December is one of the cooler months of the year in Tallahassee, with average highs near 18.1°C and lows around 6°C (mean 12.1°C). It is one of the drier months, averaging 104 mm of rainfall and 82% relative humidity across the period.
December is one of the cooler months of the year in Tallahassee. Across 45 years of records, the warmest December in Tallahassee was 2021 — when the month averaged 17°C — while the coldest was 1989 at 6.7°C. Typical December days reach 18.1°C with nights near 6°C. The long-term trend is warming, about 0.5°C per decade.
December is one of the drier months in Tallahassee, averaging 104 mm of rainfall. The wettest December on record was 2018 with 299 mm, while the driest was 1984 at 20 mm.
Relative humidity in Tallahassee during December averages 82%. The most humid December was 1986 at 90%, and the least humid was 2010 at 70%.
December receives about 2.8 kWh/m²/day of solar energy in Tallahassee. The sunniest Decembers were 2003 and 2010 at 3.3 kWh/m²/day, and the cloudiest were 1986 and 2009 at 2.2.
Average wind speed in Tallahassee during December is 0.3 m/s. The windiest Decembers were 2020, 2022 and 2025, among others at 0.3 m/s, while the calmest were 2021, 2023 and 2024, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.2°C | 11.9°C | 11.4°C | 13.1°C | 12.8°C | +1.6°C |
| Avg High | 17.1°C | 17.8°C | 17.7°C | 19.0°C | 19.0°C | +1.9°C |
| Avg Low | 5.3°C | 6.1°C | 5.1°C | 7.2°C | 6.6°C | +1.3°C |
| Avg Rain | 115 mm | 76 mm | 100 mm | 133 mm | 93 mm | -22 mm |
December temperatures in Tallahassee have risen by about 1.6°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -10°C (1989) to a record high of 29.5°C (2001).
Rainfall in December is one of the drier months, averaging 104 mm, with a wettest year of 299 mm.
A quieter season to visit Tallahassee
If your dates are flexible, the more temperate months of October and May tend to be the most comfortable for visiting Tallahassee. That said, December — with days averaging 18.1°C and nights around 6°C (mean 12.1°C) and higher rainfall (104 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 18.8°C | 12.4°C | 5.9°C | 26.4°C | -3.1°C | 103 mm | 79% | 0.3 m/s | — |
| 2024 | 19.3°C | 12.5°C | 5.7°C | 27.0°C | -2.6°C | 43 mm | 78% | 0.2 m/s | 3.1 |
| 2023 | 17.0°C | 11.5°C | 6.1°C | 23.7°C | -1.3°C | 212 mm | 87% | 0.2 m/s | 2.8 |
| 2022 | 19.5°C | 13.1°C | 6.8°C | 28.6°C | -6.6°C | 58 mm | 77% | 0.3 m/s | 3 |
| 2021 🔥 | 22.7°C | 17.0°C | 11.3°C | 27.8°C | 0.0°C | 56 mm | 87% | 0.2 m/s | 2.5 |
| 2020 | 16.9°C | 10.2°C | 3.5°C | 22.3°C | -5.1°C | 83 mm | 81% | 0.3 m/s | 3.1 |
| 2019 | 19.5°C | 13.7°C | 8.0°C | 26.2°C | -2.3°C | 115 mm | 83% | 0.2 m/s | 2.7 |
| 2018 🌧️ | 17.5°C | 12.5°C | 7.6°C | 26.3°C | -2.5°C | 299 mm | 89% | 0.2 m/s | 2.4 |
| 2017 | 18.7°C | 12.7°C | 6.7°C | 27.1°C | -2.3°C | 66 mm | 80% | 0.3 m/s | 2.6 |
| 2016 | 20.3°C | 14.4°C | 8.5°C | 25.7°C | -2.4°C | 176 mm | 81% | 0.2 m/s | 2.8 |
| 2015 | 21.8°C | 16.7°C | 11.6°C | 26.6°C | -0.4°C | 170 mm | 88% | 0.2 m/s | 2.6 |
| 2014 | 18.5°C | 12.9°C | 7.4°C | 24.8°C | -0.7°C | 196 mm | 88% | 0.2 m/s | 2.9 |
| 2013 | 19.5°C | 13.4°C | 7.3°C | 26.3°C | -2.7°C | 104 mm | 85% | 0.2 m/s | 2.6 |
| 2012 | 20.1°C | 13.7°C | 7.3°C | 26.6°C | -2.8°C | 99 mm | 80% | 0.3 m/s | 2.7 |
| 2011 | 20.2°C | 13.9°C | 7.6°C | 26.0°C | -0.1°C | 66 mm | 80% | 0.2 m/s | 2.9 |
| 2010 | 13.8°C | 6.9°C | -0.1°C | 23.5°C | -6.1°C | 45 mm | 70% | 0.3 m/s | 3.3 |
| 2009 | 15.8°C | 10.7°C | 5.5°C | 25.7°C | -2.5°C | 257 mm | 87% | 0.2 m/s | 2.2 |
