Summersville, West Virginia · field elev 1,820 ft
Density Altitude at Summersville (KSXL)
Summersville sits at 1,820 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 3,677 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 | 30.6 | 356 ft | 40.5 | 1,036 ft |
| February | 33.4 | 550 ft | 44.2 | 1,286 ft |
| March | 40.3 | 1,022 ft | 51.9 | 1,798 ft |
| April | 51.5 | 1,772 ft | 64.9 | 2,642 ft |
| May | 60.2 | 2,340 ft | 72.3 | 3,112 ft |
| June | 67.6 | 2,815 ft | 78.4 | 3,492 ft |
| July | 71.1 | 3,036 ft | 81.4 | 3,677 ft |
| August | 69.8 | 2,954 ft | 80.4 | 3,616 ft |
| September | 64.1 | 2,591 ft | 75.5 | 3,312 ft |
| October | 53.1 | 1,877 ft | 64.9 | 2,642 ft |
| November | 42.7 | 1,185 ft | 53.7 | 1,917 ft |
| December | 35.1 | 667 ft | 44.6 | 1,313 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 KSXL
DENSITY ALTITUDE
Field elevation 1,820 ft — the air behaves like 3,653 ft.
- PRESSURE ALT
- 1,821 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- AIR DENSITY
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- WATER · GRAINS/LB
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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 West Virginia fields
- 3I4 — Richwood Municipal
Richwood · elev 2,486 ft
- 48I — Braxton County
Sutton · elev 1,276 ft
- KBKW — Raleigh County Meml
Beckley · elev 2,504 ft
- KLWB — Greenbrier Valley
Lewisburg · elev 2,302 ft
- KCRW — West Virginia International Yeager
Charleston · elev 947 ft
- 55I — Slate Run
Spencer · elev 1,001 ft
- KUSW — Boggs Field
Spencer · elev 928 ft
- I16 — Kee Field
Pineville · elev 1,783 ft
Frequently asked questions
How high does density altitude get at KSXL in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Summersville reaches roughly 3,677 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 KSXL on an average day?
It swings with the seasons: from roughly 356 ft at the coldest month's average temperature to about 3,036 ft at the warmest month's — all from a constant field elevation of 1,820 ft. The month-by-month table above carries the full year.
What is the field elevation of Summersville?
1,820 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KSXL (ICAO) / SXL (FAA), in Summersville, West Virginia.