Rockwall County, TX
: September 2026 so far averaged 85.8°F in Rockwall County, TX, the warmest 1 to 29 September in the county average since the data begin in 1951 (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- High
- 90.8°F
- Warmest since 2023
- 19th warmest of 76
- Low
- 72.5°F
- Warmest since 2019
- 6th warmest of 76
No measurable precipitation in the county average of Rockwall County, TX for 17 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 51.4 to 67.9°F
Every year as a table
Every 29 September high of the county average in Rockwall County, TX since 1951: 90.8°F in 2026; the highest is 102.3°F, in 1953.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 90.8 | 72.5 |
| 2025 | 86.8 | 62 |
| 2024 | 88 | 62.4 |
| 2023 | 94.5 | 70.6 |
| 2022 | 88.6 | 59.5 |
| 2021 | 93 | 68.4 |
| 2020 | 76 | 51 |
| 2019 | 94.7 | 75.1 |
| 2018 | 78.1 | 61.8 |
| 2017 | 81.2 | 65.5 |
| 2016 | 86.9 | 54.6 |
| 2015 | 88.6 | 67.2 |
| 2014 | 87.3 | 63.6 |
| 2013 | 85.9 | 61.7 |
| 2012 | 86.2 | 68.4 |
| 2011 | 94.4 | 65.7 |
| 2010 | 84 | 53.4 |
| 2009 | 80.8 | 53.2 |
| 2008 | 85.6 | 55.9 |
| 2007 | 87.2 | 61.3 |
| 2006 | 78.1 | 52.3 |
| 2005 | 96.3 | 61.1 |
| 2004 | 84.3 | 56 |
| 2003 | 79.8 | 54.6 |
| 2002 | 91.4 | 64.4 |
| 2001 | 80.3 | 54 |
| 2000 | 83 | 51.4 |
| 1999 | 86.8 | 55.2 |
| 1998 | 94.1 | 70.1 |
| 1997 | 92.6 | 62.3 |
| 1996 | 73.7 | 47.4 |
| 1995 | 87.5 | 67.8 |
| 1994 | 94.6 | 63.4 |
| 1993 | 88.3 | 56.5 |
| 1992 | 79.5 | 56 |
| 1991 | 78.9 | 51.4 |
| 1990 | 90.1 | 64.9 |
| 1989 | 79.6 | 52.8 |
| 1988 | 88.3 | 63.6 |
| 1987 | 82.5 | 61.9 |
| 1986 | 90.9 | 72.9 |
| 1985 | 78 | 59.8 |
| 1984 | 57.4 | 51.3 |
| 1983 | 86.6 | 63.2 |
| 1982 | 89.1 | 67 |
| 1981 | 91.4 | 65.1 |
| 1980 | 62.3 | 56 |
| 1979 | 90.8 | 63.7 |
| 1978 | 85.3 | 56.9 |
| 1977 | 95.1 | 74.5 |
| 1976 | 72.7 | 60 |
| 1975 | 83.4 | 59.1 |
| 1974 | 73 | 47.6 |
| 1973 | 76.6 | 55.1 |
| 1972 | 88.1 | 71.6 |
| 1971 | 88.3 | 69.7 |
| 1970 | 74 | 56 |
| 1969 | 90.7 | 62.5 |
| 1968 | 83 | 57.8 |
| 1967 | 67.1 | 44.6 |
| 1966 | 80 | 58.7 |
| 1965 | 82.8 | 60.9 |
| 1964 | 65.8 | 56.4 |
| 1963 | 84.9 | 60.9 |
| 1962 | 83 | 58.5 |
| 1961 | 82.6 | 65 |
| 1960 | 82.1 | 56.1 |
| 1959 | 92.6 | 65.9 |
| 1958 | 76 | 54.1 |
| 1957 | 79.3 | 57.4 |
| 1956 | 95.2 | 61.5 |
| 1955 | 91.3 | 72.8 |
| 1954 | 95.6 | 75.6 |
| 1953 | 102.3 | 65.9 |
| 1952 | 92.4 | 58.6 |
| 1951 | 74.3 | 57.9 |
The month
August 2026 averaged 89.2°F in Rockwall County, TX, the warmest August in the county average since 2023, 3rd warmest of 132 (county average from NOAA's monthly county data, 1895 to 2026).
The month in words
- Tuesday 29 September 2026: a high of 90.8°F averaged over Rockwall County, TX, the warmest 29 September in the county average since 2023, tied 19th warmest of 76 (with 1979) (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 72.5°F averaged over Rockwall County, TX, the warmest 29 September night in the county average since 2019, 6th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Dallas, TX 25.0 mi, the nearest city with its own station