Fairmont, Minnesota · field elev 1,162 ft
Density Altitude at Fairmont Municipal (KFRM)
Fairmont Municipal sits at 1,162 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,967 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 | 15.2 | −1,563 ft | 23.9 | −937 ft |
| February | 19.2 | −1,274 ft | 28.3 | −626 ft |
| March | 31.6 | −395 ft | 40.9 | 246 ft |
| April | 45.6 | 564 ft | 56.3 | 1,275 ft |
| May | 58.9 | 1,445 ft | 68.9 | 2,090 ft |
| June | 69.9 | 2,154 ft | 79.7 | 2,769 ft |
| July | 73.4 | 2,375 ft | 82.9 | 2,967 ft |
| August | 71.0 | 2,223 ft | 80.7 | 2,831 ft |
| September | 63.4 | 1,737 ft | 74.5 | 2,444 ft |
| October | 49.6 | 832 ft | 59.9 | 1,511 ft |
| November | 34.3 | −208 ft | 43.2 | 402 ft |
| December | 21.2 | −1,130 ft | 29.1 | −570 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 KFRM
DENSITY ALTITUDE
Field elevation 1,162 ft — the air behaves like 2,974 ft.
- PRESSURE ALT
- 1,163 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
- KSBU — Blue Earth Municipal
Blue Earth · elev 1,107 ft
- KJYG — St James Municipal
St James · elev 1,068 ft
- KMJQ — Jackson Municipal
Jackson · elev 1,446 ft
- 68Y — Wells Municipal
Wells · elev 1,119 ft
- KMWM — Windom Municipal
Windom · elev 1,411 ft
- Y58 — Sleepy Eye Municipal
Sleepy Eye · elev 1,006 ft
- KULM — New Ulm Municipal
New Ulm · elev 1,011 ft
- KMKT — Mankato Regional
Mankato · elev 1,021 ft
Frequently asked questions
How high does density altitude get at KFRM in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Fairmont Municipal reaches roughly 2,967 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 KFRM on an average day?
It swings with the seasons: from roughly −1,563 ft at the coldest month's average temperature to about 2,375 ft at the warmest month's — all from a constant field elevation of 1,162 ft. The month-by-month table above carries the full year.
What is the field elevation of Fairmont Municipal?
1,162 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFRM (ICAO) / FRM (FAA), in Fairmont, Minnesota.