Willimantic, Connecticut · field elev 246 ft
Density Altitude at Windham (KIJD)
Windham sits at 246 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 1,843 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 | 27.1 | −1,858 ft | 36.2 | −1,218 ft |
| February | 29.1 | −1,716 ft | 38.8 | −1,038 ft |
| March | 37.0 | −1,163 ft | 47.0 | −478 ft |
| April | 48.0 | −411 ft | 59.2 | 335 ft |
| May | 58.5 | 289 ft | 70.0 | 1,036 ft |
| June | 67.0 | 843 ft | 77.9 | 1,537 ft |
| July | 72.4 | 1,189 ft | 82.8 | 1,843 ft |
| August | 70.6 | 1,074 ft | 81.0 | 1,731 ft |
| September | 63.3 | 603 ft | 74.3 | 1,309 ft |
| October | 51.8 | −155 ft | 62.8 | 571 ft |
| November | 41.5 | −853 ft | 51.6 | −169 ft |
| December | 32.6 | −1,470 ft | 41.3 | −866 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 KIJD
DENSITY ALTITUDE
Field elevation 246 ft — the air behaves like 1,856 ft.
- PRESSURE ALT
- 247 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 Connecticut fields
- KLZD — Danielson
Danielson · elev 238 ft
- C44 — Toutant
Putnam · elev 770 ft
- 9B8 — Salmon River Airfield
Marlborough · elev 540 ft
- 7B9 — Ellington
Ellington · elev 253 ft
- 7B6 — Skylark Airpark
Warehouse Point · elev 120 ft
- KHFD — Hartford-Brainard
Hartford · elev 18 ft
- 42B — Goodspeed
East Haddam · elev 9 ft
- KBDL — Bradley International
Windsor Locks · elev 173 ft
Frequently asked questions
How high does density altitude get at KIJD in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Windham reaches roughly 1,843 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 KIJD on an average day?
It swings with the seasons: from roughly −1,858 ft at the coldest month's average temperature to about 1,189 ft at the warmest month's — all from a constant field elevation of 246 ft. The month-by-month table above carries the full year.
What is the field elevation of Windham?
246 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KIJD (ICAO) / IJD (FAA), in Willimantic, Connecticut.