Abilene:
Average annual number of 100 degree days (1981-2010): 12.2 days*
*Keep in mind that 2011 is not in the time period for the official normals.
Annual and consecutive days with high temperatures of 100 degress or greater
Period of record 1886-present
| Rank | Greatest Annual Number of Days (Year) |
Most Consecutive Days and Dates (1937 - present) |
| 1 | 81 (2011) | 30 (August 3 - September 1, 1952) |
| 2 | 46 (1934) | 21 (July 1 - July 21, 1978) |
| 44 (1943) | 21 (June 8 - June 28, 1953) | |
| 4 | 43 (1952) | 19 (July 27 - August 14, 1937) |
| 5 | 42 (1980) | 18 (July 12 - July 29, 2011) |
| 42 (1978) | 18 (July 30 - August 16, 1943) | |
| 7 | 40 (2012) | 16 (August 16 - August 31, 2011) |
| 8 | 40 (2000) | 12 (July 31 - August 11, 2011) |
| 37 (1998) | 12 (July 23 - August 3, 1998) | |
| 37 (1953) | 12 (July 8 - July 19, 1980) # |
# Twelve consecutive days was also matched in 1980, 1943 and 1918
Years when Maximum Temperature did not reach 100 degrees:
1890
1961
1968
1975
1992
2007
Earliest and Latest Dates of Occurrence:
Average calendar date of the first 100-degree high (1981-2010): June 14
Earliest calendar date (on record) of the first 100-degree high: April 18, 1925
Latest calendar date (on record) of the first 100-degree high (in years where 100-degree temperatures occurred): August 22, 1979
Latest calendar date (on record) of the last 100-degree high: October 8, 1979
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