Air Quality (San Jose CA) climbs 18.18% over 24 hours — now 39.00 n

Air Quality (San Jose CA) is currently 39.00 n. Over 24 hours it has climbed 18.18%.

Change across timeframes:

• The past hour: ▲ 0.00% (39.00 n → 39.00 n) • 24 hours: ▲ 18.18% (33.00 n → 39.00 n)

In historical context: Air Quality (San Jose CA)'s record high is 52.00 n, set 2 days ago (Jun 18, 2026); its record low is 27.00 n, today (Jun 19, 2026). It sits 25.0% below its record high and 48% of the way up its all-time range.

This tracker updates automatically every hour. The chart above plots the full reading history.

Source: News Never Sleeps datacenter — aggregated from public real-time data feeds (metric health.aqiSJC). Figures computed from 18 stored readings since Jun 18, 2026. No LLM, no opinion — generated automatically from the numbers.