Arthur, North Dakota · field elev 973 ft
Density Altitude at Arthur (1A2)
Arthur sits at 973 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 2,607 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 | −2,345 ft | 16.9 | −1,677 ft |
| February | 11.8 | −2,050 ft | 21.6 | −1,339 ft |
| March | 25.8 | −1,039 ft | 35.0 | −395 ft |
| April | 41.7 | 65 ft | 52.8 | 811 ft |
| May | 55.4 | 983 ft | 67.6 | 1,775 ft |
| June | 66.0 | 1,672 ft | 77.0 | 2,370 ft |
| July | 69.7 | 1,909 ft | 80.8 | 2,607 ft |
| August | 67.8 | 1,788 ft | 79.9 | 2,551 ft |
| September | 58.9 | 1,212 ft | 71.4 | 2,017 ft |
| October | 44.7 | 269 ft | 55.6 | 996 ft |
| November | 28.7 | −835 ft | 37.8 | −202 ft |
| December | 14.9 | −1,823 ft | 23.2 | −1,224 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 1A2
DENSITY ALTITUDE
Field elevation 973 ft — the air behaves like 2,619 ft.
- PRESSURE ALT
- 974 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
- 64G — Page Regional
Page · elev 1,218 ft
- 5N8 — Casselton Robert Miller Regional
Casselton · elev 933 ft
- 3H4 — Hillsboro Municipal
Hillsboro · elev 906 ft
- D54 — West Fargo Municipal
Fargo · elev 896 ft
- KFAR — Hector International
Fargo · elev 901 ft
- D56 — Mayville Municipal
Mayville · elev 977 ft
- K74 — Robert Odegaard Field
Kindred · elev 947 ft
- 5N4 — Sky Haven
Enderlin · elev 1,151 ft
Frequently asked questions
How high does density altitude get at 1A2 in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Arthur reaches roughly 2,607 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 1A2 on an average day?
It swings with the seasons: from roughly −2,345 ft at the coldest month's average temperature to about 1,909 ft at the warmest month's — all from a constant field elevation of 973 ft. The month-by-month table above carries the full year.
What is the field elevation of Arthur?
973 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 1A2 (FAA), in Arthur, North Dakota.