Holyoke, Colorado · field elev 3,730 ft
Density Altitude at Holyoke (KHEQ)
From a field elevation of 3,730 ft, a typical July afternoon at Holyoke (88 °F) raises density altitude to about 6,399 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 27.2 | 2,502 ft | 41.6 | 3,478 ft |
| February | 29.4 | 2,654 ft | 44.2 | 3,650 ft |
| March | 38.4 | 3,264 ft | 54.1 | 4,297 ft |
| April | 46.4 | 3,795 ft | 61.8 | 4,789 ft |
| May | 56.7 | 4,464 ft | 70.9 | 5,359 ft ▲ |
| June | 67.8 | 5,166 ft | 82.5 | 6,069 ft ▲ |
| July | 73.3 | 5,508 ft | 88.0 | 6,399 ft ▲ |
| August | 71.1 | 5,372 ft | 86.2 | 6,291 ft ▲ |
| September | 62.6 | 4,839 ft | 78.6 | 5,832 ft ▲ |
| October | 49.0 | 3,965 ft | 65.2 | 5,003 ft ▲ |
| November | 37.0 | 3,170 ft | 52.5 | 4,193 ft |
| December | 27.6 | 2,530 ft | 42.3 | 3,524 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 KHEQ
DENSITY ALTITUDE caution
Field elevation 3,730 ft — the air behaves like 6,399 ft.
- PRESSURE ALT
- 3,732 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 Colorado fields
- 17V — Haxtun Municipal
Haxtun · elev 4,035 ft
- 7V8 — Julesburg Municipal
Julesburg · elev 3,495 ft
- KRYA — Wray Municipal
Wray · elev 3,678 ft
- 2V6 — Yuma Municipal
Yuma · elev 4,138 ft
- KSTK — Sterling Municipal
Sterling · elev 4,038 ft
- KAKO — Colorado Plains Regional
Akron · elev 4,716 ft
- 7V5 — Brush Municipal
Brush · elev 4,280 ft
- KFMM — Fort Morgan Municipal
Fort Morgan · elev 4,595 ft
Frequently asked questions
How high does density altitude get at KHEQ in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Holyoke reaches roughly 6,399 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 KHEQ on an average day?
It swings with the seasons: from roughly 2,502 ft at the coldest month's average temperature to about 5,508 ft at the warmest month's — all from a constant field elevation of 3,730 ft. The month-by-month table above carries the full year.
What is the field elevation of Holyoke?
3,730 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHEQ (ICAO) / HEQ (FAA), in Holyoke, Colorado.