Climate averages 1991–2020
Deltona weather
in May.
A hot, moderately wet month: the joint 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Deltona: daytime highs average 29.8°C and nights cool to about 20.3°C. By daytime temperature it is the joint 4th warmest of the 12 months.
Expect about 81 mm of rain on roughly 10 days, which makes May a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 35 min on an average May day.
The nearest other city in this atlas is Alafaya (38 km away). In May its highs average 29.6°C, about as warm as Deltona, with 73 mm of rain.
Among the 498 cities listed in the United States, Deltona ranks joint 36th of 498 for the warmest May highs and joint 222nd of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; Deltona is 6.0°C warmer than that mean.
From May to June, average highs rise by 1.2°C to 31.0°C, and monthly rainfall rises from 81 mm to 161 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Deltona climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.2°C11.2°C | 11.2°C | 55 | 6.4 | 10.511 h |
| February | 21.8°C12.4°C | 12.4°C | 53 | 7.0 | 11.211 h |
| March | 24.1°C14.4°C | 14.4°C | 61 | 6.7 | 12.012 h |
| April | 26.9°C17.2°C | 17.2°C | 60 | 7.4 | 12.813 h |
| May, selected | 29.8°C20.3°C | 20.3°C | 81 | 10.1 | 13.614 h |
| June | 31.0°C23.1°C | 23.1°C | 161 | 20.3 | 14.014 h |
| July | 31.6°C24.1°C | 24.1°C | 170 | 23.7 | 13.814 h |
| August | 31.2°C24.2°C | 24.2°C | 186 | 23.9 | 13.213 h |
| September | 29.8°C23.1°C | 23.1°C | 146 | 19.2 | 12.412 h |
| October | 27.2°C20.0°C | 20.0°C | 75 | 10.4 | 11.511 h |
| November | 23.9°C15.9°C | 15.9°C | 37 | 6.3 | 10.711 h |
| December | 21.5°C13.0°C | 13.0°C | 53 | 6.1 | 10.310 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Alafaya in MayUnited States · 38 kmHigh 29.6°C · Low 20.2°C · 73 mm rain
- Daytona Beach in MayUnited States · 42 kmHigh 29.0°C · Low 20.7°C · 67 mm rain
- Orlando in MayUnited States · 42 kmHigh 30.0°C · Low 19.9°C · 69 mm rain
- Palm Coast in MayUnited States · 76 kmHigh 28.3°C · Low 21.0°C · 68 mm rain
- Melbourne, United States in MayUnited States · 111 kmHigh 28.1°C · Low 21.8°C · 69 mm rain
- Palm Bay in MayUnited States · 117 kmHigh 28.4°C · Low 21.8°C · 69 mm rain
- Lakeland in MayUnited States · 117 kmHigh 30.6°C · Low 20.1°C · 70 mm rain
- Spring Hill in MayUnited States · 132 kmHigh 30.1°C · Low 20.3°C · 73 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Deltona) is explained once on the Deltona year overview and on the Sources, method and limits page.