Richardton, North Dakota · field elev 2,498 ft
Density Altitude at Richardton (4E8)
Richardton sits at 2,498 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 4,589 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 | 15.6 | 145 ft | 24.0 | 742 ft |
| February | 18.8 | 374 ft | 27.4 | 980 ft |
| March | 30.2 | 1,174 ft | 40.0 | 1,844 ft |
| April | 42.5 | 2,012 ft | 53.8 | 2,760 ft |
| May | 54.6 | 2,812 ft | 66.1 | 3,551 ft |
| June | 64.1 | 3,424 ft | 75.4 | 4,134 ft |
| July | 70.6 | 3,835 ft | 82.8 | 4,589 ft |
| August | 69.6 | 3,772 ft | 82.2 | 4,553 ft |
| September | 59.7 | 3,142 ft | 71.8 | 3,910 ft |
| October | 44.7 | 2,159 ft | 55.0 | 2,838 ft |
| November | 30.3 | 1,181 ft | 39.1 | 1,783 ft |
| December | 19.4 | 417 ft | 27.7 | 1,001 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 4E8
DENSITY ALTITUDE
Field elevation 2,498 ft — the air behaves like 4,601 ft.
- PRESSURE ALT
- 2,500 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
- KDIK — Dickinson/Theodore Roosevelt Regional
Dickinson · elev 2,592 ft
- D57 — Glen Ullin Regional
Glen Ullin · elev 2,091 ft
- 95D — Beulah
Beulah · elev 1,791 ft
- 3P3 — Mott Municipal
Mott · elev 2,414 ft
- 9Y1 — Dunn County Weydahl Field
Killdeer · elev 2,249 ft
- Y71 — Elgin Municipal
Elgin · elev 2,355 ft
- KHZE — Mercer County Regional
Hazen · elev 1,815 ft
- 37N — Garrison Dam Recreational Airpark
Riverdale · elev 1,723 ft
Frequently asked questions
How high does density altitude get at 4E8 in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Richardton reaches roughly 4,589 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 4E8 on an average day?
It swings with the seasons: from roughly 145 ft at the coldest month's average temperature to about 3,835 ft at the warmest month's — all from a constant field elevation of 2,498 ft. The month-by-month table above carries the full year.
What is the field elevation of Richardton?
2,498 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 4E8 (FAA), in Richardton, North Dakota.