Climate averages 1991–2020
Melbourne, United States weather
in December.
A warm, moderately wet month: the 10th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Melbourne, United States: daytime highs average 22.0°C and nights cool to about 16.3°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 45 mm of rain on roughly 7 days, which makes December a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 24 min on an average December day.
The nearest other city in this atlas is Palm Bay (6 km away). In December its highs average 22.2°C, about as warm as Melbourne, United States, with 45 mm of rain.
Among the 498 cities listed in the United States, Melbourne, United States ranks 27th of 498 for the warmest December highs and joint 99th of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; Melbourne, United States is 11.4°C warmer than that mean.
From December to January, average highs fall by 1.2°C to 20.8°C, and monthly rainfall rises from 45 mm to 57 mm.
The annual picture
December 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
Melbourne, United States climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.8°C14.3°C | 14.3°C | 57 | 6.9 | 10.611 h |
| February | 21.9°C15.2°C | 15.2°C | 49 | 6.9 | 11.211 h |
| March | 23.7°C16.8°C | 16.8°C | 57 | 6.9 | 12.012 h |
| April | 25.9°C19.2°C | 19.2°C | 49 | 6.9 | 12.813 h |
| May | 28.1°C21.8°C | 21.8°C | 69 | 9.3 | 13.514 h |
| June | 29.6°C24.1°C | 24.1°C | 132 | 18.3 | 13.914 h |
| July | 30.3°C24.8°C | 24.8°C | 118 | 19.8 | 13.714 h |
| August | 30.1°C25.0°C | 25.0°C | 142 | 22.4 | 13.113 h |
| September | 28.9°C24.5°C | 24.5°C | 149 | 20.0 | 12.312 h |
| October | 26.8°C22.3°C | 22.3°C | 97 | 12.5 | 11.512 h |
| November | 24.0°C18.9°C | 18.9°C | 48 | 7.6 | 10.811 h |
| December, selected | 22.0°C16.3°C | 16.3°C | 45 | 6.8 | 10.410 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
December in nearby cities
- Palm Bay in DecemberUnited States · 6 kmHigh 22.2°C · Low 16.4°C · 45 mm rain
- Alafaya in DecemberUnited States · 80 kmHigh 21.7°C · Low 13.2°C · 49 mm rain
- Orlando in DecemberUnited States · 91 kmHigh 21.8°C · Low 12.7°C · 50 mm rain
- Port Saint Lucie in DecemberUnited States · 91 kmHigh 23.2°C · Low 16.6°C · 41 mm rain
- Deltona in DecemberUnited States · 111 kmHigh 21.5°C · Low 13.0°C · 53 mm rain
- Daytona Beach in DecemberUnited States · 132 kmHigh 21.2°C · Low 14.0°C · 59 mm rain
- Lakeland in DecemberUnited States · 132 kmHigh 22.3°C · Low 12.9°C · 46 mm rain
- West Palm Beach in DecemberUnited States · 162 kmHigh 23.6°C · Low 18.0°C · 42 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 Melbourne) is explained once on the Melbourne, United States year overview and on the Sources, method and limits page.
Palm Bay lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.