- Water Year 2020 (WY 2020) included some precipitation in the late winter but was much drier than average in the spring, summer and early fall.
- July and August were the driest by far with precipitation measuring 26% and 15% respectively based on the monthly averages of the same 12-year period.
- Precipitation patterns are a factor in CCR’s water quality.
Precipitation measured at the KAPA site was much lower than average during the 2020 Water Year. The historical data from the National Ocean and Atmospheric Administration (NOAA) at the Centennial Airport Station (KAPA), received 51% of the historical average% from 2006-2020.
However, the watershed as a whole appears to have received 10-32% average precipitation, based on the 30 year (1981-2010) PRISM average precipitation data generated by NOAA/National Weather Service.