Het KMI categoriseert het jaar 2018 als een “zeer abnormaal” jaar (KMI, 2019). In Ukkel werd 650.2 mm neerslag gemeten. Het gemiddelde tussen 1981 en 2010 bedraagt 852.4 mm (= 200 mm minder dan normaal).
De maandelijkse neerslag in 2018 is voor Ukkel uitzonderlijk laag in de maanden mei en juni en abnormaal laag in februari. De overige maanden benaderen de normale waarde.
Per HIC-meetstation/pluviograaf wordt de gevalideerde meetreeks in dit rapport cumulatief weergegeven. Naast de totale neerslag en het aantal neerslagdagen per maand wordt ook het jaartotaal voor 2018 en de vorige meetjaren weergegeven. De neerslag in de HIC-stations varieert van 554 mm (Zoutleeuw) tot 734 mm (Brugge). Vijf van de 19 HIC-stations registreren een hogere neerslag dan in Ukkel. De hoogste neerslagtotalen zijn terug te vinden in het Westen van Vlaanderen terwijl de laagste waarden meer centraal geregistreerd worden (Zoutleeuw).
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