Crescent Lake, Oregon · field elev 4,820 ft
Density Altitude at Crescent Lake State (5S2)
From a field elevation of 4,820 ft, a typical August afternoon at Crescent Lake State (74 °F) raises density altitude to about 6,891 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 27.8 | 3,900 ft | 35.2 | 4,400 ft |
| February | 29.1 | 3,989 ft | 37.6 | 4,560 ft |
| March | 32.7 | 4,232 ft | 41.8 | 4,838 ft |
| April | 37.0 | 4,520 ft | 46.3 | 5,133 ft ▲ |
| May | 44.7 | 5,029 ft | 55.5 | 5,726 ft ▲ |
| June | 50.6 | 5,412 ft | 62.8 | 6,187 ft ▲ |
| July | 58.6 | 5,922 ft | 73.0 | 6,818 ft ▲ |
| August | 58.2 | 5,897 ft | 74.2 | 6,891 ft ▲ |
| September | 52.0 | 5,502 ft | 67.9 | 6,504 ft ▲ |
| October | 42.7 | 4,898 ft | 55.0 | 5,694 ft ▲ |
| November | 33.2 | 4,266 ft | 40.9 | 4,779 ft |
| December | 26.9 | 3,839 ft | 34.1 | 4,326 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 5S2
DENSITY ALTITUDE caution
Field elevation 4,820 ft — the air behaves like 6,879 ft.
- PRESSURE ALT
- 4,822 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 Oregon fields
- 2S2 — Beaver Marsh
Beaver Marsh · elev 4,638 ft
- 5S0 — Oakridge State
Oakridge · elev 1,393 ft
- 3S6 — Toketee State
Clearwater · elev 3,361 ft
- S21 — Sunriver
Sunriver · elev 4,164 ft
- 00S — Mc Kenzie Bridge State
Mc Kenzie Bridge · elev 1,620 ft
- 45S — Silver Lake F S Strip
Silver Lake · elev 4,492 ft
- KBDN — Bend Municipal
Bend · elev 3,459 ft
- 6K5 — Sisters Eagle Air
Sisters · elev 3,168 ft
Frequently asked questions
How high does density altitude get at 5S2 in summer?
On a typical August afternoon — around 74 °F at the nearest NOAA normals station — density altitude at Crescent Lake State reaches roughly 6,891 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 5S2 on an average day?
It swings with the seasons: from roughly 3,839 ft at the coldest month's average temperature to about 5,922 ft at the warmest month's — all from a constant field elevation of 4,820 ft. The month-by-month table above carries the full year.
What is the field elevation of Crescent Lake State?
4,820 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 5S2 (FAA), in Crescent Lake, Oregon.