Sioux Falls, SD
The timely rain in August should help keep most areas in KELOLAND growing when it comes to gardens. The "extra" moisture will make it harder for temperatures to fall too dramatically during the first half of the month. While we will have stronger cold fronts move through, getting temperatures to frost and/or freeze levels should be a little more difficult.
That's because the wet ground is harder to cool off than the dry ground. Think of it this way, dry ground not only heats up quicker but it also cools quicker than wet ground.
Some of you might remember the terribly dry conditions KELOLAND had during the summer of 2012. That September gave Sioux Falls a hard freeze on September 23, which is a couple weeks early.
The average first frost in much of KELOLAND is usually during the last week of September and I see no reason why it might be earlier. Besides, some of you heard the cicadas in mid-August. As the saying goes, six weeks after hearing cicadas, expect frost. That will put it at the end of September and I'm not about to argue the cicada theory.