Hayward, Wisconsin · field elev 1,216 ft
Density Altitude at Sawyer County (KHYR)
Sawyer County sits at 1,216 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 2,829 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 | 12.2 | −1,714 ft | 22.1 | −998 ft |
| February | 15.8 | −1,451 ft | 27.1 | −643 ft |
| March | 28.5 | −545 ft | 39.7 | 231 ft |
| April | 41.2 | 333 ft | 53.1 | 1,131 ft |
| May | 53.8 | 1,177 ft | 66.9 | 2,029 ft |
| June | 63.1 | 1,784 ft | 75.5 | 2,573 ft |
| July | 67.1 | 2,041 ft | 79.6 | 2,829 ft |
| August | 65.0 | 1,907 ft | 77.5 | 2,698 ft |
| September | 57.0 | 1,388 ft | 69.1 | 2,169 ft |
| October | 44.7 | 570 ft | 55.1 | 1,263 ft |
| November | 31.1 | −363 ft | 39.3 | 204 ft |
| December | 18.4 | −1,263 ft | 26.8 | −664 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 KHYR
DENSITY ALTITUDE
Field elevation 1,216 ft — the air behaves like 2,854 ft.
- PRESSURE ALT
- 1,217 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- AIR DENSITY
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- WATER · GRAINS/LB
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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 Wisconsin fields
- 3CU — Cable Union
Cable · elev 1,360 ft
- 1H9 — Nest Of Eagles
Spooner · elev 1,115 ft
- 5G4 — Eau Claire Lakes
Drummond · elev 1,212 ft
- KOLG — Solon Springs Municipal
Solon Springs · elev 1,102 ft
- KSSQ — Shell Lake Municipal
Shell Lake · elev 1,233 ft
- Y77 — Bayfield County
Iron River · elev 1,134 ft
- KRCX — Rusk County
Ladysmith · elev 1,240 ft
- KASX — John F Kennedy Meml
Ashland · elev 827 ft
Frequently asked questions
How high does density altitude get at KHYR in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Sawyer County reaches roughly 2,829 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 KHYR on an average day?
It swings with the seasons: from roughly −1,714 ft at the coldest month's average temperature to about 2,041 ft at the warmest month's — all from a constant field elevation of 1,216 ft. The month-by-month table above carries the full year.
What is the field elevation of Sawyer County?
1,216 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHYR (ICAO) / HYR (FAA), in Hayward, Wisconsin.