Runway 31L at KRHV
Runway 31L/13R at Reid-Hillview Airport of Santa Clara County (KRHV) in San Jose is a 3,099 ft, unlit, asphalt runway oriented 323°/143°. The runway is 75 ft wide, with a 409 ft displaced threshold on the 31L end. SkyMeter has observed 1,349 landings and 1,542 departures on this runway over the last 30 days, with approximately 0.0% of arrivals resulting in a go-around. Trace data shows an average final-approach slope of 4.9°, touchdowns averaging 1,180 ft past the threshold, a typical touchdown ground speed of 64 kt, a 2.7 kt average crosswind component, a 3.8 kt average headwind.
Runway 31L/13R at Reid-Hillview Airport of Santa Clara County (KRHV) in San Jose is a 3,099 ft, unlit, asphalt runway oriented 323°/143°. The runway is 75 ft wide, with a 409 ft displaced threshold on the 31L end. SkyMeter has observed 1,349 landings and 1,542 departures on this runway over the last 30 days, with approximately 0.0% of arrivals resulting in a go-around. Trace data shows an average final-approach slope of 4.9°, touchdowns averaging 1,180 ft past the threshold, a typical touchdown ground speed of 64 kt, a 2.7 kt average crosswind component, a 3.8 kt average headwind.
Runway at a Glance
Arrival Volume
1,349 landings observed on Runway 31L in the last 30 days, alongside 1,542 departures.
Peak Hour
Busiest landing window observed at 17:00 with 11 arrivals on the recent sample.
Average Touchdown Zone
Aircraft touch down on average 1,180 ft from the threshold on Runway 31L.
Prevailing Wind & Gust History
Over the past 365 days, winds at KRHV have prevailed from the west-northwest (300°), accounting for roughly 38% of windy observations. Average wind speed sits at 5.2 kt with peak gusts to 34 kt. Strong-wind days are infrequent here.
Light Crosswind Component
Average crosswind on landing is 2.7 kt at touchdown, measured against runway 31L alignment.
Approach Slope
Final-approach slope averages 4.9° on Runway 31L, steeper than the standard 3°.
Landing Behavior and Touchdown Performance
The metrics below are computed from ADS-B trace data observed at Runway 31L over the last 30 days. Each value is shown only when at least 10 valid samples were available; sparse cells are hidden rather than estimated.
Hourly Landing Distribution
Recent observed landings on Runway 31L grouped by hour-of-day (UTC).
Approach Types and Categories
Aircraft approach runways using different procedures based on weather conditions, visibility, and available navigation equipment. An Instrument Landing System (ILS) approach provides precision horizontal and vertical guidance using ground-based radio signals, enabling aircraft to land in low visibility conditions. Visual approaches require pilots to maintain visual contact with the runway and surrounding terrain, typically used during clear weather. Area Navigation (RNAV) approaches use GPS technology to guide aircraft along specific flight paths.
Approach Categories Explained
Category (CAT) classifications define minimum visibility and decision height requirements for instrument approaches. Higher categories enable operations in lower visibility conditions.
Wind and Environmental Factors
Wind conditions directly impact runway operations, influencing approach difficulty, landing performance, and runway selection. Runway 31L benefits from favorable wind alignment, with prevailing winds creating minimal crosswind components for most operations. Average wind speeds of 12 knots pose no operational constraints for commercial aircraft.
24-Hour Wind Pattern
Wind patterns show typical diurnal variation with stronger winds during midday hours.