Monde

France

Paris-Orly (Aéroport)





Number of days available for climatic review

Paramètrejanfevmaravrmaijuin
Tmax125811431271122812601207
Tmin125911411271122812611203
Durée d’insolation000000
Précipitation837757840811837810
Humidité/Visibilité185168184178183178


Paramètrejuilletaoûtsepoctnovdéc
Tmax126112681252128712561300
Tmin126012721251129512581302
Durée d’insolation000000
Précipitation835841840866839868
Humidité/Visibilité180184207208206214


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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