This is intended as a tool for educational or research purposes, and enables you to generate graphs showing changes in average temperatures over time, using data from the Global Historical Climatology Network.

• How to install the software
• Plotting by country
• Viewing weather stations using Google Earth
• Plotting by weather station
• Plotting by geographical area
• Plotting the number of active weather stations
• Plotting the distance of weather stations from the equator
• Plotting within a latitude range
• Some interesting examples