My weather station currently consists of a Peet Bros. Ultimeter 2000 weather panel with internal barometer and external anemometer (wind speed) and thermometer.  The anemometer is mounted about 40 feet up on the antenna tower.  This gets it well above the affects of the house.  The temperature probe is housed in a home-made solar radiation shield.  This shield is a 'pagoda style' shield that provides several layers of shade but still allows the free flow of air to the sensor.  This system is very accurate

The software - Weather Outlook© - reads the serial data stream from the Ultimeter 2000 and provides data logging and a nice desktop display of current and historical data.  The software also uploads weather data to the Citizen Weather Observer Program (CWOP) every 5 minutes.  This network is part of the Amateur Radio APRS network. 

The data is available to anyone that wants to use it via the http://www.findu.com  servers.  My data is analyzed and compared to  data  from other nearby weather stations.  The data from certified CWOP weather stations is used by many agencies such as :

NWS Weather Forecast Offices Kennedy Space Flight Center
National Center for Environmental Prediction NASA Marshall Space Flight Center
National Ocean Service Embry-Riddle Aeronautical University

A much better and more thorough explanation is available at: http://www.wxqa.com/ 

Any comments or suggestions?  Please contact me via email at: