Measured temperature, one reading per hour, for each sensor.
Daily peak visitor count. Sundays marked in red.
Internet sensor, one reading per hour. Shows real daily cycles and seasonal variation.
Actual readings every ~10 minutes per sensor, no averaging.
Actual visitor count readings every 10 minutes.
Daily average per city · ▲ high · ▼ low · Ø average. The high and low days are marked on each graph.
Every city on one chart. Daily average temperature.