Stackeraleks333 // ShutterstockColdest Septembers in Texas since 1895Stacker compiled a ranking of the coldest Septembers in Texas since 1895 using data from the National Centers for Environmental Information. September 1989 (tie)- Average temperature: 73.1°F- Monthly high temperature: 86.1°F- Monthly low temperature: 60.1°F- Total precipitation: 2.12"#9. September 1968 (tie)- Average temperature: 73.1°F- Monthly high temperature: 85.6°F- Monthly low temperature: 60.5°F- Total precipitation: 3.32"#7. September 1913 (tie)- Average temperature: 71.8°F- Monthly high temperature: 83.1°F- Monthly low temperature: 60.6°F- Total precipitation: 5.53"#1. September 1974- Average temperature: 69.1°F- Monthly high temperature: 79.1°F- Monthly low temperature: 59.1°F- Total precipitation: 6.32"