The data are here.
A dataset of mean monthly surface climate over global land areas, excluding Antarctica. Interpolated from station data to 0.5 degree lat/lon for a range of variables: precipitation and wet-day frequency, mean temperature and diurnal temperature range (from which maximum temperature and minimum temperature can be determined), vapour pressure, sunshine, cloud cover, ground-frost frequency and windspeed.
For further Details regarding the CRU Climatologies please go to the Data Description Pages - Climate Baselines - CRU Climatologies.
This is available free of charge and without restriction from the IPCC Data Distribution Centre (http://ipcc-ddc.cru.uea.ac.uk), see CRU05 documentation which is where this documentation is copied from. Note that other datasets from the IPCC DDC are restricted.