Michael D Beckwith / CC BY 2.0
Deltona, FL Weather on August 17
August 17th in Deltona, FL typically brings hot summer weather, with average highs around 92°F and lows near 74°F. Over 55 years of records, the warmest August 17th was in 1980 (87°F average), while the coldest was 1972 (79°F) — a 8°F range across recorded history. Rain or other precipitation has occurred on about 49% of August 17th dates historically, with the wettest August 17th recording 2.35" of rain. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
What to Expect on August 17
Planning for August 17th in Deltona, FL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
August 17 Weather Records for Deltona
- •The all-time record high for August 17th in Deltona, FL is 98°F, set in 2011.
- •The coldest August 17th on record dropped to 67°F in 1989.
- •Temperatures have reached 90°F or higher on August 17th in 48 of the last 55 years.
Frequently Asked Questions
What was the warmest August 17 ever in Deltona?
The warmest August 17 in Deltona, FL reached 98°F in 2011. That is 6°F above the long-term average high of 92°F.
What was the coldest August 17 ever in Deltona?
The coldest August 17 in Deltona, FL dropped to 67°F in 1989. That is 7°F below the long-term average low of 74°F.
What is the average temperature on August 17 in Deltona?
On August 17, Deltona averages a high of 92°F and a low of 74°F based on 55 years of NOAA weather observations from SANFORD.
How many years of weather data are available for August 17 in Deltona?
We have 55 years of weather records for August 17 in Deltona, FL, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
August 17 Weather History in Deltona
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 96°F | 77°F | 0" | -- |
| 2024 | 91°F | 74°F | 0" | -- |
| 2023 | 97°F | 77°F | 0.19" | -- |
| 2022 | 95°F | 76°F | 0" | -- |
| 2021 | 88°F | 77°F | 0.34" | -- |
| 2020 | 96°F | 78°F | 0" | -- |
| 2019 | 88°F | 75°F | 0.02" | -- |
| 2018 | 94°F | 76°F | 0" | -- |
| 2017 | 94°F | 77°F | 0.01" | -- |
| 2016 | 92°F | 77°F | 0.98" | -- |
| 2015 | 88°F | 74°F | 1.2" | -- |
| 2014 | 91°F | 74°F | 0.3" | -- |
| 2013 | 93°F | 77°F | 0.11" | -- |
| 2012 | 92°F | 73°F | 0.03" | -- |
| 2011 | 98°F | 76°F | 0.31" | -- |
| 2010 | 95°F | 78°F | 0.11" | -- |
| 2009 | 92°F | 75°F | 0" | -- |
| 2008 | 87°F | 73°F | 0.23" | -- |
| 2007 | 92°F | 72°F | 0" | -- |
| 2006 | 94°F | 73°F | 0" | -- |
| 2005 | 96°F | 78°F | 0" | -- |
| 2004 | 92°F | 72°F | 0.01" | -- |
| 2003 | 90°F | 73°F | 0.07" | -- |
| 2002 | 92°F | 77°F | 0.03" | -- |
| 2001 | 91°F | 76°F | 1.18" | -- |
| 2000 | 92°F | 70°F | 0" | -- |
| 1999 | 95°F | 72°F | 0" | -- |
| 1998 | 95°F | 76°F | 0.26" | -- |
| 1997 | 97°F | 76°F | 0.15" | -- |
| 1996 | 93°F | 68°F | 1" | -- |
| 1995 | 92°F | 73°F | 0" | -- |
| 1994 | 91°F | 72°F | 0.02" | -- |
| 1993 | 91°F | 69°F | 0" | -- |
| 1992 | 90°F | 71°F | 0.17" | -- |
| 1991 | 92°F | 76°F | 0" | -- |
| 1990 | 93°F | 71°F | 0" | -- |
| 1989 | 93°F | 67°F | 0" | -- |
| 1988 | 88°F | 71°F | 0.25" | -- |
| 1987 | 94°F | 72°F | 0.36" | -- |
| 1986 | 91°F | 75°F | 0" | -- |
| 1985 | 90°F | 74°F | -- | -- |
| 1984 | 93°F | 74°F | 0" | -- |
| 1983 | 92°F | 73°F | 0" | -- |
| 1982 | 89°F | 71°F | 0" | -- |
| 1981 | 91°F | 75°F | 0" | -- |
| 1980 | 95°F | 78°F | 0" | -- |
| 1979 | 90°F | 72°F | 0" | -- |
| 1978 | 93°F | 72°F | 0" | -- |
| 1977 | 91°F | 71°F | 0" | -- |
| 1976 | 91°F | 71°F | 0.02" | -- |
| 1975 | 93°F | 71°F | -- | -- |
| 1974 | 95°F | 72°F | 0.51" | -- |
| 1973 | 93°F | 72°F | 0.36" | -- |
| 1972 | 89°F | 69°F | 2.35" | -- |
| 1971 | 95°F | 72°F | 0" | -- |
Based on 55 years of data from NOAA station: SANFORD
Monthly Climate Averages
Historical temperature and precipitation averages for Deltona, FL, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.