Heerhugowaard's average annual rainfall is , with measurable precipitation on an average of 189 days per year. Most is in the form of protracted drizzle or light rain, making cloudy and damp days common during the cooler months of October to March. Only the occasional European windstorm brings significant rain in a short period of time, requiring it to be pumped out to higher ground or to the seas around the city.
heerhugowaard's average annual rainfall is  with measurable precipitation on an average of 189 days per year most is in the form of protracted drizzle or light rain making cloudy and damp days common during the cooler months of october to march only the occasional european windstorm brings significant rain in a short period of time requiring it to be pumped out to higher ground or to the seas around the city