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::

Select Station:
Select which daily variable
Select direction
Threshold (F or inch):
Number of Days:
Image Pixel Size @100 DPI
Image Resolution (DPI) (50 to 500)
Select Output Format:

Plot Description:

This chart presents the daily frequency of the given date having the prescribed number of previous days above or below some provided treshold. Autoplot 216 provides actual streaks and yearly maximum values.

The accumulated precipitation metric is for an inclusive number of trailing days evaluated at that given day, so there is not double accounting for days that participate in a trailing day period that ended in the future. Rewording, an example frequency of 25% of May 1 would indicate that on that date, it had an inclusive trailing number of days accumulation above or below the choosen threshold.

2 Oct 2023: The plotting logic was updated to plot the frequency of a given day participating in a streak, rather than the frequency of a streak ending on that day. This should be a more useful metric for the user.

Based on a sampling of recent timings for this application, plot generation time has averaged 3 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.