Roscommon, Michigan · field elev 1,157 ft
Density Altitude at Roscommon Conservation (3RC)
Roscommon Conservation sits at 1,157 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 2,813 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 | 19.1 | −1,287 ft | 26.9 | −731 ft |
| February | 20.3 | −1,201 ft | 29.6 | −541 ft |
| March | 29.7 | −534 ft | 40.4 | 205 ft |
| April | 42.2 | 328 ft | 53.8 | 1,105 ft |
| May | 54.7 | 1,164 ft | 67.2 | 1,975 ft |
| June | 63.9 | 1,763 ft | 76.7 | 2,576 ft |
| July | 67.8 | 2,014 ft | 80.5 | 2,813 ft |
| August | 65.8 | 1,886 ft | 78.3 | 2,676 ft |
| September | 58.3 | 1,400 ft | 70.6 | 2,192 ft |
| October | 46.8 | 638 ft | 56.8 | 1,302 ft |
| November | 35.5 | −131 ft | 43.1 | 389 ft |
| December | 25.6 | −823 ft | 32.1 | −367 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 3RC
DENSITY ALTITUDE
Field elevation 1,157 ft — the air behaves like 2,844 ft.
- PRESSURE ALT
- 1,158 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
- KHTL — Roscommon County/Blodgett Meml
Houghton Lake · elev 1,150 ft
- 6Y6 — St Helen
St Helen · elev 1,198 ft
- 5Y2 — Houghton Lake State
Houghton Lake Heights · elev 1,165 ft
- KGOV — Grayling Aaf
Grayling · elev 1,158 ft
- 6Y0 — Moorestown Airpark
Moorestown · elev 1,211 ft
- 5M6 — Sugar Springs Airpark
Gladwin · elev 953 ft
- Y31 — West Branch Community
West Branch · elev 882 ft
- 51M — Oscoda County/Dennis Kauffman Meml
Mio · elev 1,033 ft
Frequently asked questions
How high does density altitude get at 3RC in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Roscommon Conservation reaches roughly 2,813 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 3RC on an average day?
It swings with the seasons: from roughly −1,287 ft at the coldest month's average temperature to about 2,014 ft at the warmest month's — all from a constant field elevation of 1,157 ft. The month-by-month table above carries the full year.
What is the field elevation of Roscommon Conservation?
1,157 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 3RC (FAA), in Roscommon, Michigan.