Dubuque, Iowa · field elev 1,076 ft
Density Altitude at Dubuque Regional (KDBQ)
Dubuque Regional sits at 1,076 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,776 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 | 18.8 | −1,411 ft | 26.5 | −861 ft |
| February | 22.9 | −1,117 ft | 30.9 | −552 ft |
| March | 35.2 | −253 ft | 44.1 | 356 ft |
| April | 47.4 | 578 ft | 57.7 | 1,261 ft |
| May | 58.8 | 1,333 ft | 69.2 | 2,004 ft |
| June | 68.5 | 1,959 ft | 78.5 | 2,590 ft |
| July | 71.7 | 2,162 ft | 81.5 | 2,776 ft |
| August | 69.8 | 2,042 ft | 79.6 | 2,658 ft |
| September | 62.3 | 1,560 ft | 72.9 | 2,238 ft |
| October | 49.9 | 746 ft | 59.9 | 1,405 ft |
| November | 36.4 | −170 ft | 44.8 | 403 ft |
| December | 24.5 | −1,003 ft | 31.8 | −489 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 KDBQ
DENSITY ALTITUDE
Field elevation 1,076 ft — the air behaves like 2,807 ft.
- PRESSURE ALT
- 1,077 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 Iowa fields
- KOQW — Maquoketa Municipal
Maquoketa · elev 774 ft
- IA8 — Dyersville Area
Dyersville · elev 980 ft
- KMXO — Monticello Regional
Monticello · elev 833 ft
- C27 — Manchester Municipal
Manchester · elev 987 ft
- KCWI — Clinton Municipal
Clinton · elev 708 ft
- I27 — Elkader
Elkader · elev 932 ft
- C17 — Marion
Marion · elev 861 ft
- 8C4 — Mathews Meml
Tipton · elev 840 ft
Frequently asked questions
How high does density altitude get at KDBQ in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Dubuque Regional reaches roughly 2,776 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 KDBQ on an average day?
It swings with the seasons: from roughly −1,411 ft at the coldest month's average temperature to about 2,162 ft at the warmest month's — all from a constant field elevation of 1,076 ft. The month-by-month table above carries the full year.
What is the field elevation of Dubuque Regional?
1,076 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KDBQ (ICAO) / DBQ (FAA), in Dubuque, Iowa.