Mansfield, Louisiana · field elev 324 ft
Density Altitude at C E 'Rusty' Williams (3F3)
C E 'Rusty' Williams sits at 324 ft, and even a typical July afternoon (93 °F) only lifts density altitude to about 2,589 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 | 46.7 | −402 ft | 57.4 | 313 ft |
| February | 51.3 | −92 ft | 62.3 | 634 ft |
| March | 58.1 | 359 ft | 70.4 | 1,157 ft |
| April | 64.4 | 771 ft | 76.1 | 1,519 ft |
| May | 72.6 | 1,297 ft | 83.4 | 1,976 ft |
| June | 80.0 | 1,764 ft | 90.3 | 2,400 ft |
| July | 82.7 | 1,932 ft | 93.4 | 2,589 ft |
| August | 82.7 | 1,932 ft | 93.3 | 2,583 ft |
| September | 76.3 | 1,532 ft | 88.0 | 2,260 ft |
| October | 66.7 | 919 ft | 78.5 | 1,670 ft |
| November | 55.7 | 201 ft | 67.5 | 971 ft |
| December | 48.6 | −273 ft | 59.6 | 458 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 3F3
DENSITY ALTITUDE
Field elevation 324 ft — the air behaves like 2,565 ft.
- PRESSURE ALT
- 325 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 Louisiana fields
- 5F5 — Bluebird Hill
Keithville · elev 180 ft
- KSHV — Shreveport Regional
Shreveport · elev 258 ft
- 0R7 — The Red River
Coushatta · elev 177 ft
- KDTN — Shreveport Downtown
Shreveport · elev 180 ft
- 3R4 — Hart
Many · elev 319 ft
- KIER — Natchitoches Regional
Natchitoches · elev 121 ft
- KMNE — Minden
Minden · elev 278 ft
- 3F4 — Vivian
Vivian · elev 260 ft
Frequently asked questions
How high does density altitude get at 3F3 in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at C E 'Rusty' Williams reaches roughly 2,589 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 3F3 on an average day?
It swings with the seasons: from roughly −402 ft at the coldest month's average temperature to about 1,932 ft at the warmest month's — all from a constant field elevation of 324 ft. The month-by-month table above carries the full year.
What is the field elevation of C E 'Rusty' Williams?
324 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 3F3 (FAA), in Mansfield, Louisiana.