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.
Second, select specific chart options::
Plot Description:
This chart plots the number of daily maximum high temperatures, minimum low temperatures and precipitation records set by year. Ties are not included. The algorithm sets the records based on the first year of data and then iterates over each sequential year and sets the new daily records. A general model of the number of new records to be set each year would be 365 / (number of years). So you would expect to set 365 records the first year, 183 the second, and so on...Based on a sampling of recent timings for this application, plot generation time has averaged 2 seconds. Hold on for the plot is generating now!

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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.
- 03 Oct 2023: Waterloo Daily Records
- 23 Nov 2021: Few New Records This Year
- 09 Apr 2020: Second Max High this Year
- 08 Aug 2018: Settings records by year
- 23 Feb 2017: 4 Straight Days of Records
- 27 Feb 2015: Records by Year
- 10 Sep 2010: Breaking records frequency