Union County, TN
: September 2026 so far averaged 74.8°F in Union County, TN, 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
- 76.6°F
- Warmest since 2025
- 38th warmest of 76
- Low
- 46°F
- Coldest since 2022
- 23rd coldest of 76
No measurable precipitation in the county average of Union County, TN for 5 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 41.7 to 63.1°F
Every year as a table
Every 29 September high of the county average in Union County, TN since 1951: 76.6°F in 2026; the highest is 89.8°F, in 2019.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 76.6 | 46 |
| 2025 | 81.8 | 58.2 |
| 2024 | 70.3 | 63.2 |
| 2023 | 77.4 | 55.7 |
| 2022 | 65.4 | 40 |
| 2021 | 78.3 | 54.2 |
| 2020 | 80.2 | 54 |
| 2019 | 89.8 | 65.6 |
| 2018 | 73.8 | 58.5 |
| 2017 | 82.5 | 56.4 |
| 2016 | 80.6 | 48.1 |
| 2015 | 82.1 | 63.5 |
| 2014 | 77 | 57.8 |
| 2013 | 76.7 | 54.2 |
| 2012 | 76.7 | 60.9 |
| 2011 | 76.8 | 54 |
| 2010 | 68.2 | 50.3 |
| 2009 | 73.2 | 45.1 |
| 2008 | 78.1 | 54.3 |
| 2007 | 80.1 | 44.6 |
| 2006 | 67.5 | 43.5 |
| 2005 | 81.9 | 57.8 |
| 2004 | 73.1 | 53.9 |
| 2003 | 64.8 | 40.3 |
| 2002 | 78.6 | 56.4 |
| 2001 | 68.7 | 41.8 |
| 2000 | 73.6 | 44.4 |
| 1999 | 81.8 | 63 |
| 1998 | 88.5 | 64.4 |
| 1997 | 70.4 | 51.4 |
| 1996 | 67.6 | 45.8 |
| 1995 | 77.1 | 48.9 |
| 1994 | 74.2 | 44.9 |
| 1993 | 70.8 | 39.5 |
| 1992 | 74.5 | 50.3 |
| 1991 | 76.1 | 40.5 |
| 1990 | 79.3 | 53.3 |
| 1989 | 71.5 | 49.1 |
| 1988 | 78 | 54.9 |
| 1987 | 80.7 | 52.6 |
| 1986 | 86.9 | 64.1 |
| 1985 | 73.5 | 41.6 |
| 1984 | 59.8 | 48.5 |
| 1983 | 78.4 | 46.1 |
| 1982 | 76.5 | 50 |
| 1981 | 75.2 | 42 |
| 1980 | 62 | 52.4 |
| 1979 | 73.4 | 62 |
| 1978 | 77.8 | 55.5 |
| 1977 | 70.4 | 47.8 |
| 1976 | 72.7 | 57.4 |
| 1975 | 72.7 | 45.4 |
| 1974 | 80.1 | 61.4 |
| 1973 | 82.6 | 64 |
| 1972 | 80.1 | 64.4 |
| 1971 | 85.3 | 60.6 |
| 1970 | 68.2 | 39.5 |
| 1969 | 74.2 | 41.6 |
| 1968 | 79.9 | 47.7 |
| 1967 | 55 | 41.6 |
| 1966 | 72.6 | 57.2 |
| 1965 | 78 | 48 |
| 1964 | 73.6 | 63.7 |
| 1963 | 64.6 | 53.7 |
| 1962 | 65.3 | 40.3 |
| 1961 | 80.4 | 48.2 |
| 1960 | 70.9 | 60.7 |
| 1959 | 87.8 | 59.3 |
| 1958 | 72.1 | 42.3 |
| 1957 | 61.3 | 49.1 |
| 1956 | 73.4 | 45.8 |
| 1955 | 80 | 57.3 |
| 1954 | 88.4 | 58.9 |
| 1953 | 89.7 | 45.4 |
| 1952 | 82.4 | 50.5 |
| 1951 | 69.2 | 38.6 |
The month
August 2026 averaged 76.5°F in Union County, TN, the warmest August in the county average since 2016, tied 24th warmest of 132 (with 2002 and 1987) (county average from NOAA's monthly county data, 1895 to 2026).
The month in words
- Tuesday 29 September 2026: a high of 76.6°F averaged over Union County, TN, the warmest 29 September in the county average since 2025, 38th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 46°F averaged over Union County, TN, the coldest 29 September night in the county average since 2022, 23rd coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Oak Ridge, TN 28.6 mi, the nearest city with its own station