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Rena-Haugedalen (238m)





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax696883105110108
Tmin776480104110108
Duration of sunshine000000
Precipitation10093104118128118
Humidity/Visibility766583101110107


ParameterJulAugSepOctNovDec
Tmax105118111101115147
Tmin11411111498112148
Duration of sunshine000000
Precipitation120127118126142160
Humidity/Visibility108111112101110146


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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