Weather on July 21
Deltona, FL
55 Years of Data
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.
| 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" | — |
Deltona, FL Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Deltona, FL Monthly Precipitation
Average rainfall per month, in inches.
Deltona, FL Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Deltona, FL
Deltona, FL has no months that meet our "pleasant" threshold — every season has tradeoffs.