Heat Index Counts for the Gainesville Regional Airport (GNV), 1973 – 2024
Values represent the total number of days when the maximum heat index reached or exceeded each threshold temperature. Individual years in the period of record without data are excluded.
| Year | ≥ 100°F | ≥ 105°F | ≥ 108°F | ≥ 110°F | ≥ 115°F |
|---|---|---|---|---|---|
| 1973 | 41 | 2 | 1 | 0 | 0 |
| 1974 | 30 | 1 | 0 | 0 | 0 |
| 1975 | 23 | 3 | 1 | 0 | 0 |
| 1976 | 32 | 6 | 1 | 0 | 0 |
| 1977 | 37 | 1 | 0 | 0 | 0 |
| 1978 | 35 | 3 | 2 | 1 | 1 |
| 1979 | 42 | 7 | 2 | 2 | 0 |
| 1980 | 45 | 13 | 7 | 6 | 3 |
| 1981 | 49 | 16 | 6 | 5 | 0 |
| 1982 | 41 | 9 | 2 | 1 | 1 |
| 1983 | 34 | 7 | 3 | 2 | 1 |
| 1984 | 25 | 2 | 0 | 0 | 0 |
| 1985 | 25 | 7 | 5 | 1 | 0 |
| 1986 | 34 | 7 | 5 | 4 | 2 |
| 1987 | 63 | 19 | 8 | 4 | 1 |
| 1988 | 38 | 2 | 1 | 1 | 0 |
| 1989 | 36 | 1 | 0 | 0 | 0 |
| 1990 | 37 | 6 | 2 | 1 | 0 |
| 1991 | 31 | 3 | 0 | 0 | 0 |
| 1992 | 31 | 3 | 1 | 1 | 0 |
| 1993 | 38 | 7 | 4 | 0 | 0 |
| 1994 | 23 | 3 | 2 | 2 | 0 |
| 1995 | 29 | 7 | 1 | 0 | 0 |
| 1996 | 19 | 3 | 2 | 0 | 0 |
| 1997 | 30 | 7 | 3 | 2 | 1 |
| 1998 | 68 | 22 | 10 | 6 | 1 |
| 1999 | 26 | 8 | 5 | 3 | 0 |
| 2000 | 21 | 6 | 3 | 3 | 2 |
| 2001 | 17 | 1 | 0 | 0 | 0 |
| 2002 | 21 | 1 | 0 | 0 | 0 |
| 2003 | 2 | 0 | 0 | 0 | 0 |
| 2004 | 18 | 0 | 0 | 0 | 0 |
| 2005 | 26 | 0 | 0 | 0 | 0 |
| 2006 | 5 | 1 | 1 | 1 | 0 |
| 2007 | 16 | 1 | 0 | 0 | 0 |
| 2008 | 4 | 0 | 0 | 0 | 0 |
| 2009 | 15 | 3 | 0 | 0 | 0 |
| 2010 | 64 | 20 | 6 | 1 | 0 |
| 2011 | 47 | 11 | 0 | 0 | 0 |
| 2012 | 10 | 0 | 0 | 0 | 0 |
| 2013 | 10 | 0 | 0 | 0 | 0 |
| 2014 | 19 | 4 | 2 | 0 | 0 |
| 2015 | 33 | 5 | 0 | 0 | 0 |
| 2016 | 55 | 4 | 0 | 0 | 0 |
| 2017 | 28 | 0 | 0 | 0 | 0 |
| 2018 | 71 | 8 | 2 | 0 | 0 |
| 2019 | 53 | 9 | 1 | 0 | 0 |
| 2020 | 64 | 13 | 1 | 0 | 0 |
| 2021 | 24 | 3 | 1 | 1 | 0 |
| 2022 | 39 | 4 | 0 | 0 | 0 |
| 2023 | 63 | 26 | 10 | 5 | 1 |
| 2024 | 63 | 9 | 0 | 0 | 0 |
| 2025 | 0 | 0 | 0 | 0 | 0 |
