Stephen, Minnesota · field elev 830 ft
Density Altitude at Stephen Municipal (D41)
Stephen Municipal sits at 830 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,488 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 | −2,705 ft | 15.5 | −1,959 ft |
| February | 9.6 | −2,392 ft | 20.9 | −1,568 ft |
| March | 23.9 | −1,354 ft | 35.0 | −573 ft |
| April | 40.5 | −195 ft | 52.7 | 627 ft |
| May | 53.9 | 707 ft | 67.6 | 1,599 ft |
| June | 64.4 | 1,393 ft | 77.1 | 2,201 ft |
| July | 68.4 | 1,650 ft | 81.7 | 2,488 ft |
| August | 66.9 | 1,554 ft | 81.2 | 2,457 ft |
| September | 58.0 | 977 ft | 71.7 | 1,861 ft |
| October | 43.5 | 10 ft | 55.1 | 786 ft |
| November | 26.9 | −1,141 ft | 36.2 | −490 ft |
| December | 13.0 | −2,142 ft | 22.0 | −1,489 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 D41
DENSITY ALTITUDE
Field elevation 830 ft — the air behaves like 2,507 ft.
- PRESSURE ALT
- 831 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
- 23D — Karlstad Municipal
Karlstad · elev 1,025 ft
- D37 — Warren Municipal
Warren · elev 888 ft
- KHCO — Hallock Municipal
Hallock · elev 820 ft
- KTVF — Thief River Falls Regional
Thief River Falls · elev 1,119 ft
- KCKN — Crookston Municipal/Kirkwood Field
Crookston · elev 897 ft
- D81 — Red Lake Falls Municipal
Red Lake Falls · elev 1,060 ft
- 3G2 — Grygla Municipal - Mel Wilkens Field
Grygla · elev 1,177 ft
- KROX — Roseau Municipal/Rudy Billberg Field
Roseau · elev 1,060 ft
Frequently asked questions
How high does density altitude get at D41 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Stephen Municipal reaches roughly 2,488 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 D41 on an average day?
It swings with the seasons: from roughly −2,705 ft at the coldest month's average temperature to about 1,650 ft at the warmest month's — all from a constant field elevation of 830 ft. The month-by-month table above carries the full year.
What is the field elevation of Stephen Municipal?
830 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is D41 (FAA), in Stephen, Minnesota.