Hydroclimatology
Precipitation Information Hydrometeorological Design Studies Center - HDSC Information Hydrometeorological Design Studies Center - Precipitation Return Periods Hydrometeorological Design Studies Center - Precipitation Frequency Data Server Hydrometeorological Design Studies Center - Precipitation Frequency Hydrometeorological Design Studies Center - Probable Maximum Precipitation Hydrometeorological Design Studies Center - Record Rainfalls
PRISM - (Parameter-elevation Regressions on Independent Slopes Model) Information Oregon Climate Services (OCS) - PRISM Home (Spatial Climate Analysis Service)
RFC Uses of Climate Information National Weather Service Hydrology Lab - CPC Ajustment Technique Documentation