| 2008 | 18.6°C | 12.5°C | 6.3°C | 24.5°C | -2.2°C | 59 mm | 86% | 0.3 m/s | 2.9 |
| 2007 | 21.3°C | 14.6°C | 7.9°C | 27.8°C | -1.6°C | 76 mm | 79% | 0.3 m/s | 2.9 |
| 2006 | 19.9°C | 13.7°C | 7.6°C | 26.2°C | -5.4°C | 125 mm | 79% | 0.2 m/s | 2.8 |
| 2005 | 15.8°C | 9.7°C | 3.6°C | 25.2°C | -4.7°C | 110 mm | 83% | 0.3 m/s | 2.9 |
| 2004 | 15.5°C | 9.7°C | 3.9°C | 25.5°C | -5.2°C | 92 mm | 83% | 0.2 m/s | 2.9 |
| 2003 | 16.0°C | 9.1°C | 2.1°C | 21.1°C | -4.1°C | 58 mm | 80% | 0.2 m/s | 3.3 |
| 2002 | 15.9°C | 9.9°C | 3.8°C | 22.4°C | -2.1°C | 134 mm | 85% | 0.3 m/s | 2.9 |
| 2001 | 22.1°C | 15.4°C | 8.7°C | 29.5°C | -2.1°C | 25 mm | 72% | 0.2 m/s | 2.8 |
| 2000 | 15.8°C | 8.9°C | 2.0°C | 26.4°C | -7.0°C | 64 mm | 74% | 0.3 m/s | 2.8 |
| 1999 | 18.7°C | 11.7°C | 4.7°C | 26.9°C | -3.2°C | 55 mm | 74% | 0.3 m/s | 2.9 |
| 1998 | 20.1°C | 14.2°C | 8.3°C | 26.1°C | -1.0°C | 50 mm | 84% | 0.3 m/s | 2.6 |
| 1997 | 15.7°C | 10.5°C | 5.3°C | 25.3°C | -4.0°C | 119 mm | 88% | 0.3 m/s | 2.6 |
| 1996 | 17.2°C | 11.4°C | 5.6°C | 24.8°C | -6.3°C | 136 mm | 87% | 0.3 m/s | 3 |
| 1995 | 15.9°C | 10.0°C | 4.1°C | 24.3°C | -5.4°C | 67 mm | 81% | 0.3 m/s | 2.7 |
| 1994 | 17.8°C | 12.6°C | 7.4°C | 23.6°C | -0.4°C | 70 mm | 88% | 0.2 m/s | 2.6 |
| 1993 | 15.0°C | 9.4°C | 3.8°C | 23.4°C | -4.1°C | 82 mm | 83% | 0.3 m/s | 2.8 |
| 1992 | 17.7°C | 12.0°C | 6.4°C | 24.1°C | -0.5°C | 45 mm | 88% | 0.2 m/s | 2.6 |
| 1991 | 19.2°C | 12.8°C | 6.4°C | 28.3°C | -2.5°C | 56 mm | 78% | 0.3 m/s | 2.8 |
| 1990 | 20.8°C | 14.7°C | 8.5°C | 26.1°C | -2.7°C | 84 mm | 78% | 0.3 m/s | 2.6 |
| 1989 ❄️ | 12.4°C | 6.7°C | 1.0°C | 22.6°C | -10.0°C | 162 mm | 84% | 0.3 m/s | 2.7 |
| 1988 | 18.3°C | 11.4°C | 4.5°C | 24.8°C | -5.0°C | 36 mm | 76% | 0.3 m/s | 3 |
| 1987 | 19.0°C | 12.9°C | 6.8°C | 26.6°C | -2.9°C | 32 mm | 80% | 0.3 m/s | 2.8 |
| 1986 | 16.3°C | 11.4°C | 6.6°C | 23.5°C | -0.7°C | 172 mm | 90% | 0.2 m/s | 2.2 |
| 1985 | 14.8°C | 8.6°C | 2.5°C | 22.9°C | -7.3°C | 134 mm | 83% | 0.2 m/s | 3.1 |
| 1984 | 23.6°C | 16.8°C | 10.0°C | 27.2°C | -3.9°C | 20 mm | 78% | 0.3 m/s | 2.8 |
| 1983 | 14.4°C | 9.1°C | 3.8°C | 23.7°C | -9.8°C | 175 mm | 82% | 0.3 m/s | — |
| 1982 | 19.2°C | 13.9°C | 8.6°C | 27.0°C | -2.0°C | 162 mm | 86% | 0.2 m/s | — |
| 1981 | 16.1°C | 9.9°C | 3.8°C | 24.7°C | -6.9°C | 143 mm | 78% | 0.3 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 18.1°C with lows near 6°C (mean 12.1°C), based on 45 years of NASA POWER data.
December averages 104 mm of rainfall in Tallahassee, one of the drier months. The wettest on record was 299 mm in 2018.
The hottest December reached 29.5°C in 2001. The coldest dipped to -10°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 1.6°C. Daytime highs moved from 17.6°C to 19.5°C and overnight lows from 5.7°C to 7.2°C over the same span.
December is one of the cooler months of the year in Tallahassee and one of the drier months, so plan for around 18.1°C daytime highs and 6°C at night.
Not quite — December is the 2nd coolest month in Tallahassee, averaging 12.1°C.
For December in Tallahassee, pack warm layers and a jacket for chilly mornings, with typical highs of 18.1°C and lows of 6°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 82% — quite humid.
Average wind speed in December is 0.3 m/s. The windiest December on record averaged 0.3 m/s (1981).
The wettest December on record was 2018 with 299 mm. On average, December sees 104 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 Tallahassee 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.
