As I was updating my spreadsheet I realized that I did hit 28 on 10/17, so that goes down as my first hard freeze. The reason for the discrepancy is that I was out of town and looking at my Davis WeatherLink online which archives every 5 minutes but the console refreshes at a much smaller rate, every 2.5 seconds. I use the console for all of my records. So while I hit 28 for under five minutes that is the low temp that goes in the books.