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Public Information Statement National Weather Service Wilmington OH 1000 AM EDT Tue Oct 31 2023 ...THE FROST AND FREEZE PROGRAM HAS ENDED FOR THE 2023 SEASON... The National Weather Service in Wilmington Ohio has discontinued the frost and freeze program for 2023. Temperatures this morning dropped below freezing for much of the region, ending the growing season. Temperatures below freezing are also expected during the morning hours of November 1 and November 2. This will be the last statement that will be issued this fall regarding frost and freeze concerns in our forecast area. The frost and freeze program will resume at the start of the growing season next spring. $$ HATZOS --- ...FALL FREEZE CLIMATOLOGY... When does the first freeze of the fall season normally occur? A temperature of 32 degrees fahrenheit has officially been recorded as early as September 28th at Cincinnati, and September 21st in Columbus and Dayton. The first occurrence of 32 degrees fahrenheit has happened as late as November 27th at Cincinnati and Columbus, and November 25th at Dayton. Elements such as topography, urban and rural setting and the placement of the recording instrument can create wide variations in temperatures across an area. National Weather Service temperatures are officially taken at an elevation of five feet above the ground, but the temperature at ground level may be colder. On typical fall nights when frost occurs, the temperature at the five foot level may read 36 degrees while at the ground level it is actually the 32 degrees needed to form frost. The following reference table will give an idea as to when the first freezing temperatures might occur, based on the latest 30 years of climatological data available at each of the listed locations (1991- 2020). An updated graphical presentation of the current status of the NWS Wilmington frost/freeze program will be available on our website at www.weather.gov/iln/. Location Normal First First 32F in one First 32F in nine 32F in Fall year out of ten years out of ten (10% probability) (90% likelihood) ..Southwest Ohio Cincinnati (KLUK) Oct 25 Oct 12 Nov 5 Dayton (KDAY) Oct 25 Oct 13 Nov 7 Milford Oct 18 Oct 6 Oct 28 Wilmington Oct 22 Oct 9 Nov 3 Xenia Oct 24 Oct 11 Nov 5 ..Central Ohio Circleville Oct 28 Oct 14 Nov 9 Columbus (KCMH) Oct 27 Oct 14 Nov 7 Newark Oct 18 Oct 5 Nov 1 Washington C.H. Oct 21 Oct 8 Oct 31 ..West Central Ohio Bellefontaine Oct 20 Oct 7 Oct 31 Greenville Oct 20 Oct 6 Nov 1 Kenton Oct 24 Oct 9 Nov 6 Springfield Oct 19 Oct 4 Nov 1 ..South Central Ohio Portsmouth Oct 25 Oct 11 Nov 6 ..Kentucky Covington (KCVG) Oct 25 Oct 12 Nov 5 Maysville Oct 30 Oct 17 Nov 11 Warsaw Oct 21 Oct 7 Oct 31 Williamstown Oct 29 Oct 14 Nov 11 ..Indiana Richmond Oct 20 Oct 7 Nov 1 Vevay Nov 1 Oct 20 Nov 14 |