Deltona, FL climate
Deltona has warm winters and warm summers, with plenty of rain. A typical July afternoon reaches 92°, a January night drops to 49°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Deltona feels like
Winter
Spring
Summer
Fall
Deltona weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 70° | 49° | 2.8" | 0 | 8 | 0 | 53° – 65° |
| February | 73° | 51° | 2.3" | 0 | 7 | 0 | 53° – 70° |
| March | 78° | 55° | 3.3" | 0 | 7 | 0 | 60° – 72° |
| April | 83° | 60° | 2.5" | 0 | 7 | 0 | 66° – 76° |
| May | 87° | 66° | 3.5" | 0 | 8 | 0 | 73° – 80° |
| June | 90° | 71° | 7.9" | 0 | 16 | 0 | 79° – 85° |
| July | 92° | 73° | 7.2" | 0 | 16 | 0 | 81° – 85° |
| August | 92° | 74° | 7.3" | 0 | 18 | 0 | 81° – 85° |
| September | 89° | 72° | 6.7" | 0 | 14 | 0 | 78° – 83° |
| October | 84° | 66° | 4.0" | 0 | 9 | 0 | 71° – 79° |
| November | 77° | 58° | 2.2" | 0 | 7 | 0 | 63° – 74° |
| December | 72° | 52° | 2.4" | 0 | 7 | 0 | 50° – 71° |
| Year | 82° | 62° | 52.0" | 0.0" | 124 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Deltona
Deltona gets 52 inches of rain and melted snow a year. June is the wettest month and November the driest. Rain or snow falls on about 124 days a year.
A year-round growing season
Heating and cooling a home in Deltona
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Deltona, 15% of that work is heating and 85% is cooling, so air conditioning is the bigger bill.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Deltona and its neighbors
Deltona borders 3 towns with climate data. January nights across them vary by 0.8°. DeLand has the coldest January nights (48°) and Orange City the hottest July afternoons (92°). Deltona’s January low is 49° and its July high 92°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Deltona compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Deltona averaged 1.6° warmer than the 1900s. The biggest change is in December (+2.4°). The shift is larger than in 73% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Deltona’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 50° to 71°. August is the most reliable, staying within 4°.
Common questions about Deltona’s climate
What is the coldest month in Deltona?
January, with a typical high of 70° and a low of 49°.
What is the hottest month in Deltona?
July, with a typical high of 92° and a low of 73°. About 109 days a year reach 90°.
How much snow does Deltona get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Deltona?
Frost is uncommon. Only 51% of years see a night at 32° or below.
What is the rainiest month in Deltona?
June, with 7.9 inches of rain and melted snow. The year totals 52 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Deltona itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Sanford, FL (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.