Detailed station data* follows:
|Spring 32°||May 7||May 1||Apr 27||Apr 23||Apr 20||Apr 17||Apr 13||Apr 9||Apr 3|
|Spring 28°||Apr 21||Apr 16||Apr 12||Apr 9||Apr 6||Apr 2||Mar 30||Mar 26||Mar 21|
|Spring 24°||Apr 4||Mar 30||Mar 26||Mar 23||Mar 20||Mar 17||Mar 13||Mar 10||Mar 4|
|Fall 32°||Oct 8||Oct 12||Oct 15||Oct 17||Oct 19||Oct 22||Oct 24||Oct 27||Oct 31|
|Fall 28°||Oct 12||Oct 18||Oct 22||Oct 25||Oct 28||Oct 31||Nov 2||Nov 6||Nov 12|
|Fall 24°||Oct 25||Oct 31||Nov 4||Nov 8||Nov 12||Nov 15||Nov 19||Nov 24||Dec 1|
|Spring 32°||May 3||Apr 28||Apr 24||Apr 21||Apr 18||Apr 15||Apr 11||Apr 8||Apr 2|
|Spring 28°||Apr 22||Apr 16||Apr 12||Apr 8||Apr 5||Apr 1||Mar 28||Mar 24||Mar 18|
|Spring 24°||Apr 1||Mar 26||Mar 22||Mar 19||Mar 16||Mar 13||Mar 9||Mar 5||Feb 28|
|Fall 32°||Oct 7||Oct 12||Oct 15||Oct 17||Oct 20||Oct 22||Oct 25||Oct 28||Oct 31|
|Fall 28°||Oct 14||Oct 20||Oct 25||Oct 29||Oct 31||Nov 4||Nov 7||Nov 12||Nov 18|
|Fall 24°||Oct 30||Nov 4||Nov 8||Nov 11||Nov 14||Nov 17||Nov 21||Nov 25||Dec 1|
|Spring 32°||May 11||May 5||Apr 30||Apr 27||Apr 23||Apr 20||Apr 16||Apr 12||Apr 6|
|Spring 28°||Apr 20||Apr 15||Apr 12||Apr 9||Apr 6||Apr 3||Mar 31||Mar 28||Mar 23|
|Spring 24°||Apr 3||Mar 29||Mar 25||Mar 22||Mar 19||Mar 16||Mar 13||Mar 9||Mar 4|
|Fall 32°||Oct 4||Oct 8||Oct 12||Oct 15||Oct 17||Oct 20||Oct 23||Oct 27||Oct 31|
|Fall 28°||Oct 14||Oct 19||Oct 23||Oct 26||Oct 29||Oct 31||Nov 3||Nov 7||Nov 12|
|Fall 24°||Oct 26||Oct 31||Nov 4||Nov 7||Nov 11||Nov 14||Nov 17||Nov 21||Nov 27|
* This station data is available courtesy the National Climatic Data Center.
For each weather station, you will see a temperature along with tables of data organized into percentage columns. The percentage column tells you the probability that you will experience that row's temperature on or near that date. Here are two examples to help you determine your probable last frost and first freeze dates.
Example 1 (Last Frost). In the Spring 32° row, if you have "Apr 15" under the 50% column, that means you have a 50% chance of seeing frost on or before April 15th.
Example 2 (First Freeze). In the Fall 24° row, if you have "Dec 1" under the 90% column, that means you have a 90% chance of seeing 24 degrees on or after December 1st.
Empty cells indicate you have a less than 10% chance of ever seeing that temperature.