| More about Mathematica ยป | 
Mathematica 7 provides for the first time immediate access to fully computable current and historical weather data. Using a broad compilation of weather data maintained at Wolfram Research from more than 17,000 weather stations worldwide, Mathematica 7 provides both real-time weather information, and up to 100 years of historical weather data, suitable for detailed historical and trend analysis. 
- Real-time weather information from all available weather stations. »
 - Coverage of professional, amateur and historical weather stations worldwide.
 - When available, provides data for every hour or for fractional hours.
 - Average data length of 36 years for major weather stations; some data from more than 100 years ago.
 - Data accessible by station name, city or geographic coordinates. »
 - Data on temperature, pressure, wind speed, cloud cover, precipitation, visibility, etc.
 - Fully computable weather condition information.
 


