Leipsic, Ohio · field elev 801 ft
Density Altitude at Ruhes (R47)
Ruhes sits at 801 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,601 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 | 26.4 | −1,212 ft | 33.4 | −721 ft |
| February | 29.4 | −1,001 ft | 37.1 | −464 ft |
| March | 38.7 | −354 ft | 47.8 | 264 ft |
| April | 50.4 | 438 ft | 61.2 | 1,150 ft |
| May | 61.9 | 1,196 ft | 72.5 | 1,876 ft |
| June | 70.9 | 1,774 ft | 80.9 | 2,403 ft |
| July | 73.9 | 1,964 ft | 84.1 | 2,601 ft |
| August | 71.9 | 1,838 ft | 82.2 | 2,484 ft |
| September | 65.4 | 1,422 ft | 76.4 | 2,122 ft |
| October | 53.8 | 665 ft | 63.8 | 1,319 ft |
| November | 41.7 | −149 ft | 49.9 | 405 ft |
| December | 31.6 | −846 ft | 38.2 | −388 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 R47
DENSITY ALTITUDE
Field elevation 801 ft — the air behaves like 2,595 ft.
- PRESSURE ALT
- 802 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
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Frequently asked questions
How high does density altitude get at R47 in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Ruhes reaches roughly 2,601 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 R47 on an average day?
It swings with the seasons: from roughly −1,212 ft at the coldest month's average temperature to about 1,964 ft at the warmest month's — all from a constant field elevation of 801 ft. The month-by-month table above carries the full year.
What is the field elevation of Ruhes?
801 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is R47 (FAA), in Leipsic, Ohio.