Fosston, Minnesota · field elev 1,279 ft
Density Altitude at Fosston Municipal/Anderson Field (KFSE)
Fosston Municipal/Anderson Field sits at 1,279 ft, and even a typical July afternoon (78 °F) only lifts density altitude to about 2,819 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 | 5.4 | −2,137 ft | 15.9 | −1,365 ft |
| February | 9.8 | −1,811 ft | 21.2 | −983 ft |
| March | 23.9 | −791 ft | 34.8 | −27 ft |
| April | 39.6 | 302 ft | 51.3 | 1,090 ft |
| May | 53.3 | 1,222 ft | 65.5 | 2,016 ft |
| June | 63.1 | 1,862 ft | 74.3 | 2,575 ft |
| July | 66.8 | 2,100 ft | 78.2 | 2,819 ft |
| August | 64.9 | 1,978 ft | 77.4 | 2,769 ft |
| September | 56.6 | 1,439 ft | 68.8 | 2,227 ft |
| October | 42.8 | 520 ft | 53.2 | 1,216 ft |
| November | 26.9 | −579 ft | 35.9 | 49 ft |
| December | 13.0 | −1,576 ft | 22.1 | −919 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 KFSE
DENSITY ALTITUDE
Field elevation 1,279 ft — the air behaves like 2,807 ft.
- PRESSURE ALT
- 1,280 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
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- 7Y4 — Bagley Municipal
Bagley · elev 1,503 ft
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- D14 — Fertile Municipal
Fertile · elev 1,137 ft
- D81 — Red Lake Falls Municipal
Red Lake Falls · elev 1,060 ft
- D00 — Norman County Ada/Twin Valley
Ada/Twin Valley · elev 954 ft
- KTVF — Thief River Falls Regional
Thief River Falls · elev 1,119 ft
- KBJI — Bemidji Regional
Bemidji · elev 1,391 ft
- KCKN — Crookston Municipal/Kirkwood Field
Crookston · elev 897 ft
Frequently asked questions
How high does density altitude get at KFSE in summer?
On a typical July afternoon — around 78 °F at the nearest NOAA normals station — density altitude at Fosston Municipal/Anderson Field reaches roughly 2,819 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 KFSE on an average day?
It swings with the seasons: from roughly −2,137 ft at the coldest month's average temperature to about 2,100 ft at the warmest month's — all from a constant field elevation of 1,279 ft. The month-by-month table above carries the full year.
What is the field elevation of Fosston Municipal/Anderson Field?
1,279 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFSE (ICAO) / FSE (FAA), in Fosston, Minnesota.