North Kingstown, Rhode Island · field elev 18 ft
Density Altitude at Quonset State (KOQU)
Quonset State sits at 18 ft, and even a typical August afternoon (78 °F) only lifts density altitude to about 1,264 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 | 31.3 | −1,846 ft | 38.6 | −1,336 ft |
| February | 32.6 | −1,755 ft | 40.0 | −1,240 ft |
| March | 38.8 | −1,323 ft | 45.9 | −836 ft |
| April | 47.5 | −727 ft | 55.2 | −211 ft |
| May | 56.7 | −111 ft | 64.8 | 420 ft |
| June | 64.7 | 413 ft | 71.6 | 858 ft |
| July | 70.8 | 807 ft | 77.4 | 1,226 ft |
| August | 71.1 | 826 ft | 78.0 | 1,264 ft |
| September | 66.1 | 504 ft | 72.9 | 941 ft |
| October | 55.9 | −164 ft | 62.7 | 283 ft |
| November | 46.2 | −815 ft | 53.0 | −357 ft |
| December | 37.7 | −1,399 ft | 44.2 | −952 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 KOQU
DENSITY ALTITUDE
Field elevation 18 ft — the air behaves like 1,264 ft.
- PRESSURE ALT
- 19 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 Rhode Island fields
- KUUU — Newport State
Newport · elev 172 ft
- KPVD — Rhode Island Tf Green International
Providence · elev 54 ft
- 08R — Richmond
West Kingston · elev 130 ft
- KSFZ — North Central State
Pawtucket · elev 441 ft
- KWST — Westerly State
Westerly · elev 81 ft
- KBID — Block Island State
Block Island · elev 108 ft
Frequently asked questions
How high does density altitude get at KOQU in summer?
On a typical August afternoon — around 78 °F at the nearest NOAA normals station — density altitude at Quonset State reaches roughly 1,264 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 KOQU on an average day?
It swings with the seasons: from roughly −1,846 ft at the coldest month's average temperature to about 826 ft at the warmest month's — all from a constant field elevation of 18 ft. The month-by-month table above carries the full year.
What is the field elevation of Quonset State?
18 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KOQU (ICAO) / OQU (FAA), in North Kingstown, Rhode Island.