The CRU CY version 3.23 dataset consists of country averages at a monthly, seasonal and annual frequency, for ten climate variables, including cloud cover, diurnal temperature range, frost day frequency, precipitation, daily mean temperature, monthly average daily maximum and minimum temperature, vapour pressure and Potential Evapo-transpiration.
This dataset was produced in 2015 by the Climatic Research Unit (CRU) at the University of East Anglia.
Spatial averages are calculated using area-weighted means. CRU CY3.23 is derived directly from the CRU TS3.23 dataset. CRU CY version 3.23 spans the period 1901-2014 for 289 countries.
To understand the CRU-CY3.23 dataset, it is important to understand the construction and limitations of the underlying dataset, CRU TS3.23. It is therefore recommended that all users read the paper referenced below (Harris et al, 2014).
CRU CY data are available for download to all CEDA users.