World

Europe

Pamplona (453m)





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax127109142139150143
Tmin137128139139149145
Duration of sunshine878280818596
Precipitation153139154153157149
Humidity/Visibility10390105105112108


ParameterJulAugSepOctNovDec
Tmax147163162158161133
Tmin145167171152150142
Duration of sunshine89911099991106
Precipitation160185179180176162
Humidity/Visibility112125127120118106


Climate data is usually derived from meteorological data of a certain number of years. The actual number of recorded years may vary from only a couple to 50 years or more. The quality of climate data depends on the number of available recorded years. Fewer years means less reliable data. The standart-period for reliable climate data is 30 years. For example, the mean monthly temperature for, let's say January, would ideally calculated from a total number of 930 recorded January-days. However, the usual number of recorded days is much smaller. The table above shows the actual number of recorded days for every parameter measured.