Horton, Kansas · field elev 1,134 ft
Density Altitude at Horton Municipal (K91)
Horton Municipal sits at 1,134 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 3,270 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 | 26.3 | −802 ft | 36.9 | −63 ft |
| February | 31.1 | −465 ft | 42.6 | 326 ft |
| March | 41.9 | 279 ft | 54.0 | 1,089 ft |
| April | 52.8 | 1,010 ft | 64.4 | 1,767 ft |
| May | 64.2 | 1,754 ft | 75.1 | 2,448 ft |
| June | 73.8 | 2,366 ft | 84.1 | 3,007 ft |
| July | 78.1 | 2,636 ft | 88.4 | 3,270 ft |
| August | 75.8 | 2,492 ft | 86.8 | 3,173 ft |
| September | 67.6 | 1,973 ft | 79.5 | 2,723 ft |
| October | 54.6 | 1,129 ft | 67.3 | 1,953 ft |
| November | 41.3 | 238 ft | 52.6 | 997 ft |
| December | 30.6 | −500 ft | 40.7 | 197 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 K91
DENSITY ALTITUDE
Field elevation 1,134 ft — the air behaves like 3,246 ft.
- PRESSURE ALT
- 1,135 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
- K87 — Hiawatha Municipal
Hiawatha · elev 1,130 ft
- K59 — Amelia Earhart
Atchison · elev 1,073 ft
- K83 — Sabetha Municipal
Sabetha · elev 1,328 ft
- 62K — Seneca Municipal
Seneca · elev 1,291 ft
- 52K — Charles E Grutzmacher Municipal
Onaga · elev 1,183 ft
- KFLV — Sherman Aaf
Fort Leavenworth · elev 771 ft
- KTOP — Philip Billard Municipal
Topeka · elev 881 ft
- KLWC — Lawrence Regional
Lawrence · elev 833 ft
Frequently asked questions
How high does density altitude get at K91 in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Horton Municipal reaches roughly 3,270 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 K91 on an average day?
It swings with the seasons: from roughly −802 ft at the coldest month's average temperature to about 2,636 ft at the warmest month's — all from a constant field elevation of 1,134 ft. The month-by-month table above carries the full year.
What is the field elevation of Horton Municipal?
1,134 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is K91 (FAA), in Horton, Kansas.