Herstmonceux





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax182165185179184180
Tmin184166186177185178
Duration of sunshine292531293129
Precipitation188168186183186180
Humidity/Visibility183166185179184179


ParameterJulAugSepOctNovDec
Tmax184183207209204216
Tmin184186208210204215
Duration of sunshine312948625660
Precipitation186192214215216223
Humidity/Visibility184183206210205213


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.