While the heat is still in place over KELOLAND, there are signs starting to pop up that we are cooling down.
Monthly computer outlooks are showing temperatures cooling down. Global wind patterns are showing signs of the summer season weakening. You also may have noticed the changes in the evening sounds.
Yes, the familiar buzz of the cicadas is starting to be heard in Sioux Falls. According to weather folklore that means the first frost is only six weeks away – in late August to early September. For Sioux Falls, this is way earlier than the average first frost date of September 21.
Other areas of KELOLAND have their first average frost in mid to late September, but as early as September 11 in Lead or as late as the 27 like in Chamberlain.
One aspect that could make the cicada’s forecast incorrect is if we stay as wet as we’ve been. Extra moisture will make it harder for frost to form.
But no matter how you slice it, it’s only a matter of time before that cold, crisp air returns and we’ll all turn to Meteorologist Scot Mundt for his winter snow forecast.