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:

2 Configure Chart Options

Select Variable to Plot

Direction of Percentile

Daily Variable Level (inch or degrees F):

Select Station (STC000? are climate district, ST0000 state avg)

Image Pixel Size @100 DPI

Image Resolution (DPI) (50 to 500)

Select Output Format:

Plot Description:

This chart plots the monthly percentiles that a given daily value has. For example, where would a daily 2 inch precipitation rank for each month of the year. Having a two inch event in December would certainly rank higher than one in May. Percentiles for precipitation are computed with dry days omitted.

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.

20 Feb 2024: Monthly Frequency of 50+
24 Feb 2022: Highs below 10
24 Jun 2020: Low below 60
14 Dec 2018: 50 Degree Percentiles
17 May 2017: Reaching 90+ in May
14 Jan 2016: Reaching 50
19 Nov 2015: 2 inches in November