Climate data needed for major capital cities of the world

Hello! We wish to obtain climate data of the major capital cities of the world so that we may have this accurate data to use in the sizing of our swimming pool and water heat pumps and chillers. You can use the list at this website for the cities we would like data on [login to view URL] We require the following information for each location: 1) Minimum and maximum temperatures (in celcius) - for each month of the year. 2) Min and max wet bulb temperature (in celcius) - for each month of the year. 3) Cloud cover (average between 9am and 3pm - Oktas) for each month of the year. 4) Wind direction data 5) Wind speed - average km/hr for the location 6) Longitude and latitude of each city 7) Horizontal global irradiation average - Megajoules/hour 8) Sun tracking beam irradiation average - Megajoules/hour For some information on our company see www.solarwise.com.au.