---
description: Average number of days of precipitation in month
---

# pcp\_days

This parameter is calculated as

$$
d_{wet,i}=\frac{days_{wet,i}}{yrs}
$$

where $$d_{wet,i}$$ is the average number of days of precipitation in month $$i$$, $$days_{wet,i}$$ is the number of wet days in month $$i$$ during the entire period of record, and $$yrs$$ is the number of years of record.
