New Castle, Indiana · field elev 1,090 ft
Density Altitude at New Castle Henry County Marlatt Field (KUWL)
New Castle Henry County Marlatt Field sits at 1,090 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,892 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 | 25.6 | −907 ft | 34.1 | −311 ft |
| February | 28.7 | −688 ft | 38.0 | −42 ft |
| March | 38.4 | −15 ft | 48.8 | 689 ft |
| April | 50.1 | 776 ft | 61.8 | 1,545 ft |
| May | 60.9 | 1,487 ft | 72.2 | 2,211 ft |
| June | 69.4 | 2,033 ft | 80.2 | 2,712 ft |
| July | 72.1 | 2,205 ft | 83.1 | 2,892 ft |
| August | 70.5 | 2,103 ft | 82.0 | 2,824 ft |
| September | 64.6 | 1,726 ft | 77.2 | 2,526 ft |
| October | 53.1 | 976 ft | 65.2 | 1,765 ft |
| November | 40.8 | 149 ft | 50.6 | 810 ft |
| December | 30.9 | −534 ft | 38.8 | 13 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 KUWL
DENSITY ALTITUDE
Field elevation 1,090 ft — the air behaves like 2,886 ft.
- PRESSURE ALT
- 1,091 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
- I61 — Hagerstown
Hagerstown · elev 1,000 ft
- KCEV — Mettel Field
Connersville · elev 866 ft
- 7I2 — Reese
Muncie · elev 991 ft
- KAID — Anderson Regional
Anderson · elev 919 ft
- KGFD — Pope Field
Greenfield · elev 895 ft
- KMIE — Delaware County Regional
Muncie · elev 937 ft
- KRID — Richmond Municipal
Richmond · elev 1,140 ft
- I22 — Randolph County
Winchester · elev 1,123 ft
Frequently asked questions
How high does density altitude get at KUWL in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at New Castle Henry County Marlatt Field reaches roughly 2,892 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 KUWL on an average day?
It swings with the seasons: from roughly −907 ft at the coldest month's average temperature to about 2,205 ft at the warmest month's — all from a constant field elevation of 1,090 ft. The month-by-month table above carries the full year.
What is the field elevation of New Castle Henry County Marlatt Field?
1,090 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KUWL (ICAO) / UWL (FAA), in New Castle, Indiana.