Rantoul, Illinois · field elev 738 ft
Density Altitude at Rantoul Ntl Avn Cntr-Frank Elliott Field (KTIP)
Rantoul Ntl Avn Cntr-Frank Elliott Field sits at 738 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 2,733 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 | 25.1 | −1,384 ft | 34.4 | −730 ft |
| February | 29.6 | −1,065 ft | 39.6 | −371 ft |
| March | 40.4 | −316 ft | 51.4 | 427 ft |
| April | 51.9 | 460 ft | 64.3 | 1,274 ft |
| May | 63.3 | 1,209 ft | 75.4 | 1,982 ft |
| June | 73.3 | 1,849 ft | 84.9 | 2,574 ft |
| July | 75.8 | 2,007 ft | 87.5 | 2,733 ft |
| August | 73.7 | 1,875 ft | 85.9 | 2,635 ft |
| September | 67.5 | 1,480 ft | 80.7 | 2,314 ft |
| October | 54.7 | 646 ft | 67.3 | 1,467 ft |
| November | 41.8 | −220 ft | 52.3 | 487 ft |
| December | 30.9 | −974 ft | 39.8 | −357 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 KTIP
DENSITY ALTITUDE
Field elevation 738 ft — the air behaves like 2,764 ft.
- PRESSURE ALT
- 739 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
- C16 — Frasca Field
Urbana · elev 735 ft
- 1C1 — Paxton
Paxton · elev 779 ft
- KCMI — University Of Illinois/Willard
Champaign/Urbana · elev 755 ft
- KDNV — Vermilion Regional
Danville · elev 697 ft
- K96 — Tuscola
Tuscola · elev 665 ft
- KBMI — Central Il Regional/Bloomington-Normal
Bloomington/Normal · elev 871 ft
- KPRG — Edgar County
Paris · elev 654 ft
- KDEC — Decatur
Decatur · elev 682 ft
Frequently asked questions
How high does density altitude get at KTIP in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Rantoul Ntl Avn Cntr-Frank Elliott Field reaches roughly 2,733 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 KTIP on an average day?
It swings with the seasons: from roughly −1,384 ft at the coldest month's average temperature to about 2,007 ft at the warmest month's — all from a constant field elevation of 738 ft. The month-by-month table above carries the full year.
What is the field elevation of Rantoul Ntl Avn Cntr-Frank Elliott Field?
738 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KTIP (ICAO) / TIP (FAA), in Rantoul, Illinois.