Shell Lake, Wisconsin · field elev 1,233 ft
Density Altitude at Shell Lake Municipal (KSSQ)
Shell Lake Municipal sits at 1,233 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 2,881 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 | 10.8 | −1,795 ft | 20.7 | −1,077 ft |
| February | 15.4 | −1,459 ft | 26.4 | −671 ft |
| March | 28.6 | −517 ft | 39.5 | 238 ft |
| April | 42.4 | 436 ft | 53.7 | 1,192 ft |
| May | 55.2 | 1,291 ft | 66.7 | 2,037 ft |
| June | 64.9 | 1,921 ft | 76.1 | 2,632 ft |
| July | 69.0 | 2,183 ft | 80.1 | 2,881 ft |
| August | 67.1 | 2,062 ft | 78.3 | 2,769 ft |
| September | 58.8 | 1,526 ft | 69.6 | 2,222 ft |
| October | 45.8 | 665 ft | 55.6 | 1,317 ft |
| November | 30.9 | −356 ft | 39.0 | 204 ft |
| December | 17.5 | −1,307 ft | 25.7 | −721 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 KSSQ
DENSITY ALTITUDE
Field elevation 1,233 ft — the air behaves like 2,875 ft.
- PRESSURE ALT
- 1,234 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 Wisconsin fields
- 1H9 — Nest Of Eagles
Spooner · elev 1,115 ft
- KUBE — Cumberland Municipal
Cumberland · elev 1,243 ft
- KRPD — Rice Lake Regional/Carl'S Field
Rice Lake · elev 1,109 ft
- 9Y7 — Barron Municipal
Barron · elev 1,110 ft
- KRZN — Burnett County
Siren · elev 989 ft
- KHYR — Sawyer County
Hayward · elev 1,216 ft
- Y23 — Chetek Municipal/Southworth
Chetek · elev 1,056 ft
- KGTG — Grantsburg Municipal
Grantsburg · elev 927 ft
Frequently asked questions
How high does density altitude get at KSSQ in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Shell Lake Municipal reaches roughly 2,881 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 KSSQ on an average day?
It swings with the seasons: from roughly −1,795 ft at the coldest month's average temperature to about 2,183 ft at the warmest month's — all from a constant field elevation of 1,233 ft. The month-by-month table above carries the full year.
What is the field elevation of Shell Lake Municipal?
1,233 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KSSQ (ICAO) / SSQ (FAA), in Shell Lake, Wisconsin.