The National Weather Service in Grand Rapids has discontinued the use of the growing season headlines for 2010 as of October 25th across all of southwest and west central lower Michigan.
While the growing season came to an end for a few counties in southwest lower Michigan at the beginning of October, the remainder of southwest and west central lower Michigan has yet to see a killing freeze. However, many of these remaining counties have experienced temperatures in the lower 30s. The combination of these colder temperatures and the climatological dates for freezes and killing freezes suggest the growing season has ended. The average first freeze in west central and southwest lower Michigan generally occurs within the last week of September and the first couple of weeks of October.
The end of the growing season means that frost advisories and freeze watches and warning will be discontinued for the remainder of 2010. The headlines will be reinstated at the beginning of the 2011 growing season.