New highest minimum for September comes fairly late in Jyväskylä

So just after I mentioned in my previous post that the minimums for Jyväskylä were at their lowest on average for the past 5 years, there were minimum recordings of 11.9C and 12.5C for September 18 and 19. This was still a little unusual if we look at how late in to September we actually are for such high minimums.

September minimums at Jyväskylä Airport for years 2009-2013

From the graph it's clear that the high minimums of the past few days are a little unusual. Of course this is only comparing the previous 5 years so the sample size is quite small, but an observation nevertheless.

The forecast predicts another couple of 'warm' nights before dropping later in the week. There have been no signs of temperatures dropping below zero just yet though. Only in the far northern provinces of Utsjoki and Inari were minimums below 5C recorded in the last couple of days. Again looking at the graph above, the latest date for the first sub-zero recording in the last 4 years was September 25. It looks like we're on track to push that date back for 2013.