Casselton, North Dakota · field elev 933 ft
Density Altitude at Casselton Robert Miller Regional (5N8)
Casselton Robert Miller Regional sits at 933 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 2,558 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 | 7.8 | −2,396 ft | 16.9 | −1,728 ft |
| February | 11.8 | −2,100 ft | 21.6 | −1,389 ft |
| March | 25.8 | −1,090 ft | 35.0 | −445 ft |
| April | 41.7 | 15 ft | 52.8 | 762 ft |
| May | 55.4 | 933 ft | 67.6 | 1,726 ft |
| June | 66.0 | 1,623 ft | 77.0 | 2,321 ft |
| July | 69.7 | 1,860 ft | 80.8 | 2,558 ft |
| August | 67.8 | 1,739 ft | 79.9 | 2,502 ft |
| September | 58.9 | 1,163 ft | 71.4 | 1,968 ft |
| October | 44.7 | 219 ft | 55.6 | 947 ft |
| November | 28.7 | −885 ft | 37.8 | −252 ft |
| December | 14.9 | −1,873 ft | 23.2 | −1,274 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 5N8
DENSITY ALTITUDE
Field elevation 933 ft — the air behaves like 2,570 ft.
- PRESSURE ALT
- 934 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 North Dakota fields
- D54 — West Fargo Municipal
Fargo · elev 896 ft
- K74 — Robert Odegaard Field
Kindred · elev 947 ft
- 1A2 — Arthur
Arthur · elev 973 ft
- KFAR — Hector International
Fargo · elev 901 ft
- 5N4 — Sky Haven
Enderlin · elev 1,151 ft
- 64G — Page Regional
Page · elev 1,218 ft
- 3H4 — Hillsboro Municipal
Hillsboro · elev 906 ft
- 6L3 — Lisbon Municipal
Lisbon · elev 1,240 ft
Frequently asked questions
How high does density altitude get at 5N8 in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Casselton Robert Miller Regional reaches roughly 2,558 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 5N8 on an average day?
It swings with the seasons: from roughly −2,396 ft at the coldest month's average temperature to about 1,860 ft at the warmest month's — all from a constant field elevation of 933 ft. The month-by-month table above carries the full year.
What is the field elevation of Casselton Robert Miller Regional?
933 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 5N8 (FAA), in Casselton, North Dakota.