Rugby, North Dakota · field elev 1,549 ft
Density Altitude at Rugby Municipal (KRUG)
Rugby Municipal sits at 1,549 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 3,254 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 | 6.0 | −1,751 ft | 15.9 | −1,025 ft |
| February | 10.6 | −1,412 ft | 20.7 | −680 ft |
| March | 23.7 | −467 ft | 33.8 | 240 ft |
| April | 40.0 | 665 ft | 52.0 | 1,470 ft |
| May | 53.2 | 1,549 ft | 66.1 | 2,386 ft |
| June | 62.9 | 2,181 ft | 74.8 | 2,937 ft |
| July | 67.5 | 2,476 ft | 79.9 | 3,254 ft |
| August | 66.3 | 2,399 ft | 79.7 | 3,242 ft |
| September | 56.7 | 1,779 ft | 69.8 | 2,622 ft |
| October | 41.9 | 794 ft | 53.6 | 1,576 ft |
| November | 25.3 | −354 ft | 34.8 | 309 ft |
| December | 11.9 | −1,316 ft | 21.3 | −638 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 KRUG
DENSITY ALTITUDE
Field elevation 1,549 ft — the air behaves like 3,260 ft.
- PRESSURE ALT
- 1,550 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
- D61 — Towner Municipal
Towner · elev 1,484 ft
- 2H9 — Rolette
Rolette · elev 1,623 ft
- D31 — Leeds Municipal
Leeds · elev 1,508 ft
- D09 — Bottineau Municipal
Bottineau · elev 1,680 ft
- 6D3 — Maddock Municipal
Maddock · elev 1,600 ft
- 9D7 — Cando Municipal
Cando · elev 1,482 ft
- 06D — Rolla Municipal/Leonard Krech Field
Rolla · elev 1,823 ft
- 5H4 — Harvey Municipal
Harvey · elev 1,607 ft
Frequently asked questions
How high does density altitude get at KRUG in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Rugby Municipal reaches roughly 3,254 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 KRUG on an average day?
It swings with the seasons: from roughly −1,751 ft at the coldest month's average temperature to about 2,476 ft at the warmest month's — all from a constant field elevation of 1,549 ft. The month-by-month table above carries the full year.
What is the field elevation of Rugby Municipal?
1,549 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KRUG (ICAO) / RUG (FAA), in Rugby, North Dakota.