Weather on July 21
Deltona, FL
55 Years of Data
Avg High
92°F
Avg Low
73°F
Warmest
2023
87°F avg
Coldest
1984
77°F avg
About This Date
July 21st in Deltona, FL typically brings hot summer weather, with average highs around 92°F and lows near 73°F. Over 55 years of records, the warmest July 21st was in 2023 (87°F average), while the coldest was 1984 (77°F) — a 10°F range across recorded history. Rain or other precipitation has occurred on about 56% of July 21st dates historically, with the wettest July 21st recording 6.35" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for July 21st in Deltona, FL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 97° | 78° | 87° | 0.86" | — |
| 2024 | 96° | 76° | 86° | 0.25" | — |
| 2023warmest | 96° | 79° | 87° | — | — |
| 2022 | 94° | 74° | 84° | 0.05" | — |
| 2021 | 93° | 72° | 82° | 6.35" | — |
| 2020 | 92° | 77° | 84° | 2.03" | — |
| 2019 | 92° | 74° | 83° | 0.05" | — |
| 2018 | 89° | 76° | 82° | — | — |
| 2017 | 95° | 73° | 84° | 0.76" | — |
| 2016 | 95° | 77° | 86° | — | — |
| 2015 | 92° | 76° | 84° | 0.38" | — |
| 2014 | 93° | 75° | 84° | 2.34" | — |
| 2013 | 89° | 72° | 80° | 1.19" | — |
| 2012 | 95° | 73° | 84° | 0.53" | — |
| 2011 | 96° | 71° | 84° | — | — |
| 2010 | 94° | 77° | 85° | — | — |
| 2009 | 91° | 71° | 81° | — | — |
| 2008 | 96° | 76° | 86° | — | — |
| 2007 | 92° | 74° | 83° | 0.08" | — |
| 2006 | 90° | 73° | 81° | — | — |
| 2005 | 93° | 78° | 86° | 0.76" | — |
| 2004 | 87° | 73° | 80° | 0.03" | — |
| 2003 | 92° | 75° | 83° | — | — |
| 2002 | 97° | 74° | 85° | 0.05" | — |
| 2001 | 89° | 74° | 81° | 0.08" | — |
| 2000 | 97° | 73° | 85° | 2.01" | — |
| 1999 | 94° | 72° | 83° | — | — |
| 1998 | 90° | 72° | 81° | — | — |
| 1997 | 93° | 70° | 81° | — | — |
| 1996 | 96° | 75° | 86° | — | — |
| 1995 | 97° | 73° | 85° | — | — |
| 1994 | 93° | 72° | 82° | 1.91" | — |
| 1993 | 92° | 75° | 83° | 0.66" | — |
| 1992 | 88° | 72° | 80° | — | — |
| 1991 | 89° | 73° | 81° | 1.3" | — |
| 1990 | 85° | 71° | 78° | — | — |
| 1989 | 93° | 72° | 82° | 0.56" | — |
| 1988 | 88° | 71° | 79° | 0.28" | — |
| 1987 | 90° | 72° | 81° | 0.13" | — |
| 1986 | 97° | 76° | 86° | — | — |
| 1985 | 88° | 71° | 79° | — | — |
| 1984coldest | 82° | 71° | 77° | — | — |
| 1983 | 94° | 72° | 83° | — | — |
| 1982 | 90° | 70° | 80° | 1.42" | — |
| 1981 | 91° | 72° | 81° | 0.03" | — |
| 1980 | 93° | 69° | 81° | 0.41" | — |
| 1979 | 91° | 74° | 82° | — | — |
| 1978 | 88° | 71° | 79° | 0.08" | — |
| 1977 | 89° | 70° | 79° | 1.7" | — |
| 1976 | 95° | 73° | 84° | — | — |
| 1975 | 91° | 70° | 80° | — | — |
| 1974 | 92° | 70° | 81° | 0.15" | — |
| 1973 | 93° | 72° | 82° | — | — |
| 1972 | 89° | 72° | 80° | 0.46" | — |
| 1971 | 91° | 72° | 81° | 1.93" | — |
55 years of data from SANFORD