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.

First, select a chart type::

Second, select specific chart options::

Select Station:
Month Limiter
Threshold Direction:
Which variable
Temperature (F) Threshold:
Minimum Period to Plot (Hours):
Image Resolution (DPI)
Select Output Format

Plot Description:

Based on hourly METAR reports of temperature or dew point, this plot displays the longest periods above or below a given temperature threshold. There are plenty of caveats to this plot, including missing data periods that are ignored and data during the 1960s that only has reports every three hours. This plot also limits the number of lines drawn to 10, so if you hit the limit, please change the thresholds.

Based on a sampling of recent timings for this application, plot generation time has averaged 16 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.