Lyndonville, Vermont · field elev 1,188 ft
Density Altitude at Caledonia County (KCDA)
Caledonia County sits at 1,188 ft, and even a typical July afternoon (77 °F) only lifts density altitude to about 2,633 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 | 10.7 | −1,859 ft | 22.7 | −990 ft |
| February | 12.9 | −1,698 ft | 26.6 | −714 ft |
| March | 22.9 | −976 ft | 35.9 | −65 ft |
| April | 37.3 | 32 ft | 49.8 | 878 ft |
| May | 50.3 | 911 ft | 64.3 | 1,827 ft |
| June | 59.4 | 1,510 ft | 72.4 | 2,344 ft |
| July | 64.0 | 1,808 ft | 77.0 | 2,633 ft |
| August | 62.1 | 1,685 ft | 75.7 | 2,552 ft |
| September | 54.4 | 1,182 ft | 68.3 | 2,084 ft |
| October | 42.4 | 380 ft | 54.2 | 1,169 ft |
| November | 30.7 | −426 ft | 40.5 | 251 ft |
| December | 18.9 | −1,263 ft | 28.8 | −559 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 KCDA
DENSITY ALTITUDE
Field elevation 1,188 ft — the air behaves like 2,633 ft.
- PRESSURE ALT
- 1,189 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 Vermont fields
- 5B1 — John H Boylan State (Island Pond)
Island Pond · elev 1,194 ft
- KEFK — Northeast Kingdom International
Newport · elev 934 ft
- KMVL — Morrisville-Stowe State
Morrisville · elev 733 ft
- KMPV — Edward F Knapp State
Barre/Montpelier · elev 1,166 ft
- 2B9 — Post Mills
Post Mills · elev 696 ft
- 0B7 — Warren-Sugarbush
Warren · elev 1,470 ft
- KBTV — Patrick Leahy Burlington International
Burlington · elev 335 ft
- KFSO — Franklin County State
Highgate · elev 228 ft
Frequently asked questions
How high does density altitude get at KCDA in summer?
On a typical July afternoon — around 77 °F at the nearest NOAA normals station — density altitude at Caledonia County reaches roughly 2,633 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 KCDA on an average day?
It swings with the seasons: from roughly −1,859 ft at the coldest month's average temperature to about 1,808 ft at the warmest month's — all from a constant field elevation of 1,188 ft. The month-by-month table above carries the full year.
What is the field elevation of Caledonia County?
1,188 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCDA (ICAO) / CDA (FAA), in Lyndonville, Vermont.