Damaskus AP (609m)





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax123611401259122112531218
Tmin120911051231119112261192
Duration of sunshine62169124906290
Precipitation186171187181186180
Humidity/Visibility165155169164171164


ParameterJulAugSepOctNovDec
Tmax125812581237128712471262
Tmin123512351216125412181260
Duration of sunshine9331609312093
Precipitation188188212217209192
Humidity/Visibility168170185192189180


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.