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

Period of record 1907-present

Rank Greatest Annual Number
of Days (Year)
Most Consecutive Days and Dates
(1907 - present)
 1  100 (2011)  28 (July 2 - July 29, 2011)
 2  60 (1969)  27 (July 7 - August 2, 1912)
 3  59 (1924)*  26 (July 30 - August 24, 2010)
 4  58 (2020)  24 (July 28 - August 20, 2019)
 5  56 (2012)  18 (June 18 - July 5, 1969)
   55 (1917)*  18 (July 30 - August 17, 1943)
 7  55 (1920)*  17 (August 15 - August 31, 2011)
   52 (1960)*  17 (June 12 - June 28, 1911)
    52 (1912)* 16 (July 14 - July 29, 2018) 
10  52 (1911)* 16 (July 28- August 12, 2012) #

* Denotes missing data

# Sixteen consecutive days was also matched in 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