The unit of pressure used for showing weather. Valid values are 'kpa' (kilopascal), 'hpa' (hectopascal), 'mb' (millibar, mathematically equivalent to 1 hPa but shown differently), 'mm-hg' (millimiters of mercury), 'inch-hg' (inches of mercury), 'atm' (atmospheres).
Eguraldia erakustean erabiliko den presioaren unitatea. Balio erabilgarriak: 'kpa' (kilopascal), 'hpa' (hektopascal), 'mb' (milibarra, matematikoki 1 hPa-ren baliokidea baina modu desberdinean erakutsita), 'mm-hg' (milimetro merkurio), 'inch-hg' (hazbete merkurio), 'atm' (atmosfera).