Eureka, Montana · field elev 2,672 ft
Density Altitude at Eureka (88M)
From a field elevation of 2,672 ft, a typical July afternoon at Eureka (87 °F) raises density altitude to about 5,025 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 25.8 | 1,085 ft | 32.3 | 1,536 ft |
| February | 29.8 | 1,363 ft | 38.6 | 1,965 ft |
| March | 38.3 | 1,945 ft | 49.2 | 2,673 ft |
| April | 46.8 | 2,514 ft | 59.5 | 3,343 ft |
| May | 55.9 | 3,111 ft | 69.9 | 4,004 ft |
| June | 62.5 | 3,535 ft | 76.6 | 4,421 ft |
| July | 69.6 | 3,985 ft | 86.5 | 5,025 ft ▲ |
| August | 68.6 | 3,922 ft | 86.0 | 4,995 ft |
| September | 59.4 | 3,337 ft | 74.8 | 4,309 ft |
| October | 46.3 | 2,481 ft | 57.4 | 3,208 ft |
| November | 34.4 | 1,680 ft | 41.4 | 2,154 ft |
| December | 26.1 | 1,106 ft | 31.4 | 1,474 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 88M
DENSITY ALTITUDE caution
Field elevation 2,672 ft — the air behaves like 5,055 ft.
- PRESSURE ALT
- 2,674 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- 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 Montana fields
- 57S — Troy
Troy · elev 2,017 ft
- S59 — Libby
Libby · elev 2,605 ft
- 58S — Whitefish
Whitefish · elev 3,066 ft
- KGPI — Glacier Park International
Kalispell · elev 2,977 ft
- S27 — Kalispell City
Kalispell · elev 2,932 ft
- 53U — Ferndale Airfield
Bigfork · elev 3,072 ft
- 8S0 — Starr-Browning Airstrip
Browning · elev 4,657 ft
- S09 — Hot Springs
Hot Springs · elev 2,763 ft
Frequently asked questions
How high does density altitude get at 88M in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Eureka reaches roughly 5,025 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 88M on an average day?
It swings with the seasons: from roughly 1,085 ft at the coldest month's average temperature to about 3,985 ft at the warmest month's — all from a constant field elevation of 2,672 ft. The month-by-month table above carries the full year.
What is the field elevation of Eureka?
2,672 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 88M (FAA), in Eureka, Montana.