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:
Frequency plot partitioned by hour and day or week of the year for a given METAR code to appear in the present weather. If your favorite METAR code is not available in the listing, please let us know! If multiple reports occurred within the same hour during one day/week, it would only count as one in this analysis.Based on a sampling of recent timings for this application, plot generation time has averaged 6 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.
- 19 Jun 2024: June Peak of Thunder
- 13 Apr 2022: Thunder Season Just Starting
- 05 Jun 2020: Peak Thunder Season
- 07 Feb 2020: Light Snow Report Frequency
- 22 May 2018: Best Time for Fog
- 17 Aug 2016: Fog Frequency
- 16 Jul 2015: Thunder by Hour
- 19 Apr 2012: Thunder Climatology