Wolfram Computation Meets Knowledge

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

Gridded World Population Density

UN-adjusted gridded world population density for the years 2000, 2005, 2010, and 2015