Garrison, North Dakota · field elev 1,937 ft
Density Altitude at Garrison Municipal (D05)
Garrison Municipal sits at 1,937 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 3,814 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 | 10.6 | −923 ft | 19.5 | −279 ft |
| February | 14.7 | −624 ft | 24.3 | 61 ft |
| March | 27.0 | 251 ft | 36.7 | 923 ft |
| April | 41.3 | 1,235 ft | 52.8 | 2,002 ft |
| May | 54.1 | 2,087 ft | 65.8 | 2,844 ft |
| June | 63.8 | 2,716 ft | 74.5 | 3,393 ft |
| July | 69.8 | 3,097 ft | 81.3 | 3,814 ft |
| August | 68.5 | 3,015 ft | 81.2 | 3,808 ft |
| September | 58.9 | 2,400 ft | 71.3 | 3,192 ft |
| October | 44.1 | 1,424 ft | 55.0 | 2,146 ft |
| November | 28.9 | 384 ft | 37.9 | 1,005 ft |
| December | 16.7 | −480 ft | 25.0 | 111 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 D05
DENSITY ALTITUDE
Field elevation 1,937 ft — the air behaves like 3,795 ft.
- PRESSURE ALT
- 1,938 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 North Dakota fields
- 37N — Garrison Dam Recreational Airpark
Riverdale · elev 1,723 ft
- KHZE — Mercer County Regional
Hazen · elev 1,815 ft
- 91N — Turtle Lake Municipal
Turtle Lake · elev 1,916 ft
- 5C8 — Washburn Municipal
Washburn · elev 1,908 ft
- 95D — Beulah
Beulah · elev 1,791 ft
- Y99 — Trulson Field
Plaza · elev 2,105 ft
- Y74 — Parshall-Hankins
Parshall · elev 2,032 ft
- KMOT — Minot International
Minot · elev 1,716 ft
Frequently asked questions
How high does density altitude get at D05 in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Garrison Municipal reaches roughly 3,814 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 D05 on an average day?
It swings with the seasons: from roughly −923 ft at the coldest month's average temperature to about 3,097 ft at the warmest month's — all from a constant field elevation of 1,937 ft. The month-by-month table above carries the full year.
What is the field elevation of Garrison Municipal?
1,937 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is D05 (FAA), in Garrison, North Dakota.