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North America

Abraham Lincoln Capital Airport (187m)





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax352031813516341335093401
Tmin352531863528341435143410
Duration of sunshine62576260124150
Precipitation155141156151155150
Humidity/Visibility153138153148153146


ParameterJulAugSepOctNovDec
Tmax351635123402355434443567
Tmin352635213418355534453572
Duration of sunshine1551241201249062
Precipitation157157152184180186
Humidity/Visibility150149148176175184


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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