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Tiree Island





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax773699773747771749
Tmin775700773748772747
Duration of sunshine248282279270310300
Precipitation155141155152155150
Humidity/Visibility153139153148153148


ParameterJulAugSepOctNovDec
Tmax771771750768748774
Tmin773773748767747773
Duration of sunshine310310300310240279
Precipitation155157152152150155
Humidity/Visibility153152148148148152


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.

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