INT.05 · City index / US
Phoenix wash index
Heat is the hazard: midday panels flash-dry water into mineral spots within seconds. Wash at dawn, and watch the July–September monsoon — dust storms can undo a wash in an hour.
HEAT /// WASH AT DAWNMONSOON /// JUL-SEP DUSTRAIN /// OTHERWISE RARE
01
The readout
Live · scored 0–100
02
Wash windows
Best 2-hour slots · daylight-aware
03
Next 48 hours
Hour · index · rain % · temp
Wash · 70+
Borderline · 45–69
Wait · under 45
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