Chetek, Wisconsin · field elev 1,056 ft
Density Altitude at Chetek Municipal/Southworth (Y23)
Chetek Municipal/Southworth sits at 1,056 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 2,745 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 | 11.6 | −1,960 ft | 21.6 | −1,235 ft |
| February | 16.0 | −1,638 ft | 27.2 | −836 ft |
| March | 28.9 | −717 ft | 39.6 | 25 ft |
| April | 43.0 | 257 ft | 54.3 | 1,013 ft |
| May | 56.2 | 1,138 ft | 67.8 | 1,890 ft |
| June | 66.0 | 1,774 ft | 77.3 | 2,490 ft |
| July | 70.1 | 2,036 ft | 81.4 | 2,745 ft |
| August | 67.9 | 1,896 ft | 79.5 | 2,627 ft |
| September | 59.6 | 1,360 ft | 71.4 | 2,119 ft |
| October | 46.1 | 466 ft | 56.8 | 1,177 ft |
| November | 31.7 | −521 ft | 40.4 | 80 ft |
| December | 18.5 | −1,457 ft | 27.1 | −844 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 Y23
DENSITY ALTITUDE
Field elevation 1,056 ft — the air behaves like 2,721 ft.
- PRESSURE ALT
- 1,057 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
- KRPD — Rice Lake Regional/Carl'S Field
Rice Lake · elev 1,109 ft
- 9Y7 — Barron Municipal
Barron · elev 1,110 ft
- KUBE — Cumberland Municipal
Cumberland · elev 1,243 ft
- 3T3 — Boyceville Municipal
Boyceville · elev 967 ft
- KLUM — Menomonie Municipal/Score Field
Menomonie · elev 895 ft
- KEAU — Chippewa Valley Regional
Eau Claire · elev 913 ft
- KSSQ — Shell Lake Municipal
Shell Lake · elev 1,233 ft
- KRCX — Rusk County
Ladysmith · elev 1,240 ft
Frequently asked questions
How high does density altitude get at Y23 in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Chetek Municipal/Southworth reaches roughly 2,745 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 Y23 on an average day?
It swings with the seasons: from roughly −1,960 ft at the coldest month's average temperature to about 2,036 ft at the warmest month's — all from a constant field elevation of 1,056 ft. The month-by-month table above carries the full year.
What is the field elevation of Chetek Municipal/Southworth?
1,056 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is Y23 (FAA), in Chetek, Wisconsin.