OSLO, June 1 (Xinhua) -- This May in Norway has been the warmest in the last 100 years, with average temperature of 4.2 degrees Celsius more than normal, newspaper Aftenposten reported Friday.

The record temperature of 32.7 degrees was recorded Thursday in western Norway, Meteorological Institute confirmed.

Several places in Norway recorded water temperature of more than 20 degrees, the report said.

According to Norwegian Minister of Climate and Environment Ola Elvestuen, there is a serious underlying cause for the hot May days in Norway, despite the enjoyable weather.

"Heat waves come here more and more often. If we can not say that this particular heat wave comes from global warming, there is no doubt that global warming now causes more dramatic weather changes for us," Elvestuen said.

He emphasized not only the government's responsibility, but also the one of Norwegian companies, in order to slow down the impact of global warming.

"Should we achieve the goals of the Paris agreement, companies must also take action. We need to promote zero-emission solutions faster and take an international leadership role in the climate work," Elvestuen said.

"Norway already has a central position in climate negotiations internationally, but we need to do more and work faster," he said.