Westerly, Rhode Island · field elev 81 ft
Density Altitude at Westerly State (KWST)
Westerly State sits at 81 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 1,567 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 | 32.0 | −1,718 ft | 39.5 | −1,196 ft |
| February | 33.4 | −1,620 ft | 41.2 | −1,079 ft |
| March | 39.6 | −1,189 ft | 47.2 | −669 ft |
| April | 48.9 | −555 ft | 57.1 | −7 ft |
| May | 58.3 | 72 ft | 66.6 | 614 ft |
| June | 67.2 | 653 ft | 75.0 | 1,152 ft |
| July | 73.8 | 1,075 ft | 81.6 | 1,567 ft |
| August | 72.4 | 986 ft | 80.5 | 1,498 ft |
| September | 65.7 | 556 ft | 74.4 | 1,113 ft |
| October | 55.2 | −133 ft | 63.9 | 439 ft |
| November | 45.9 | −758 ft | 54.0 | −213 ft |
| December | 37.6 | −1,327 ft | 44.9 | −826 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 KWST
DENSITY ALTITUDE
Field elevation 81 ft — the air behaves like 1,592 ft.
- PRESSURE ALT
- 82 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
- 08R — Richmond
West Kingston · elev 130 ft
- KBID — Block Island State
Block Island · elev 108 ft
- KOQU — Quonset State
North Kingstown · elev 18 ft
- KUUU — Newport State
Newport · elev 172 ft
- KPVD — Rhode Island Tf Green International
Providence · elev 54 ft
- KSFZ — North Central State
Pawtucket · elev 441 ft
Frequently asked questions
How high does density altitude get at KWST in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Westerly State reaches roughly 1,567 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 KWST on an average day?
It swings with the seasons: from roughly −1,718 ft at the coldest month's average temperature to about 1,075 ft at the warmest month's — all from a constant field elevation of 81 ft. The month-by-month table above carries the full year.
What is the field elevation of Westerly State?
81 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KWST (ICAO) / WST (FAA), in Westerly, Rhode Island.