What UV rating should I use when calibrating my Weather Station?

Related articles

• Why isn't my timezone available when setting up my Weather Station?
• Why has my Main Weather Station Display lost connect to my Weather Vane?
• Why is my Wi-Fi Weather Station offline on Weather Underground after initial setup?
• How do I set up my Weather Station?
• Why can't I find my I find my Weather Station TYPE when registering my unit with Weather Underground?