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San Angelo:

Average annual number of 100 degree days (1981-2010): 18.2 days*

*Keep in mind that 2011 is not in the time period for the official normals.

100 Degree Days
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 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  56 (2012)  18 (June 18 - July 5, 1969)
   55 (1917)  18 (July 30 - August 17, 1943)
  6   55 (1910)*  17 (August 15 - August 31, 2011)
   52 (1960)  17 (June 12 - June 28, 1911)
 8    52 (1912)* 16 (July 28 - August 12, 2012) 
   52 (1911)* 16 (June 6- June 21, 2011) 
   49 (1962) 16 (August 3 - August 18, 1929) 

* Denotes missing data

# Twelve consecutive days was also matched in 2000, 1969 and 1964


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 (1981-2010): June 5

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 3, 1951