Storm Lake, Iowa · field elev 1,488 ft
Density Altitude at Storm Lake Municipal (KSLB)
Storm Lake Municipal sits at 1,488 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 3,328 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 | 17.3 | −1,001 ft | 25.8 | −395 ft |
| February | 21.7 | −685 ft | 30.2 | −86 ft |
| March | 34.2 | 192 ft | 43.4 | 820 ft |
| April | 47.5 | 1,096 ft | 58.1 | 1,795 ft |
| May | 59.3 | 1,873 ft | 69.1 | 2,503 ft |
| June | 69.7 | 2,541 ft | 79.2 | 3,136 ft |
| July | 73.0 | 2,749 ft | 82.3 | 3,328 ft |
| August | 70.6 | 2,598 ft | 79.9 | 3,180 ft |
| September | 63.3 | 2,132 ft | 74.1 | 2,818 ft |
| October | 50.1 | 1,269 ft | 60.6 | 1,958 ft |
| November | 35.5 | 281 ft | 44.3 | 881 ft |
| December | 23.2 | −579 ft | 31.1 | −23 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 KSLB
DENSITY ALTITUDE
Field elevation 1,488 ft — the air behaves like 3,310 ft.
- PRESSURE ALT
- 1,489 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 Iowa fields
- KCKP — Cherokee County Regional
Cherokee · elev 1,227 ft
- KSKI — Sac City Municipal
Sac City · elev 1,250 ft
- KIDG — Ida Grove Municipal
Ida Grove · elev 1,245 ft
- KPOH — Pocahontas Municipal
Pocahontas · elev 1,226 ft
- 1Y9 — Paullina Municipal
Paullina · elev 1,385 ft
- 2Y4 — Rockwell City Municipal
Rockwell City · elev 1,216 ft
- KSPW — Spencer Municipal
Spencer · elev 1,339 ft
- KMEY — James G Whiting Meml Field
Mapleton · elev 1,116 ft
Frequently asked questions
How high does density altitude get at KSLB in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Storm Lake Municipal reaches roughly 3,328 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 KSLB on an average day?
It swings with the seasons: from roughly −1,001 ft at the coldest month's average temperature to about 2,749 ft at the warmest month's — all from a constant field elevation of 1,488 ft. The month-by-month table above carries the full year.
What is the field elevation of Storm Lake Municipal?
1,488 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KSLB (ICAO) / SLB (FAA), in Storm Lake, Iowa.