Monde

Europe

Veðurstofa Íslands





Number of days available for climatic review

Paramètrejanfevmaravrmaijuin
Tmax124811501271122812661230
Tmin10649831085105010811050
Durée d’insolation217254248240248300
Précipitation186169187180185180
Humidité/Visibilité184166184178184179


Paramètrejuilletaoûtsepoctnovdéc
Tmax126912681258129512571300
Tmin108610851050108510501085
Durée d’insolation279310300310270248
Précipitation185185209211207216
Humidité/Visibilité183185206210207214


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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