Deltona, FL weather in May
In May, Deltona sees highs around 87°F and lows around 67°F: warm and often humid, with some rain. There are about 8 days with rain.
- Normal high
- 87°F
- Normal low
- 67°F
- Wet days
- 8
- 3.4 in total
- Muggy days
- 16
- dew point 65°F+
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 85°F | 89°F |
| Normal low | 64°F | 70°F |
| Chance of a wet day | 23% | 37% |
| Sunrise / sunset | 6:43 am / 8:00 pm | 6:27 am / 8:18 pm |
| Daylight | 13.3 h | 13.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical May day
- 6 am69°Fdew point 65°F
- 9 am78°Fdew point 66°F
- Noon84°Fdew point 63°F
- 3 pm85°Fdew point 62°F
- 6 pm81°Fdew point 63°F
- 9 pm74°Fdew point 65°F
NOAA hourly normals (local standard time) from Orlando Sanford Airport (8 mi away); average wind 8 mph; clear or few clouds in 58% of daytime hours, mostly cloudy or overcast in 26%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F2 of 31
- Hot dayshigh 90°F or more13 of 31
- Muggy daysdaily mean dew point 65°F or more16 of 31
- Wet daysat least 0.01 in of rain or melted snow8 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain in May
Normal precipitation is 3.4 in; a dry May brings about 1.7 in and a wet one about 4.3 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How May varies from year to year
- Warmest May, 1991-20201998: average high 92°F
- Coolest May1993: average high 84°F
- Wettest May2018: 8.4 in
- Driest May2000: 0.2 in
- Highest reading100°F (May 24, 1998)
- Lowest reading45°F (May 8, 1992)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 82°F | 87°F | 90°F |
| Normal low | 61°F | 67°F | 72°F |
| Wet days | 7 | 8 | 16 |
| Comfortable days | 7 | 2 | 0 |
| Daylight | 12.9 h | 13.6 h | 14.0 h |
Highs change by +5°F from April and +3°F into June.
How Deltona ranks in May
- Normal high32nd warmest of 378 cities; 9th of 23 in Florida
- Wet days150th driest of 378
- Comfortable days304th most of 339
What to pack for Deltona in May
- Light, breathable clothing – highs near 87°F and about 16 muggy days
- A rain jacket or umbrella – rain on about 8 days
Heating and cooling
May has 1 heating degree days and 372 cooling degree days (base 65°F), 9% of the year's total heating and cooling demand.
Questions
How hot is Deltona in May?
The normal high is 87°F and the normal low is 67°F. From 1991 to 2020 the hottest May reading was 100°F (most recently on May 24, 1998).
Does it rain a lot in Deltona in May?
About 8 days in May have at least 0.01 in of precipitation, and the normal total is 3.4 in. The wettest May in 1991-2020 was in 2018 (8.4 in); the driest was in 2000 (0.2 in).
Is May a good time to visit Deltona?
May ranks 8th of 12 months on our comfort score for Deltona (46 out of 100). It has about 2 comfortable days and about 13 days at 90°F or hotter. The best months are January, February and March.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Sanford (USC00087982), 6.0 mi S of the city center, 12 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Orlando Sanford Airport (USW00012854), 8.4 mi S of the city center, 55 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: Orlando Executive Airport (USW00012841), 25 mi S of the city center, 108 ft (76 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Orlando Sanford Airport (722057-12854), 8.4 mi S of the city center, 49 ft . Hourly observations, 1991-2020.