Fog Frequency by WMO Station

Average annual and monthly number of days with fog for 22 nations

Thunder Frequency by WMO Station

Average annual and monthly number of days with thunder

Rain Frequency by WMO Station

Average annual and monthly number of days with rain for 28 nations

Snowfall Frequency by WMO Station

Average annual and monthly number of days with snowfall for 9 nations

Overcast Frequency by WMO Station

Average annual and monthly number of days without sunshine