National Weather Service United States Department of Commerce

 

San Angelo:

Average annual number of 100 degree days (1991-2020): 30 days

 


 

 Record annual and consecutive days with high temperatures of 100 degress or greater. Rank column applies to the greatest annual number of days.

Period of record 1907-present

Rank Greatest Annual Number
of Days (Year)
Most Consecutive Days and Dates
(1907 - present)
 1  100 (2011) 37 (July 4 - August 9, 2022)
 2  78 (2022) 28 (July 2 - July 29, 2011)
 3  60 (1969)  27 (July 7 - August 2, 1912)
 4   59 (1924)*  26 (July 30 - August 24, 2010)
 5  58 (2020)  24 (July 28 - August 20, 2019)
 6  56 (2012) 18 (June 18 - July 5, 1969)
 7   55 (1917)*  18 (July 30 - August 17, 1943)
    55 (1910)*      17 (August 15 - August 31, 2011)
9  52 (1960) 17 (June 12 - June 28, 1911) 
         52 (1912)*@ 16 (June 14- June 29, 2023)#

* Denotes missing data

@ Ten consecutive days also occurred in 1911

# Sixteen consecutive days was also matched in 2018, 2012, 2011, 1929 and 1917


Years when Maximum Temperature did not reach 100 degrees:

1950
1976
2007

 

Earliest and Latest Dates of Occurrence:

Average calendar date of the first 100-degree high (1991-2020): May 26

Earliest calendar date (on record) of the first 100-degree high: April 6, 1972

Latest calendar date (on record) of the first 100-degree high (in years where 100-degree temperatures occurred):  August 15, 1997

Latest calendar date (on record) of the last 100-degree high:  October 13, 1926