Automated Data Plotter

This application dynamically generates many types of graphs. These graphs are derived from processing of various data sources done by the IEM. Please feel free to use these generated graphics in whatever way you wish. Reset App. The IEM Explorer application offers a simplified frontend to some of these autoplots.


First, select a chart type::


Second, select specific chart options::

Month Limiter
Start Date of Inclusive Period (optional)
End Date of Inclusive Period (optional)
Select Map Region
Select Climatology Source to Use (limits available variables)
Select State to Plot (when appropriate)
Map Plot/Contour View Option
Which Variable to Plot
Color Ramp:
  Reverse Colormap?
Image Pixel Size @100 DPI
Image Resolution (DPI) (max 500)
Select Output Format:

Plot Description:

This application produces map analysis of climatological averages. The IEM maintains a number of different climatologies based on period of record and source. If you pick the NCEI Climatology, only basic temperature and precipitation variables are available at this time.

If you select a period of dates with the end date prior to the start date, the logic then has the period cross the 1 January boundary. For example, a period between Dec 15 and Jan 15 will be computed.


Based on a sampling of recent timings for this application, plot generation time has averaged 5 seconds. Hold on for the plot is generating now!


View Data (as csv)   Download as Excel  
If you notice plotting issues with the image above, please do let us know by providing the URL address currently shown by your web browser.

IEM Daily Features using this plot

The IEM Daily Features found on this website often utilize plots found on this application. Here is a listing of features referencing this plot type.