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