Nassau County, FL
Tuesday : a low of 58.5°F averaged over Nassau County, FL, the coldest 29 September night in the county average since 2008, 6th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- High
- 89°F
- Warmest since 2019
- 14th warmest of 76
- Low
- 58.5°F
- Coldest since 2008
- 6th coldest of 76
No measurable precipitation in the county average of Nassau County, FL for 4 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 60.8 to 72.6°F
Every year as a table
Every 29 September high of the county average in Nassau County, FL since 1951: 89°F in 2026; the highest is 93.3°F, in 1986.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 89 | 58.5 |
| 2025 | 88.9 | 70.8 |
| 2024 | 88.2 | 69.2 |
| 2023 | 78.7 | 68.3 |
| 2022 | 75 | 63.3 |
| 2021 | 87 | 61.3 |
| 2020 | 84.5 | 71.7 |
| 2019 | 90.1 | 68.4 |
| 2018 | 92.6 | 73 |
| 2017 | 93.2 | 70.8 |
| 2016 | 89.5 | 69.4 |
| 2015 | 84.5 | 73.6 |
| 2014 | 86.2 | 71.8 |
| 2013 | 78.4 | 65.7 |
| 2012 | 87.7 | 67 |
| 2011 | 90.8 | 69.5 |
| 2010 | 82.9 | 69.2 |
| 2009 | 89.1 | 64.3 |
| 2008 | 86.2 | 57.8 |
| 2007 | 89.3 | 69.8 |
| 2006 | 85.4 | 62.4 |
| 2005 | 88.6 | 69.4 |
| 2004 | 88.1 | 71.2 |
| 2003 | 85.2 | 60.3 |
| 2002 | 89.8 | 71.5 |
| 2001 | 80.7 | 60.9 |
| 2000 | 79.8 | 62.4 |
| 1999 | 87.6 | 72.5 |
| 1998 | 88.9 | 74 |
| 1997 | 86.2 | 67.7 |
| 1996 | 88.4 | 67 |
| 1995 | 82.7 | 67.4 |
| 1994 | 85.9 | 62.9 |
| 1993 | 81.8 | 54.9 |
| 1992 | 82.5 | 70.8 |
| 1991 | 80.5 | 61.2 |
| 1990 | 81.5 | 69.3 |
| 1989 | 79 | 69.9 |
| 1988 | 84.7 | 64.9 |
| 1987 | 87.2 | 66 |
| 1986 | 93.3 | 71.2 |
| 1985 | 80.3 | 59.7 |
| 1984 | 74.2 | 63 |
| 1983 | 77.9 | 57.7 |
| 1982 | 82.7 | 60.2 |
| 1981 | 87.4 | 62.7 |
| 1980 | 85.7 | 69.9 |
| 1979 | 85.5 | 69.5 |
| 1978 | 81.2 | 62.7 |
| 1977 | 89.9 | 65.6 |
| 1976 | 89.2 | 70.5 |
| 1975 | 83.5 | 62.1 |
| 1974 | 90.5 | 70.6 |
| 1973 | 85.9 | 67.1 |
| 1972 | 89.3 | 66.7 |
| 1971 | 84.7 | 65.9 |
| 1970 | 84.9 | 61.2 |
| 1969 | 83.5 | 64.8 |
| 1968 | 85.4 | 66.9 |
| 1967 | 82.7 | 56.3 |
| 1966 | 78 | 68.6 |
| 1965 | 75 | 66 |
| 1964 | 87.8 | 70.3 |
| 1963 | 81.4 | 69.3 |
| 1962 | 76.2 | 52 |
| 1961 | 86.4 | 64.7 |
| 1960 | 81.7 | 69.1 |
| 1959 | 85 | 70.7 |
| 1958 | 83.2 | 60 |
| 1957 | 76.2 | 65.4 |
| 1956 | 82.1 | 62.3 |
| 1955 | 86.5 | 67.7 |
| 1954 | 86.6 | 69.9 |
| 1953 | 83 | 66.1 |
| 1952 | 82.8 | 66.4 |
| 1951 | 81 | 68.9 |
The month
September 2026 so far averaged 78.4°F in Nassau County, FL, the warmest 1 to 29 September in the county average since 2024, tied 29th warmest of 76 (with 1957) (county average from NOAA gridded data, 1951 to 2026).
The month in words
- August 2026 averaged 82.8°F in Nassau County, FL, the warmest August in the county average since 2024, tied 11th warmest of 132 (with 2019 and 1987) (county average from NOAA's monthly county data, 1895 to 2026).
- Tuesday 29 September 2026: a high of 89°F averaged over Nassau County, FL, the warmest 29 September in the county average since 2019, 14th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Jacksonville, FL 8.7 mi, the nearest city with its own station