Granite Falls, Minnesota · field elev 1,048 ft
Density Altitude at Granite Falls Municipal/Lenzen-Roe-Fagen Meml Field (KGDB)
Granite Falls Municipal/Lenzen-Roe-Fagen Meml Field sits at 1,048 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 2,958 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 | 13.4 | −1,838 ft | 24.1 | −1,066 ft |
| February | 17.8 | −1,518 ft | 29.0 | −720 ft |
| March | 30.8 | −594 ft | 42.0 | 179 ft |
| April | 45.2 | 396 ft | 57.4 | 1,207 ft |
| May | 58.0 | 1,246 ft | 70.9 | 2,077 ft |
| June | 67.8 | 1,880 ft | 80.2 | 2,661 ft |
| July | 72.4 | 2,172 ft | 85.0 | 2,958 ft |
| August | 69.7 | 2,001 ft | 81.9 | 2,767 ft |
| September | 61.6 | 1,481 ft | 75.1 | 2,343 ft |
| October | 47.5 | 550 ft | 59.7 | 1,357 ft |
| November | 32.5 | −475 ft | 42.8 | 233 ft |
| December | 19.2 | −1,417 ft | 28.6 | −748 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 KGDB
DENSITY ALTITUDE
Field elevation 1,048 ft — the air behaves like 2,958 ft.
- PRESSURE ALT
- 1,049 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 Minnesota fields
- KMVE — Montevideo-Chippewa County
Montevideo · elev 1,034 ft
- KMML — Southwest Minnesota Regional Marshall/Ryan Field
Marshall · elev 1,183 ft
- KOVL — Olivia Regional
Olivia · elev 1,080 ft
- KRWF — Redwood Falls Municipal
Redwood Falls · elev 1,024 ft
- KBDH — Willmar Municipal/John L Rice Field
Willmar · elev 1,126 ft
- KDXX — Lac Qui Parle County
Madison · elev 1,083 ft
- KTKC — Tracy Municipal
Tracy · elev 1,336 ft
- KCNB — Myers Field
Canby · elev 1,194 ft
Frequently asked questions
How high does density altitude get at KGDB in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Granite Falls Municipal/Lenzen-Roe-Fagen Meml Field reaches roughly 2,958 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 KGDB on an average day?
It swings with the seasons: from roughly −1,838 ft at the coldest month's average temperature to about 2,172 ft at the warmest month's — all from a constant field elevation of 1,048 ft. The month-by-month table above carries the full year.
What is the field elevation of Granite Falls Municipal/Lenzen-Roe-Fagen Meml Field?
1,048 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KGDB (ICAO) / GDB (FAA), in Granite Falls, Minnesota.