Automated Data Plotter

This application dynamically generates many types of graphs derived from various IEM data sources. Feel free to use these generated graphics in whatever way you wish.

Reset App IEM Explorer (Simplified)

1 Select a Chart Type

Choose from available chart types:

State Areal Coverage of Precip Intensity over X Days (#4)

2 Configure Chart Options

Select Year

Precipitation Threshold [inch]

Over Period of Days

For Contiguous US State Only:

Image Pixel Size @100 DPI

Image Resolution (DPI) (50 to 500)

Select Output Format:

Plot Description:

Using the gridded IEM ReAnalysis of daily precipitation. This chart presents the areal coverage of some trailing number of days precipitation for a state of your choice. This application does not properly account for the trailing period of precipitation during the first few days of January. This application only works for contiguous states.

3 Generated Chart

CSV Data Excel Download

If you notice plotting issues with the image above, please contact us and provide 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.

18 Jun 2025: Half Inch Coverage
19 Apr 2023: An Inch over 14 Days
26 Apr 2021: Inch Coverage
20 May 2019: Half Inch over Seven Days
11 Jul 2017: 3 inches over 30 days
18 Jul 2016: Inch over Seven Days
07 Apr 2015: Few widespread rain events
06 Aug 2014: An inch in seven days