Watford City, North Dakota · field elev 2,135 ft
Density Altitude at Watford City Municipal (S25)
Watford City Municipal sits at 2,135 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 4,110 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 | 13.4 | −470 ft | 21.6 | 118 ft |
| February | 17.2 | −196 ft | 26.2 | 443 ft |
| March | 28.8 | 624 ft | 38.8 | 1,312 ft |
| April | 41.8 | 1,515 ft | 53.1 | 2,266 ft |
| May | 53.5 | 2,292 ft | 64.8 | 3,023 ft |
| June | 63.5 | 2,940 ft | 74.1 | 3,610 ft |
| July | 70.0 | 3,353 ft | 82.2 | 4,110 ft |
| August | 68.5 | 3,258 ft | 81.6 | 4,074 ft |
| September | 58.0 | 2,586 ft | 71.1 | 3,422 ft |
| October | 43.7 | 1,643 ft | 54.7 | 2,371 ft |
| November | 29.0 | 638 ft | 38.0 | 1,257 ft |
| December | 18.0 | −138 ft | 26.2 | 443 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 S25
DENSITY ALTITUDE
Field elevation 2,135 ft — the air behaves like 4,098 ft.
- PRESSURE ALT
- 2,136 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
- 9Y1 — Dunn County Weydahl Field
Killdeer · elev 2,249 ft
- 05D — New Town Municipal
New Town · elev 1,924 ft
- KXWA — Williston Basin International
Williston · elev 2,356 ft
- D60 — Tioga Municipal
Tioga · elev 2,271 ft
- Y74 — Parshall-Hankins
Parshall · elev 2,032 ft
- 08D — Stanley Municipal
Stanley · elev 2,250 ft
- Y99 — Trulson Field
Plaza · elev 2,105 ft
- 20U — Beach
Beach · elev 2,756 ft
Frequently asked questions
How high does density altitude get at S25 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Watford City Municipal reaches roughly 4,110 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 S25 on an average day?
It swings with the seasons: from roughly −470 ft at the coldest month's average temperature to about 3,353 ft at the warmest month's — all from a constant field elevation of 2,135 ft. The month-by-month table above carries the full year.
What is the field elevation of Watford City Municipal?
2,135 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is S25 (FAA), in Watford City, North Dakota.