Jefferson County, IN
: September 2026 so far averaged 73.9°F in Jefferson County, IN, 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.
- Tuesday 29 September 2026: a high of 79.3°F averaged over Jefferson County, IN, the warmest 29 September in the county average since 2025, 25th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 46.7°F averaged over Jefferson County, IN, the coldest 29 September night in the county average since 2022, 30th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- No measurable precipitation in the county average of Jefferson County, IN for 5 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
The month
- August 2026 averaged 75.4°F in Jefferson County, IN, the warmest August in the county average since 2021, tied 34th warmest of 132 (with 1898) (county average from NOAA's monthly county data, 1895 to 2026).
- Days of the month without a value
- 0
Every year on this date
- Above the normal range
- In it
- Below it
- Normal range
- This year and the extreme
Every year as a table
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 79.3 | 46.7 |
| 2025 | 86.5 | 57.1 |
| 2024 | 65.8 | 64.6 |
| 2023 | 76.9 | 60 |
| 2022 | 64.7 | 40.4 |
| 2021 | 83.3 | 58.9 |
| 2020 | 65.2 | 45.6 |
| 2019 | 91.3 | 66.9 |
| 2018 | 72.1 | 49.4 |
| 2017 | 75.3 | 47.8 |
| 2016 | 65.9 | 51.9 |
| 2015 | 83.5 | 60.7 |
| 2014 | 83 | 55.9 |
| 2013 | 81.1 | 53.3 |
| 2012 | 70.6 | 55 |
| 2011 | 68.6 | 50.1 |
| 2010 | 72.5 | 45.3 |
| 2009 | 63.1 | 48.9 |
| 2008 | 80.8 | 52.1 |
| 2007 | 79.4 | 49.6 |
| 2006 | 63.4 | 41.7 |
| 2005 | 77.6 | 48.4 |
| 2004 | 72.7 | 47.1 |
| 2003 | 59.8 | 41.3 |
| 2002 | 77.5 | 53.6 |
| 2001 | 65 | 42.7 |
| 2000 | 68.7 | 42 |
| 1999 | 84.1 | 57.4 |
| 1998 | 84.3 | 54.8 |
| 1997 | 80.9 | 50.2 |
| 1996 | 66.8 | 44.5 |
| 1995 | 79.7 | 47 |
| 1994 | 71.3 | 42 |
| 1993 | 67.2 | 38.7 |
| 1992 | 72.5 | 38.7 |
| 1991 | 76.7 | 47.2 |
| 1990 | 83.2 | 56.4 |
| 1989 | 71.5 | 42.3 |
| 1988 | 80.9 | 55.7 |
| 1987 | 83.5 | 56.7 |
| 1986 | 90.1 | 68.6 |
| 1985 | 71.7 | 42 |
| 1984 | 61.8 | 41.8 |
| 1983 | 79.5 | 49.7 |
| 1982 | 74.7 | 47.2 |
| 1981 | 70.4 | 40.5 |
| 1980 | 75.1 | 47.5 |
| 1979 | 71.7 | 54.4 |
| 1978 | 71.1 | 42.6 |
| 1977 | 72.1 | 46 |
| 1976 | 67 | 45 |
| 1975 | 71.1 | 41.8 |
| 1974 | 71.9 | 53.3 |
| 1973 | 84.5 | 65.1 |
| 1972 | 72.9 | 61.5 |
| 1971 | 86.1 | 64.8 |
| 1970 | 66.5 | 38.4 |
| 1969 | 73.6 | 41.4 |
| 1968 | 77.1 | 46.9 |
| 1967 | 48.4 | 38.7 |
| 1966 | 69.9 | 51.2 |
| 1965 | 76.5 | 48.1 |
| 1964 | 56.4 | 48 |
| 1963 | 72.4 | 47.5 |
| 1962 | 64.7 | 35.6 |
| 1961 | 69.2 | 37.4 |
| 1960 | 76.1 | 52.4 |
| 1959 | 87.1 | 65 |
| 1958 | 66.4 | 41.2 |
| 1957 | 68.5 | 42.2 |
| 1956 | 76.1 | 44 |
| 1955 | 80.9 | 52.2 |
| 1954 | 88.9 | 60.9 |
| 1953 | 93.2 | 45.9 |
| 1952 | 87.4 | 51.9 |
| 1951 | 62.5 | 35 |
Nearby
Louisville, KY 44.7 mi, the nearest city with its own station