Shelbyville, Illinois · field elev 619 ft
Density Altitude at Shelby County (2H0)
Shelby County sits at 619 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 2,496 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 | 27.6 | −1,355 ft | 35.9 | −774 ft |
| February | 32.0 | −1,046 ft | 41.1 | −416 ft |
| March | 42.0 | −354 ft | 51.9 | 313 ft |
| April | 53.6 | 426 ft | 64.0 | 1,108 ft |
| May | 64.0 | 1,108 ft | 73.7 | 1,729 ft |
| June | 72.9 | 1,678 ft | 82.5 | 2,280 ft |
| July | 76.3 | 1,893 ft | 86.0 | 2,496 ft |
| August | 74.7 | 1,792 ft | 84.9 | 2,429 ft |
| September | 68.1 | 1,372 ft | 79.6 | 2,100 ft |
| October | 55.9 | 578 ft | 67.1 | 1,308 ft |
| November | 42.9 | −293 ft | 52.3 | 340 ft |
| December | 32.6 | −1,004 ft | 40.6 | −450 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 2H0
DENSITY ALTITUDE
Field elevation 619 ft — the air behaves like 2,496 ft.
- PRESSURE ALT
- 620 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 Illinois fields
- KTAZ — Taylorville Municipal
Taylorville · elev 622 ft
- 1H2 — Effingham County Regional
Effingham · elev 585 ft
- KDEC — Decatur
Decatur · elev 682 ft
- KMTO — Coles County Meml
Mattoon/Charleston · elev 722 ft
- 2T2 — Percival Springs
Watson · elev 552 ft
- KVLA — Vandalia Municipal
Vandalia · elev 537 ft
- K96 — Tuscola
Tuscola · elev 665 ft
- 1H8 — Casey Municipal
Casey · elev 655 ft
Frequently asked questions
How high does density altitude get at 2H0 in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Shelby County reaches roughly 2,496 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 2H0 on an average day?
It swings with the seasons: from roughly −1,355 ft at the coldest month's average temperature to about 1,893 ft at the warmest month's — all from a constant field elevation of 619 ft. The month-by-month table above carries the full year.
What is the field elevation of Shelby County?
619 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2H0 (FAA), in Shelbyville, Illinois.