Elwell, Michigan · field elev 825 ft
Density Altitude at Hamp (68R)
Hamp sits at 825 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,513 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 | 22.0 | −1,496 ft | 29.1 | −992 ft |
| February | 23.7 | −1,374 ft | 32.0 | −788 ft |
| March | 33.0 | −718 ft | 42.6 | −57 ft |
| April | 45.2 | 119 ft | 55.9 | 833 ft |
| May | 57.0 | 905 ft | 68.5 | 1,651 ft |
| June | 66.9 | 1,548 ft | 78.1 | 2,258 ft |
| July | 70.8 | 1,797 ft | 82.2 | 2,513 ft |
| August | 69.0 | 1,683 ft | 80.1 | 2,383 ft |
| September | 61.3 | 1,186 ft | 72.9 | 1,931 ft |
| October | 49.7 | 421 ft | 60.0 | 1,102 ft |
| November | 37.7 | −393 ft | 45.8 | 159 ft |
| December | 28.2 | −1,055 ft | 34.5 | −614 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 68R
DENSITY ALTITUDE
Field elevation 825 ft — the air behaves like 2,501 ft.
- PRESSURE ALT
- 826 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 Michigan fields
- KAMN — Gratiot Community
Alma · elev 754 ft
- 53W — Woodruff Lake
Winn · elev 938 ft
- KMOP — Mount Pleasant Municipal
Mount Pleasant · elev 755 ft
- D15 — Lake Isabella/Cal Brewer Meml
Lake Isabella · elev 886 ft
- 13C — Lakeview/Griffith Field
Lakeview · elev 969 ft
- MI1 — Denton Farms
Clare · elev 851 ft
- D11 — Ojibwa Airpark
Weidman · elev 959 ft
- M99 — Shady Lane
St Johns · elev 680 ft
Frequently asked questions
How high does density altitude get at 68R in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Hamp reaches roughly 2,513 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 68R on an average day?
It swings with the seasons: from roughly −1,496 ft at the coldest month's average temperature to about 1,797 ft at the warmest month's — all from a constant field elevation of 825 ft. The month-by-month table above carries the full year.
What is the field elevation of Hamp?
825 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 68R (FAA), in Elwell, Michigan.