Mc Connelsville, Ohio · field elev 1,000 ft
Density Altitude at Morgan County (I71)
Morgan County sits at 1,000 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,825 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 | 29.5 | −745 ft | 38.8 | −99 ft |
| February | 32.2 | −556 ft | 42.2 | 133 ft |
| March | 40.6 | 24 ft | 52.0 | 791 ft |
| April | 51.7 | 771 ft | 65.0 | 1,641 ft |
| May | 61.0 | 1,382 ft | 73.1 | 2,158 ft |
| June | 69.3 | 1,917 ft | 80.4 | 2,615 ft |
| July | 73.2 | 2,164 ft | 83.8 | 2,825 ft |
| August | 72.1 | 2,094 ft | 83.4 | 2,801 ft |
| September | 65.7 | 1,686 ft | 77.9 | 2,459 ft |
| October | 53.8 | 911 ft | 66.2 | 1,718 ft |
| November | 42.8 | 174 ft | 53.6 | 897 ft |
| December | 34.3 | −410 ft | 43.1 | 194 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 I71
DENSITY ALTITUDE
Field elevation 1,000 ft — the air behaves like 2,838 ft.
- PRESSURE ALT
- 1,001 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 Ohio fields
- I10 — Noble County
Caldwell · elev 879 ft
- KZZV — Zanesville Municipal
Zanesville · elev 900 ft
- I86 — Ed Newlon Field
New Lexington · elev 1,052 ft
- KCDI — Cambridge Municipal
Cambridge · elev 799 ft
- 42I — Parr
Zanesville · elev 790 ft
- KUNI — Ohio University
Athens/Albany · elev 766 ft
- 4G5 — Monroe County
Woodsfield · elev 1,197 ft
- 6G5 — Barnesville/Bradfield
Barnesville · elev 1,312 ft
Frequently asked questions
How high does density altitude get at I71 in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Morgan County reaches roughly 2,825 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 I71 on an average day?
It swings with the seasons: from roughly −745 ft at the coldest month's average temperature to about 2,164 ft at the warmest month's — all from a constant field elevation of 1,000 ft. The month-by-month table above carries the full year.
What is the field elevation of Morgan County?
1,000 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is I71 (FAA), in Mc Connelsville, Ohio.