National Weather Service United States Department of Commerce

Are you ready for Freezing Temperatures?

Despite well above normal high temperatures being experienced across the area over the past few weeks, you should be aware that the climatological end of the growing season is fast approaching across south central and southeast Colorado. The following Freeze/Frost data for Alamosa, Colorado Springs and Pueblo have been compiled using NWS Pueblo  and NCDC records.

 

Alamosa

Mean Date of First Fall Freeze…………September 11th

Last Years First Fall Freeze..........September 8th (28 F)

Last Years First Hard Freeze (<=28 F)......September 8th

Earliest First Fall Freeze.....…………….August 9th, 2009

Latest First Fall Freeze...................October 4th, 1997

 

There is a 50 percent chance and 90 percent chance, respectively, of the following temperature thresholds by the specified date:
 

36F

August 31st

36F

September 17th

32F

September 14th

32F

September 28th

28F

September 21st

28F

October 2nd

 

 

Colorado Springs

  Mean Date of First Fall Freeze…........………October 1st

Last Years First Fall Freeze..................September 8th (30 F)

Last Years First Hard Freeze (<=28 F)...October 16th (28 F)

 Earliest First Fall Freeze…..........……September 1st, 1911

  Latest First Fall Freeze........................October 31st, 1963

 

There is a 50 percent chance and 90 percent chance, respectively, of the following temperature thresholds by the specified date:

 

36F

September 26th

36F

October 10th

32F

October 3rd

32F

October 15th

28F

October 10th

28F

October 27th

 

 

Pueblo

Mean Date of First Fall Freeze…..…..…….…October 8th 

Last Years First Fall Freeze................September 9th (32 F)

 Last Years First Hard Freeze (<=28 F)..October 18th (27 F) 

        Earliest First Fall Freeze......….…......September 9th, 2001, 2020

Latest First Fall Freeze.......................November 1st, 1963

 

There is a 50 percent chance and 90 percent chance, respectively, of the following temperature thresholds by the specified date:

 

36F

September 27th

36F

October 9th

32F

October 5th

32F

October 20th

28F

October 13th

28F

October 27th

 

 

 

Freeze/Frost Temperature Occurrence Probabilities for other selected Colorado cities can be found at the following: