Glasgow, Montana · field elev 2,296 ft
Density Altitude at Wokal Field/Glasgow-Valley County (KGGW)
Wokal Field/Glasgow-Valley County sits at 2,296 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 4,508 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 | 14.6 | −180 ft | 23.5 | 454 ft |
| February | 18.7 | 114 ft | 28.0 | 769 ft |
| March | 31.6 | 1,019 ft | 41.8 | 1,715 ft |
| April | 44.8 | 1,916 ft | 56.8 | 2,706 ft |
| May | 55.5 | 2,622 ft | 67.7 | 3,405 ft |
| June | 64.5 | 3,201 ft | 76.3 | 3,943 ft |
| July | 72.0 | 3,675 ft | 85.5 | 4,508 ft |
| August | 71.0 | 3,612 ft | 84.8 | 4,465 ft |
| September | 59.9 | 2,907 ft | 72.9 | 3,732 ft |
| October | 45.2 | 1,942 ft | 56.5 | 2,687 ft |
| November | 30.2 | 922 ft | 40.0 | 1,593 ft |
| December | 18.5 | 99 ft | 27.2 | 714 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 KGGW
DENSITY ALTITUDE
Field elevation 2,296 ft — the air behaves like 4,538 ft.
- PRESSURE ALT
- 2,297 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- 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 Montana fields
- 37S — Fort Peck
Fort Peck · elev 2,290 ft
- 6U5 — Hinsdale
Hinsdale · elev 2,220 ft
- S00 — Opheim
Opheim · elev 3,264 ft
- KOLF — L M Clayton
Wolf Point · elev 1,989 ft
- M75 — Malta
Malta · elev 2,254 ft
- KJDN — Jordan
Jordan · elev 2,667 ft
- PO1 — Poplar Municipal
Poplar · elev 2,037 ft
- 9S2 — Scobey
Scobey · elev 2,434 ft
Frequently asked questions
How high does density altitude get at KGGW in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Wokal Field/Glasgow-Valley County reaches roughly 4,508 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 KGGW on an average day?
It swings with the seasons: from roughly −180 ft at the coldest month's average temperature to about 3,675 ft at the warmest month's — all from a constant field elevation of 2,296 ft. The month-by-month table above carries the full year.
What is the field elevation of Wokal Field/Glasgow-Valley County?
2,296 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KGGW (ICAO) / GGW (FAA), in Glasgow, Montana.