December is one of the cooler months of the year in Hialeah, with average highs near 23.7°C and lows around 17.6°C (mean 20.7°C). It is one of the drier months, averaging 44 mm of rainfall and 80% relative humidity across the period.
December is one of the cooler months of the year in Hialeah. Across 45 years of records, the warmest December in Hialeah was 2015 — when the month averaged 24.6°C — while the coldest was 2010 at 14.6°C. Typical December days reach 23.7°C with nights near 17.6°C. The long-term trend is warming, about 0.5°C per decade.
December is one of the drier months in Hialeah, averaging 44 mm of rainfall. The wettest December on record was 1997 with 145 mm, while the driest was 1981 at 7 mm.
Relative humidity in Hialeah during December averages 80%. The most humid Decembers were 1983 and 2015 at 84%, and the least humid was 2010 at 72%.
December receives about 3.4 kWh/m²/day of solar energy in Hialeah. The sunniest Decembers were 2010 and 2017 at 3.9 kWh/m²/day, and the cloudiest was 2023 at 2.8.
Average wind speed in Hialeah during December is 3.5 m/s. The windiest December was 1982 at 4.2 m/s, while the calmest was 2021 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.8°C | 20.3°C | 20.6°C | 21.5°C | 21.3°C | +1.5°C |
| Avg High | 22.9°C | 23.2°C | 23.8°C | 24.6°C | 24.4°C | +1.5°C |
| Avg Low | 16.6°C | 17.3°C | 17.5°C | 18.4°C | 18.2°C | +1.6°C |
| Avg Rain | 44 mm | 47 mm | 44 mm | 44 mm | 42 mm | -3 mm |
December temperatures in Hialeah have risen by about 2°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -1.9°C (1989) to a record high of 28.5°C (2018).
Rainfall in December is one of the drier months, averaging 44 mm, with a wettest year of 145 mm.
One of the best times to visit Hialeah
December is one of the best times to visit Hialeah. Expect days averaging 23.7°C and nights around 17.6°C (mean 20.7°C) — cooler than Hialeah's yearly average — with moderate rainfall (44 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 25.7°C | 22.5°C | 19.2°C | 28.2°C | 7.6°C | 26 mm | 79% | 3.1 m/s | — |
| 2024 | 24.3°C | 21.0°C | 17.8°C | 27.3°C | 11.1°C | 40 mm | 81% | 3.7 m/s | 3.5 |
| 2023 | 23.4°C | 20.9°C | 18.4°C | 28.4°C | 11.9°C | 83 mm | 82% | 3.9 m/s | 2.8 |
| 2022 | 24.1°C | 21.2°C | 18.3°C | 27.3°C | 5.8°C | 48 mm | 81% | 3.3 m/s | 3.3 |
| 2021 | 26.2°C | 23.1°C | 20.1°C | 28.0°C | 11.8°C | 19 mm | 80% | 2.6 m/s | 3.7 |
| 2020 | 22.7°C | 19.1°C | 15.6°C | 26.5°C | 7.1°C | 34 mm | 80% | 3.5 m/s | 3.7 |
| 2019 | 25.3°C | 22.2°C | 19.0°C | 28.2°C | 10.8°C | 88 mm | 80% | 3.9 m/s | 3.2 |
| 2018 | 24.5°C | 21.2°C | 18.0°C | 28.5°C | 10.8°C | 29 mm | 78% | 3.7 m/s | 3.5 |
| 2017 | 24.0°C | 20.7°C | 17.4°C | 27.5°C | 7.5°C | 19 mm | 79% | 2.7 m/s | 3.9 |
| 2016 | 26.1°C | 23.6°C | 21.1°C | 28.0°C | 14.0°C | 44 mm | 83% | 3.7 m/s | 3.6 |
| 2015 🔥 | 26.7°C | 24.6°C | 22.4°C | 28.1°C | 18.1°C | 125 mm | 84% | 3.7 m/s | 3 |
| 2014 | 24.6°C | 21.2°C | 17.7°C | 28.2°C | 10.0°C | 20 mm | 77% | 2.8 m/s | 3.6 |
| 2013 | 26.1°C | 23.5°C | 20.9°C | 28.0°C | 16.3°C | 30 mm | 80% | 3.7 m/s | 3.3 |
| 2012 | 24.8°C | 21.5°C | 18.3°C | 27.6°C | 8.1°C | 34 mm | 78% | 3.4 m/s | 3.5 |
| 2011 | 24.5°C | 21.7°C | 18.9°C | 26.5°C | 11.8°C | 27 mm | 78% | 3.5 m/s | 3.6 |
| 2010 ❄️ | 19.3°C | 14.6°C | 9.9°C | 26.8°C | 1.6°C | 22 mm | 72% | 3.6 m/s | 3.9 |
| 2009 | 24.3°C | 21.2°C | 18.2°C | 28.4°C | 7.2°C | 92 mm | 83% | 3.5 m/s | 3.1 |
| 2008 | 23.6°C | 20.6°C | 17.6°C | 25.7°C | 9.9°C | 15 mm | 79% | 3.3 m/s | 3.4 |
