Although the month of September is going to end on a cool note in the Wisconsin River Valley, it will go down this year as only the second month with temperatures that were above average. Unlike February which was a mere 0.1 degrees above the normal range, this month should go down around 3 degrees higher than usual. The main reason for this was the extended streak of dry and sunny weather which lead to numerous days with highs in the 70s and even some 80s. Hard to believe considering the last day of August featured some frost in the Northwoods.
Speaking of frost, we may try to mirror the end of August for the final day of September, with frost or perhaps even freeze conditions expected in portions of the Northwoods. The rationale for this is going to be the same as a month ago, a chilly air mass dropping in out of Canada, in the form of high pressure. This leads to a relatively clear sky, light winds and thus good radiational cooling. Some folks may be ready to throw in the towel for the growing season, considering we are now approaching the time frame when the first frost is anticipated to hit. Of course the farther north in the state you reside, the sooner a return to having to pull out the ice scrapper in the morning becomes necessary. Here is the map of the average frost frost in the fall statewide:
So if you still have the plants outside, be sure to get that harvesting done before we are too far along into October. On the flip side, if you are a fan of checking out the fall colors, the trees are going to certainly paint the landscape with plenty of yellow, orange and red right through the middle of October. Be sure to take along the camera and if you really want to enjoy the view, head out to Granite Peak on the weekend to ride the ski lift up and back while taking in what will surely be a breath taking view.
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