September offered records in heat as well as rain and snow. In some places, the month was warmer than both July and August – for the first time since SMHI’s measurements started
– September has been a record month in many places, with several records being touched. And some of the measuring stations go back to the 19th century, says Anders Wettergren, meteorologist at SMHI.
Perhaps September stands out the most for having been unusually warm. High summer heat was measured on eight of the days of the month – i.e. a maximum daily temperature that reaches at least 25 degrees. In Halmstad and Ullared, for example, September was warmer than both July and August – something that has never happened since SMHI’s measurements started.
But September also got off to an unusually wet start. In Uppland, Västmanland and eastern Dalarna, 24-hour rainfall was measured at several stations, which was far above what you normally get in the whole month of September.
On September 1, Älvkarleby in Uppland received 101 millimeters of rain – twice as much as what normally falls there during the whole month.
Besides, it was snowing. On September 20 – eleven days after Älvsbyn measured Norrland’s highest known September temperature of 26.4 degrees – Kiruna woke up to the greatest snow depth for September in all of Sweden since 2003. 38 centimeters of snow had fallen, but disappeared relatively quickly.
– It was a temporary fluctuation of a few days, when there was a very big difference between north and south, says Anders Wettergren.
So after a September that swung between different record weather, what can we expect from October?
– We are a bit ahead right from the start, but that doesn’t have to mean anything for October at all. It may very well become completely normal.