First and last freeze/frost dates for San Antonio, TX ,United StatesFirst and last freeze/frost dates for:
Detailed station data* follows:
Boerne, TX (Kendall county):
|Spring 32°||Apr 11||Apr 3||Mar 29||Mar 24||Mar 20||Mar 15||Mar 10||Mar 5||Feb 25|
|Spring 28°||Mar 28||Mar 20||Mar 14||Mar 9||Mar 4||Feb 27||Feb 22||Feb 16||Feb 7|
|Spring 24°||Mar 11||Mar 1||Feb 22||Feb 16||Feb 10||Feb 5||Jan 29||Jan 22||Jan 10|
|Fall 32°||Oct 27||Nov 1||Nov 5||Nov 8||Nov 12||Nov 15||Nov 19||Nov 23||Nov 29|
|Fall 28°||Nov 3||Nov 10||Nov 15||Nov 19||Nov 23||Nov 27||Dec 2||Dec 7||Dec 14|
|Fall 24°||Nov 18||Nov 25||Dec 1||Dec 6||Dec 10||Dec 15||Dec 20||Dec 25||Jan 3|
San Antonio Wb Ap, TX (Bexar county):
|Spring 32°||Mar 21||Mar 14||Mar 9||Mar 4||Feb 28||Feb 23||Feb 19||Feb 13||Feb 6|
|Spring 28°||Mar 13||Mar 1||Feb 20||Feb 13||Feb 6||Jan 30||Jan 23||Jan 14||Jan 2|
|Spring 24°||Feb 21||Feb 10||Feb 2||Jan 26||Jan 20||Jan 13||Jan 5||Dec 25||- -|
|Fall 32°||Nov 7||Nov 13||Nov 17||Nov 21||Nov 24||Nov 28||Dec 2||Dec 7||Dec 13|
|Fall 28°||Nov 14||Nov 23||Nov 29||Dec 5||Dec 10||Dec 16||Dec 21||Dec 27||Jan 5|
|Fall 24°||Dec 2||Dec 12||Dec 20||Dec 27||Jan 3||Jan 10||Jan 18||Jan 31||- -|
Canyon Dam, TX (Comal county):
|Spring 32°||Mar 21||Mar 12||Mar 6||Mar 1||Feb 24||Feb 19||Feb 14||Feb 7||Jan 30|
|Spring 28°||Mar 10||Feb 28||Feb 21||Feb 15||Feb 9||Feb 3||Jan 27||Jan 19||Jan 7|
|Spring 24°||Feb 25||Feb 15||Feb 8||Feb 1||Jan 26||Jan 20||Jan 13||Jan 4||Dec 19|
|Fall 32°||Nov 10||Nov 17||Nov 22||Nov 26||Dec 1||Dec 5||Dec 9||Dec 14||Dec 21|
|Fall 28°||Nov 15||Nov 24||Dec 1||Dec 7||Dec 12||Dec 17||Dec 23||Dec 30||Jan 10|
|Fall 24°||Dec 3||Dec 13||Dec 21||Dec 27||Jan 3||Jan 9||Jan 17||Jan 28||- -|
* 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.