Locational Information gives the latitude, longitude, and elevation for each city, plus information about temperatures and precipitation.

The Daily Mean Maximum Temperature and Daily Mean Minimum Temperature graphs each contain three plots. The black lines show the average (mean) high or low temperature for each date. The red lines show the highest recorded temperatures for each day of the year and the blue lines show lowest recorded temperatures.

On the Daily Mean Precipitation and Snowfall graph, the blue line indicates the average daily amount of precipitation (rain and snow combined), in hundredths of an inch. The red line shows the average amount of snowfall, in tenths of an inch. Melting 1 inch of snow produces about 0.1 inch of water, so the precipitation and snowfall plots are usually very nearly the same height.

For additional information about these plots, click here .