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 Start Date (inclusive)

(YYYY/mm/dd)

Select End Date (inclusive)

(YYYY/mm/dd)

Which Metric to Plot

Image Pixel Size @100 DPI

Image Resolution (DPI) (50 to 500)

Select Output Format:

Plot Description:

This chart presents a simple accounting of the percentage of first order NWS climate sites that are either above or below average or reporting precipitation / snow each day. Note that no spatial weighting is done, so one should not interpret this as an areal coverage of some condition. For temperature, sites with an average temperature for that date are omitted.

3 Generated Chart

Based on recent timings, plot generation averages 2 seconds. Please wait while your chart is being generated...

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.

03 Nov 2023: Blues vs Reds
02 Dec 2021: 90% of Sites
15 Oct 2020: Warm Weather Dominating
16 Jul 2020: Warmth Dominating this Summer
02 Apr 2020: More Reds this Year
20 Jun 2018: CONUS Above Average
25 Oct 2017: More Cold Air
02 Nov 2016: Reds and Blues