Pleasanton, Kansas · field elev 860 ft
Density Altitude at Linn County (1KS)
Linn County sits at 860 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 2,943 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 | 30.5 | −850 ft | 40.8 | −137 ft |
| February | 34.7 | −557 ft | 45.5 | 183 ft |
| March | 44.9 | 142 ft | 56.3 | 902 ft |
| April | 54.5 | 784 ft | 65.8 | 1,521 ft |
| May | 64.0 | 1,405 ft | 74.4 | 2,068 ft |
| June | 74.0 | 2,043 ft | 83.9 | 2,661 ft |
| July | 78.6 | 2,332 ft | 88.5 | 2,943 ft |
| August | 76.8 | 2,219 ft | 87.2 | 2,864 ft |
| September | 67.9 | 1,655 ft | 79.4 | 2,382 ft |
| October | 56.6 | 922 ft | 68.5 | 1,694 ft |
| November | 44.2 | 95 ft | 54.9 | 810 ft |
| December | 34.1 | −598 ft | 44.0 | 81 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 1KS
DENSITY ALTITUDE
Field elevation 860 ft — the air behaves like 2,974 ft.
- PRESSURE ALT
- 861 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 Kansas fields
- KFSK — Fort Scott Municipal
Fort Scott · elev 918 ft
- K81 — Miami County
Paola · elev 943 ft
- K68 — Garnett Municipal
Garnett · elev 989 ft
- KOWI — Ottawa Municipal
Ottawa · elev 966 ft
- K88 — Allen County
Iola · elev 1,016 ft
- 63K — Hillside
Stilwell · elev 1,025 ft
- K34 — Gardner Municipal
Gardner · elev 1,040 ft
- KOJC — Johnson County Exec
Olathe · elev 1,096 ft
Frequently asked questions
How high does density altitude get at 1KS in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Linn County reaches roughly 2,943 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 1KS on an average day?
It swings with the seasons: from roughly −850 ft at the coldest month's average temperature to about 2,332 ft at the warmest month's — all from a constant field elevation of 860 ft. The month-by-month table above carries the full year.
What is the field elevation of Linn County?
860 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 1KS (FAA), in Pleasanton, Kansas.