> For the complete documentation index, see [llms.txt](https://swatplus.gitbook.io/io-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://swatplus.gitbook.io/io-docs/introduction-1/climate/weather-wgn.cli/yrs_pcp.md).

# yrs\_pcp

This variable is used to calculate values for [pcp\_hhr](/io-docs/introduction-1/climate/weather-wgn.cli/pcp_hhr.md). 

{% hint style="info" %}
If no value is specified, the model will set *yrs\_pcp* = 10.
{% endhint %}