springnumeric vector on counts for different level of precipitation
summernumeric vector on counts for different level of precipitation
autumnnumeric vector on counts for different level of precipitation
winternumeric vector on counts for different level of precipitation
References
Romero R, Guijarro J A, Ramis C, Alonso S (1998). A 30-years (196493) daily rainfall
data base for the Spanish Mediterranean regions: first exploratory study.
International Journal of Climatology 18, 541560.