| Tulsa Oklahoma Climatological Records | |||||||||||||
| Frost/Freeze | |||||||||||||
| Record and Mean Dates of Last Occurrence in Spring and First Occurrence in Fall | |||||||||||||
| For the Period January 1906 through May 2009 | |||||||||||||
| Mean | Mean | Mean | |||||||||||
| Last Occurrence | First Occurrence | Days between | |||||||||||
| Temperature (F) | Spring | Fall | Occurrence | ||||||||||
| 32° Frost/Light Freeze | Mar 29 | Nov 03 | 218 | ||||||||||
| 28° Hard Freeze | Mar 18 | Nov 13 | 240 | ||||||||||
| 24° Killing Freeze | Mar 08 | Nov 26 | 263 | ||||||||||
| Record Last Occurrence | Record First Occurrence | ||||||||||||
| in Spring | in Fall | ||||||||||||
| Temperature (F) | Earliest | Latest | Earliest | Latest | |||||||||
| 32° Frost/Light Freeze | 6 Mar 1985 | 2 May 1909 | 8 Oct 1952 | 28 Nov 1990 | |||||||||
| 28° Hard Freeze | 14 Feb 1981 | 17 Apr 1921 | 9 Oct 2000 | 16 Dec 1981 | |||||||||
| 24° Killing Freeze | 14 Jan 1999 | 13 Apr 1957 | 24 Oct 1917 | 28 Dec 1971 | |||||||||
| Record Number of Days Between First and Last Occurrence | |||||||||||||
| Fewest Number | Greatest Number | ||||||||||||
| Temperature (F) | Spring | of Days | Fall | Spring | of Days | Fall | |||||||
| 32° Frost/Light Freeze | 2 May 1909 | 163 | 13 Oct 1909 | 6 Mar 1985 | 257 | 19 Nov 1985 | |||||||
| 28° Hard Freeze | 13 Apr 1957 | 195 | 26 Oct 1957 | 14 Feb 1981 | 304 | 16 Dec 1981 | |||||||
| 24° Killing Freeze | 27 Mar 1913 | 215 | 29 Oct 1913 | 14 Jan 1999 | 339 | 20 Dec 1999 | |||||||
| National Weather Service | Disclaimer | Comments/Feedback | |||||||||||
| Tulsa, OK | Privacy Policy | ||||||||||||
| 10159 E. 11th St. Suite 300 | |||||||||||||
| Tulsa, OK 74128 | |||||||||||||
| 918.838.7838 | |||||||||||||
| Date Modified: May 19, 2009 | |||||||||||||