It's a clear increase on the year before and the Swedish Transport Association says it will be taking action to avoid a repeat in 2019.
"Of course, we are not happy with the figures. They are far from our goal of 95 percent punctuality by 2020," says Roberto Maiorana, head of traffic management at the Swedish Transport Administration.
He tells Swedish Radio that heavy snow last winter and the summer's extreme heat were major reasons behind the record number of train delays.
Disappointed train commuter: "I just want an on-time service"5:50 min 5:50 min
Severe train delays between Stockholm and Gothenburg1:11 min 1:11 min
Government agrees on high speed trains - but how fast will they be?2:27 min 2:27 min