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 Station:

Select Month:

Available Plot Types

Select Year:

Image Pixel Size @100 DPI

Image Resolution (DPI) (50 to 500)

Select Output Format:

Plot Description:

This chart is an attempted illustration of the amount of cloudiness that existed at a METAR site for a given month. The chart combines reports of cloud amount and level to provide a visual representation of the cloudiness. Once the METAR site hits a cloud level of overcast, it can no longer sense clouds above that level. So while the chart will indicate cloudiness up to the top, it may not have been like that in reality.

3 Generated Chart

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

CSV Data Excel Download

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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.

29 Jan 2024: Awaiting Sunshine
09 Jan 2023: Fog and Clear Skies?
15 Jul 2022: July Clouds and Visibilities
01 Mar 2021: February Clouds + Vis
30 Jan 2020: Recency Bias
30 Apr 2019: April Clouds + Visibility
21 May 2018: May Clouds
31 Jan 2017: January Clouds
29 Jun 2016: Plenty of June Sunshine
09 Apr 2015: April Clouds
11 Dec 2014: Clouds this December