San Jose, California · field elev 135 ft
Density Altitude at Reid-Hillview Of Santa Clara County (KRHV)
Reid-Hillview Of Santa Clara County sits at 135 ft, and even a typical August afternoon (83 °F) only lifts density altitude to about 1,701 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 | 51.1 | −340 ft | 59.0 | 185 ft |
| February | 54.1 | −139 ft | 62.8 | 434 ft |
| March | 57.0 | 53 ft | 66.4 | 667 ft |
| April | 59.9 | 244 ft | 70.0 | 899 ft |
| May | 64.1 | 518 ft | 74.9 | 1,211 ft |
| June | 68.5 | 803 ft | 80.1 | 1,539 ft |
| July | 70.6 | 938 ft | 82.2 | 1,670 ft |
| August | 71.2 | 976 ft | 82.7 | 1,701 ft |
| September | 69.8 | 886 ft | 81.4 | 1,620 ft |
| October | 64.2 | 525 ft | 74.6 | 1,192 ft |
| November | 56.1 | −7 ft | 65.0 | 577 ft |
| December | 50.8 | −360 ft | 58.8 | 172 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 KRHV
DENSITY ALTITUDE
Field elevation 135 ft — the air behaves like 1,720 ft.
- PRESSURE ALT
- 136 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
- KSJC — Norman Y Mineta San Jose International
San Jose · elev 62 ft
- KPAO — Palo Alto
Palo Alto · elev 7 ft
- E16 — San Martin
San Martin · elev 284 ft
- KLVK — Livermore Municipal
Livermore · elev 400 ft
- KSQL — San Carlos
San Carlos · elev 6 ft
- KWVI — Watsonville Municipal
Watsonville · elev 163 ft
- KHWD — Hayward Exec
Hayward · elev 52 ft
- KTCY — Tracy Municipal
Tracy · elev 194 ft
Frequently asked questions
How high does density altitude get at KRHV in summer?
On a typical August afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Reid-Hillview Of Santa Clara County reaches roughly 1,701 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 KRHV on an average day?
It swings with the seasons: from roughly −360 ft at the coldest month's average temperature to about 976 ft at the warmest month's — all from a constant field elevation of 135 ft. The month-by-month table above carries the full year.
What is the field elevation of Reid-Hillview Of Santa Clara County?
135 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KRHV (ICAO) / RHV (FAA), in San Jose, California.