Redlands, California · field elev 1,574 ft
Density Altitude at Redlands Municipal (KREI)
Redlands Municipal sits at 1,574 ft, and even a typical August afternoon (96 °F) only lifts density altitude to about 4,275 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 | 53.8 | 1,620 ft | 66.6 | 2,449 ft |
| February | 54.8 | 1,685 ft | 67.4 | 2,500 ft |
| March | 57.7 | 1,875 ft | 70.9 | 2,722 ft |
| April | 61.7 | 2,135 ft | 75.6 | 3,017 ft |
| May | 66.4 | 2,436 ft | 80.3 | 3,310 ft |
| June | 72.4 | 2,817 ft | 88.5 | 3,812 ft |
| July | 78.9 | 3,223 ft | 95.4 | 4,227 ft |
| August | 79.6 | 3,266 ft | 96.2 | 4,275 ft |
| September | 76.0 | 3,042 ft | 92.3 | 4,041 ft |
| October | 67.9 | 2,532 ft | 82.9 | 3,470 ft |
| November | 60.1 | 2,031 ft | 75.0 | 2,980 ft |
| December | 53.3 | 1,587 ft | 66.5 | 2,443 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 KREI
DENSITY ALTITUDE
Field elevation 1,574 ft — the air behaves like 4,263 ft.
- PRESSURE ALT
- 1,575 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 California fields
- KSBD — San Bernardino International
San Bernardino · elev 1,159 ft
- KRIV — March Arb
Riverside · elev 1,536 ft
- KRIR — Flabob
Riverside/Rubidoux/ · elev 767 ft
- KRAL — Riverside
Riverside · elev 819 ft
- KBNG — Banning Municipal
Banning · elev 2,222 ft
- L35 — Big Bear City
Big Bear City · elev 6,752 ft
- L26 — Hesperia
Hesperia · elev 3,390 ft
- L65 — Perris Valley
Perris · elev 1,413 ft
Frequently asked questions
How high does density altitude get at KREI in summer?
On a typical August afternoon — around 96 °F at the nearest NOAA normals station — density altitude at Redlands Municipal reaches roughly 4,275 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 KREI on an average day?
It swings with the seasons: from roughly 1,587 ft at the coldest month's average temperature to about 3,266 ft at the warmest month's — all from a constant field elevation of 1,574 ft. The month-by-month table above carries the full year.
What is the field elevation of Redlands Municipal?
1,574 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KREI (ICAO) / REI (FAA), in Redlands, California.