Rochester, Indiana · field elev 790 ft
Density Altitude at Fulton County (KRCR)
Fulton County sits at 790 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,532 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 | 24.6 | −1,354 ft | 31.9 | −839 ft |
| February | 27.7 | −1,134 ft | 35.8 | −568 ft |
| March | 37.7 | −437 ft | 47.1 | 204 ft |
| April | 49.3 | 351 ft | 60.0 | 1,059 ft |
| May | 60.6 | 1,098 ft | 71.3 | 1,786 ft |
| June | 70.1 | 1,710 ft | 80.2 | 2,346 ft |
| July | 73.0 | 1,894 ft | 83.2 | 2,532 ft |
| August | 71.2 | 1,780 ft | 81.5 | 2,427 ft |
| September | 64.6 | 1,357 ft | 76.0 | 2,083 ft |
| October | 53.0 | 598 ft | 63.5 | 1,286 ft |
| November | 40.5 | −244 ft | 48.9 | 325 ft |
| December | 30.1 | −965 ft | 37.0 | −485 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 KRCR
DENSITY ALTITUDE
Field elevation 790 ft — the air behaves like 2,520 ft.
- PRESSURE ALT
- 791 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 Indiana fields
- C92 — Mentone
Mentone · elev 860 ft
- I76 — Peru Municipal
Peru · elev 779 ft
- C65 — Plymouth Municipal
Plymouth · elev 800 ft
- KRWN — Arens Field
Winamac · elev 708 ft
- KASW — Warsaw Municipal
Warsaw · elev 850 ft
- KGGP — Logansport/Cass County
Logansport · elev 738 ft
- KGUS — Grissom Arb
Peru · elev 811 ft
- KIWH — Wabash Municipal
Wabash · elev 796 ft
Frequently asked questions
How high does density altitude get at KRCR in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Fulton County reaches roughly 2,532 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 KRCR on an average day?
It swings with the seasons: from roughly −1,354 ft at the coldest month's average temperature to about 1,894 ft at the warmest month's — all from a constant field elevation of 790 ft. The month-by-month table above carries the full year.
What is the field elevation of Fulton County?
790 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KRCR (ICAO) / RCR (FAA), in Rochester, Indiana.