Thief River Falls, Minnesota · field elev 1,119 ft
Density Altitude at Thief River Falls Regional (KTVF)
Thief River Falls Regional sits at 1,119 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 2,723 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 | 5.3 | −2,347 ft | 13.5 | −1,741 ft |
| February | 11.0 | −1,924 ft | 20.3 | −1,249 ft |
| March | 25.3 | −892 ft | 34.8 | −227 ft |
| April | 41.6 | 240 ft | 53.3 | 1,025 ft |
| May | 55.0 | 1,137 ft | 67.8 | 1,967 ft |
| June | 64.6 | 1,762 ft | 76.1 | 2,492 ft |
| July | 68.2 | 1,993 ft | 79.8 | 2,723 ft |
| August | 67.2 | 1,929 ft | 79.1 | 2,680 ft |
| September | 57.9 | 1,327 ft | 69.2 | 2,056 ft |
| October | 43.8 | 389 ft | 53.0 | 1,005 ft |
| November | 26.8 | −786 ft | 34.4 | −254 ft |
| December | 12.4 | −1,822 ft | 20.2 | −1,256 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 KTVF
DENSITY ALTITUDE
Field elevation 1,119 ft — the air behaves like 2,735 ft.
- PRESSURE ALT
- 1,120 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
- D81 — Red Lake Falls Municipal
Red Lake Falls · elev 1,060 ft
- KCKN — Crookston Municipal/Kirkwood Field
Crookston · elev 897 ft
- D37 — Warren Municipal
Warren · elev 888 ft
- 3G2 — Grygla Municipal - Mel Wilkens Field
Grygla · elev 1,177 ft
- D14 — Fertile Municipal
Fertile · elev 1,137 ft
- KFSE — Fosston Municipal/Anderson Field
Fosston · elev 1,279 ft
- 23D — Karlstad Municipal
Karlstad · elev 1,025 ft
- D41 — Stephen Municipal
Stephen · elev 830 ft
Frequently asked questions
How high does density altitude get at KTVF in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Thief River Falls Regional reaches roughly 2,723 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 KTVF on an average day?
It swings with the seasons: from roughly −2,347 ft at the coldest month's average temperature to about 1,993 ft at the warmest month's — all from a constant field elevation of 1,119 ft. The month-by-month table above carries the full year.
What is the field elevation of Thief River Falls Regional?
1,119 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KTVF (ICAO) / TVF (FAA), in Thief River Falls, Minnesota.