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::

Plot Climate Districts or States:
Area to Plot:
Select Variable
Select aggregate to plot
Plotting Period
[Option 1] Select Year:
[Option 1] Month Limiter
[Option 2] Start Date
(YYYY/mm/dd)
[Option 2] End Date (inclusive)
(YYYY/mm/dd)
Color Ramp:
  Reverse Colormap?
Image Pixel Size @100 DPI
Image Resolution (DPI) (50 to 500)
Select Output Format:

Plot Description:

The map presents IEM computed climate district or statewide values for a metric of your choice. This map can be generated for a given month and year or period of dates. If the period of days includes leap day, this day is included and unweighted against years without it. If the period spans two years, the presented year on the map represents the second year in the selection. For plotting period Option 2, the time period is limited to 1 year or less.

The data uses the current NWS COOP nomenclature of reporting each day at approximately 7 AM. So for example, a plot of June precipitation would stricly include the period of 7 AM 31 May to 7 AM 30 June. Data for the current date is available at approximately noon central time each day.

Aridity Note: Presently, this autoplot can only plot the value and not departures nor ranks. Hopefully, this can be implemented in the near future.

Based on a sampling of recent timings for this application, plot generation time has averaged 29 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.