| 2007 | 25.8°C | 22.6°C | 19.5°C | 27.9°C | 9.5°C | 22 mm | 80% | 3.2 m/s | 3.6 |
| 2006 | 25.3°C | 22.9°C | 20.4°C | 27.5°C | 12.0°C | 53 mm | 79% | 4 m/s | 3 |
| 2005 | 22.9°C | 19.5°C | 16.0°C | 26.6°C | 9.0°C | 15 mm | 82% | 3.2 m/s | 3.6 |
| 2004 | 23.1°C | 19.8°C | 16.4°C | 27.8°C | 6.1°C | 21 mm | 76% | 3.7 m/s | 3.3 |
| 2003 | 21.9°C | 18.3°C | 14.7°C | 26.9°C | 6.2°C | 43 mm | 79% | 3.6 m/s | 3.3 |
| 2002 | 23.3°C | 19.6°C | 16.0°C | 27.1°C | 7.8°C | 84 mm | 82% | 3.6 m/s | 3.4 |
| 2001 | 24.8°C | 22.0°C | 19.3°C | 27.1°C | 9.3°C | 53 mm | 81% | 3.5 m/s | 3.3 |
| 2000 | 22.9°C | 19.7°C | 16.4°C | 27.4°C | 4.1°C | 39 mm | 77% | 4.1 m/s | 3.3 |
| 1999 | 23.2°C | 20.2°C | 17.1°C | 26.1°C | 8.5°C | 21 mm | 81% | 3.3 m/s | 3.3 |
| 1998 | 24.8°C | 22.1°C | 19.5°C | 26.5°C | 10.0°C | 41 mm | 80% | 3.5 m/s | 3.6 |
| 1997 🌧️ | 22.4°C | 19.3°C | 16.2°C | 26.5°C | 8.6°C | 145 mm | 83% | 3.6 m/s | 3.2 |
| 1996 | 23.5°C | 20.4°C | 17.3°C | 26.4°C | 5.6°C | 23 mm | 79% | 3.3 m/s | 3.5 |
| 1995 | 20.9°C | 18.0°C | 15.1°C | 25.9°C | 2.9°C | 23 mm | 82% | 3.5 m/s | 3.3 |
| 1994 | 23.7°C | 20.9°C | 18.2°C | 27.2°C | 10.3°C | 127 mm | 84% | 3.5 m/s | 3.3 |
| 1993 | 22.2°C | 18.6°C | 14.9°C | 25.8°C | 7.1°C | 22 mm | 81% | 3.4 m/s | 3.5 |
| 1992 | 23.5°C | 20.7°C | 17.9°C | 26.0°C | 9.0°C | 25 mm | 80% | 3.2 m/s | 3.2 |
| 1991 | 23.5°C | 20.9°C | 18.2°C | 26.9°C | 11.8°C | 18 mm | 82% | 3.6 m/s | 3.3 |
| 1990 | 24.5°C | 21.7°C | 19.0°C | 26.3°C | 10.2°C | 21 mm | 78% | 3.8 m/s | 3.4 |
| 1989 | 21.1°C | 17.1°C | 13.1°C | 26.0°C | -1.9°C | 30 mm | 77% | 3.2 m/s | 3.2 |
| 1988 | 23.4°C | 20.1°C | 16.8°C | 26.3°C | 5.9°C | 14 mm | 76% | 3.3 m/s | 3.4 |
| 1987 | 22.8°C | 19.7°C | 16.6°C | 26.1°C | 7.3°C | 34 mm | 79% | 3.6 m/s | 3.2 |
| 1986 | 24.9°C | 22.4°C | 19.8°C | 27.8°C | 13.7°C | 123 mm | 82% | 3.8 m/s | 2.9 |
| 1985 | 21.5°C | 18.0°C | 14.4°C | 26.5°C | 3.4°C | 49 mm | 78% | 3.5 m/s | 3 |
| 1984 | 24.0°C | 21.3°C | 18.7°C | 26.5°C | 8.0°C | 12 mm | 77% | 3.7 m/s | 3.3 |
| 1983 | 23.0°C | 20.0°C | 16.9°C | 27.1°C | -0.7°C | 102 mm | 84% | 3.7 m/s | — |
| 1982 | 23.4°C | 20.9°C | 18.4°C | 26.7°C | 6.5°C | 28 mm | 79% | 4.2 m/s | — |
| 1981 | 21.8°C | 18.3°C | 14.8°C | 27.0°C | 2.8°C | 7 mm | 77% | 3.4 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 23.7°C with lows near 17.6°C (mean 20.7°C), based on 45 years of NASA POWER data.
December averages 44 mm of rainfall in Hialeah, one of the drier months. The wettest on record was 145 mm in 1997.
The hottest December reached 28.5°C in 2018. The coldest dipped to -1.9°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 2°C. Daytime highs moved from 22.7°C to 24.7°C and overnight lows from 16.6°C to 18.8°C over the same span.
December is one of the cooler months of the year in Hialeah and one of the drier months, so plan for around 23.7°C daytime highs and 17.6°C at night.
Not quite — December is the 2nd coolest month in Hialeah, averaging 20.7°C.
For December in Hialeah, pack light layers you can adjust through the day, with typical highs of 23.7°C and lows of 17.6°C.
Relative humidity in December averages 80% — quite humid.
Average wind speed in December is 3.5 m/s. The windiest December on record averaged 4.2 m/s (1982).
The wettest December on record was 1997 with 145 mm. On average, December sees 44 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Hialeah behaves each December, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for December specifically, along with year-by-year records and how the month has changed over the decades.
