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Weather & Climate in Deltona, FL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Deltona has a warm climate with an average annual temperature of 73°F (23°C). Winters average 62°F in January while summers reach 82°F in July. The area gets 325 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 52.3 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 39 feet.
Temperature
62°F Jan (16°C)
82°F Jul (28°C)
| Annual Average | 72.6°F |
| 34% above US avg | |
| January Average | 62°F (16°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 325 days/yr |
Geography
| Elevation | 39 ft (12 m) |
| Area | 40.8 sq mi (105.6 km²) |
| Population Density | 2,564/sq mi |
| Coordinates | 28.9051°N, 81.2110°W |
| Timezone | America/New_York |
| County | Seminole County County |
| Nearest Airport | Orlando Sanford International (SFB) 9 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 91.4 / 100 |
| Social Vulnerability | 15.3 / 100 |
| Community Resilience | 59.7 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively High |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | No Rating |
| Lightning | Relatively High |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | No Rating |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Hurricane History
24 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Milton | Category 4 | 132 mph | 86 km |
| 2024 | Helene | Category 4 | 138 mph | 265 km |
| 2024 | Debby | Category 1 | 81 mph | 239 km |
| 2023 | Idalia | Category 4 | 132 mph | 253 km |
| 2022 | Ian | Category 5 | 155 mph | 108 km |
| 2022 | Nicole | Category 1 | 75 mph | 170 km |
| 2020 | Isaias | Category 1 | 75 mph | 294 km |
| 2019 | Dorian | Category 5 | 155 mph | 170 km |
| 2017 | Irma | Category 1 | 92 mph | 124 km |
| 2016 | Matthew | Category 4 | 132 mph | 74 km |
| 2014 | Arthur | Category 1 | 81 mph | 236 km |
| 2005 | Wilma | Category 3 | 121 mph | 248 km |
| 2005 | Ophelia | Category 1 | 75 mph | 189 km |
| 2004 | Charley | Category 4 | 150 mph | 22 km |
| 2004 | Jeanne | Category 3 | 121 mph | 127 km |
| 2004 | Frances | Category 2 | 109 mph | 145 km |
| 2000 | Gordon | Category 1 | 75 mph | 272 km |
| 1999 | Floyd | Category 3 | 127 mph | 229 km |
| 1999 | Dennis | Category 2 | 104 mph | 294 km |
| 1999 | Irene | Category 1 | 75 mph | 132 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
525 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 69 fatalities, 751 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Feb 2, 2007 | EF3 | 82 km | 16.2 mi | 8 |
| Feb 2, 2007 | EF3 | 37 km | 26.0 mi | 13 |
| Feb 22, 1998 | EF3 | 27 km | 16.0 mi | 13 |
| Feb 22, 1998 | EF3 | 69 km | 18.0 mi | 3 |
| Feb 22, 1998 | EF3 | 80 km | 28.0 mi | 25 |
| Nov 1, 1997 | EF3 | 30 km | 3.0 mi | 0 |
| Mar 19, 1981 | EF3 | 49 km | 8.0 mi | 0 |
| Dec 31, 1975 | EF3 | 95 km | 2.0 mi | 1 |
| Jun 19, 1972 | EF3 | 82 km | 3.8 mi | 0 |
| Jun 19, 1972 | EF3 | 80 km | 4.9 mi | 0 |
| Mar 5, 1970 | EF3 | 51 km | 1.9 mi | 0 |
| Oct 12, 2023 | EF2 | 74 km | 1.0 mi | 0 |
| Aug 18, 2020 | EF2 | 19 km | 4.6 mi | 0 |
| Sep 10, 2017 | EF2 | 91 km | 1.2 mi | 0 |
| Sep 10, 2017 | EF2 | 44 km | 1.6 mi | 0 |
| Dec 25, 2006 | EF2 | 16 km | 2.8 mi | 0 |
| Dec 25, 2006 | EF2 | 34 km | 2.7 mi | 0 |
| Feb 22, 1998 | EF2 | 31 km | 8.0 mi | 1 |
| Feb 22, 1998 | EF2 | 28 km | 5.0 mi | 0 |
| Oct 7, 1996 | EF2 | 33 km | 6.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (121,213 acres, 1998).
| Year | Name | Acres Burned | Distance |
| 1998 | UNNAMED | 121,213 | 32 km |
| 1998 | UNNAMED | 45,954 | 32 km |
| 1998 | UNNAMED | 24,956 | 77 km |
| 1985 | UNNAMED | 19,129 | 35 km |
| 2011 | IRON HORSE | 18,234 | 31 km |
| 2001 | STAGECOACH COMPLEX | 14,079 | 90 km |
| 2006 | JUNIPER | 11,998 | 58 km |
| 1998 | UNNAMED | 9,972 | 19 km |
| 1985 | UNNAMED | 9,807 | 68 km |
| 1998 | UNNAMED | 9,705 | 34 km |
| 1985 | UNNAMED | 9,554 | 58 km |
| 1993 | UNNAMED | 9,422 | 46 km |
| 1985 | UNNAMED | 8,382 | 21 km |
| 2009 | JUNIPER SPRINGS | 8,363 | 59 km |
| 1984 | UNNAMED | 7,765 | 95 km |
| 1998 | UNNAMED | 7,345 | 95 km |
| 2017 | NORTH CANE | 7,024 | 45 km |
| 1989 | UNNAMED | 6,985 | 90 km |
| 2007 | UNNAMED | 6,345 | 44 km |
| 1993 | UNNAMED | 6,236 | 90 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 62°F (16°C) | 2.6 in | |
| February | 60°F (16°C) | 3.3 in | Coldest |
| March | 65°F (18°C) | 3.6 in | |
| April | 69°F (21°C) | 2.3 in | |
| May | 75°F (24°C) | 3.5 in | |
| June | 80°F (26°C) | 6.4 in | |
| July | 82°F (28°C) | 7.1 in | Warmest |
| August | 81°F (27°C) | 7.2 in | Wettest |
| September | 80°F (26°C) | 6.7 in | |
| October | 73°F (23°C) | 3.7 in | |
| November | 66°F (19°C) | 2.3 in | |
| December | 60°F (16°C) | 2.1 in | Driest |
Deltona has a seasonal temperature swing of 22°F / from 60°F in February to 82°F in July. Total annual precipitation is 50.7 inches, with August being the wettest month (7.2") and December the driest (2.1").