the warmest month's — all from a constant field elevation of 1,006 ft. The month-by-month table above carries the full year.
What is the field elevation of Sleepy Eye Municipal?
1,006 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is Y58 (FAA), in Sleepy Eye, Minnesota.