Detailed station data* follows:
|Spring 32°||May 12||May 8||May 6||May 3||May 1||Apr 29||Apr 27||Apr 24||Apr 21|
|Spring 28°||Apr 26||Apr 22||Apr 20||Apr 17||Apr 15||Apr 13||Apr 10||Apr 8||Apr 4|
|Spring 24°||Apr 15||Apr 11||Apr 8||Apr 5||Apr 2||Mar 31||Mar 28||Mar 25||Mar 20|
|Fall 32°||Sep 25||Sep 29||Oct 2||Oct 5||Oct 7||Oct 10||Oct 12||Oct 15||Oct 19|
|Fall 28°||Oct 6||Oct 10||Oct 14||Oct 16||Oct 19||Oct 22||Oct 24||Oct 28||Oct 31|
|Fall 24°||Oct 16||Oct 22||Oct 26||Oct 30||Nov 1||Nov 5||Nov 8||Nov 12||Nov 18|
|Spring 32°||May 10||May 6||May 3||May 1||Apr 28||Apr 26||Apr 23||Apr 20||Apr 16|
|Spring 28°||May 1||Apr 27||Apr 24||Apr 22||Apr 20||Apr 18||Apr 15||Apr 12||Apr 9|
|Spring 24°||Apr 15||Apr 12||Apr 9||Apr 7||Apr 4||Apr 2||Mar 31||Mar 28||Mar 25|
|Fall 32°||Sep 24||Sep 29||Oct 3||Oct 6||Oct 9||Oct 12||Oct 15||Oct 19||Oct 24|
|Fall 28°||Oct 3||Oct 9||Oct 14||Oct 18||Oct 21||Oct 25||Oct 29||Nov 1||Nov 8|
|Fall 24°||Oct 23||Oct 28||Oct 31||Nov 3||Nov 6||Nov 9||Nov 13||Nov 17||Nov 22|
|Spring 32°||May 7||May 3||May 1||Apr 28||Apr 26||Apr 24||Apr 22||Apr 19||Apr 15|
|Spring 28°||Apr 23||Apr 20||Apr 17||Apr 15||Apr 13||Apr 11||Apr 9||Apr 7||Apr 3|
|Spring 24°||Apr 16||Apr 11||Apr 8||Apr 5||Apr 3||Mar 31||Mar 28||Mar 25||Mar 20|
|Fall 32°||Sep 29||Oct 4||Oct 8||Oct 11||Oct 14||Oct 17||Oct 20||Oct 24||Oct 29|
|Fall 28°||Oct 8||Oct 14||Oct 18||Oct 22||Oct 25||Oct 28||Oct 31||Nov 4||Nov 10|
|Fall 24°||Oct 26||Oct 31||Nov 3||Nov 7||Nov 10||Nov 13||Nov 16||Nov 20||Nov 25|
* 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.