December is one of the cooler months of the year in Laredo, with average highs near 21.2°C and lows around 8.5°C (mean 14.9°C). It is one of the drier months, averaging 27 mm of rainfall and 67% relative humidity across the period.
December is one of the cooler months of the year in Laredo. Across 45 years of records, the warmest December in Laredo was 2021 — when the month averaged 20.6°C — while the coldest was 1989 at 8.5°C. Typical December days reach 21.2°C with nights near 8.5°C. The long-term trend is warming, about 0.7°C per decade.
December is one of the drier months in Laredo, averaging 27 mm of rainfall. The wettest December on record was 1991 with 123 mm, while the driest were 2007 and 2010 at 2 mm.
Relative humidity in Laredo during December averages 67%. The most humid December was 2014 at 79%, and the least humid was 2020 at 54%.
December receives about 2.9 kWh/m²/day of solar energy in Laredo. The sunniest December was 2020 at 3.8 kWh/m²/day, and the cloudiest was 1992 at 2.
Average wind speed in Laredo during December is 2.6 m/s. The windiest Decembers were 1984 and 2007 at 3 m/s, while the calmest was 1985 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.5°C | 14.9°C | 13.9°C | 15.2°C | 17.5°C | +4°C |
| Avg High | 19.8°C | 21.0°C | 20.3°C | 21.6°C | 24.2°C | +4.4°C |
| Avg Low | 7.3°C | 8.8°C | 7.5°C | 8.9°C | 10.9°C | +3.6°C |
| Avg Rain | 27 mm | 34 mm | 27 mm | 29 mm | 9 mm | -18 mm |
December temperatures in Laredo have risen by about 4.1°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -8.7°C (1989) to a record high of 33.3°C (2024).
Rainfall in December is one of the drier months, averaging 27 mm, with a wettest year of 123 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.8°C per decade while lows rose 0.6°C per decade, widening the gap between day and night.
A good time to visit Laredo
December is a good time to visit Laredo, with days averaging 21.2°C and nights around 8.5°C (mean 14.9°C, cooler than Laredo's yearly average) and low rainfall. March and October are marginally more temperate, but December still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 24.4°C | 18.0°C | 11.7°C | 31.2°C | 5.8°C | 6 mm | 65% | 2.2 m/s | — |
| 2024 | 25.2°C | 18.8°C | 12.4°C | 33.3°C | 2.5°C | 11 mm | 62% | 2.5 m/s | 3 |
| 2023 | 23.2°C | 16.7°C | 10.3°C | 28.5°C | 3.7°C | 13 mm | 70% | 2.2 m/s | 3.1 |
| 2022 | 22.3°C | 16.0°C | 9.6°C | 29.6°C | -5.1°C | 7 mm | 69% | 2.5 m/s | 2.8 |
| 2021 🔥 | 27.4°C | 20.6°C | 13.9°C | 32.9°C | 5.8°C | 4 mm | 69% | 2.5 m/s | 3.3 |
| 2020 | 22.6°C | 14.9°C | 7.3°C | 28.9°C | 1.9°C | 16 mm | 54% | 2.9 m/s | 3.8 |
| 2019 | 23.2°C | 15.9°C | 8.6°C | 31.1°C | 0.6°C | 18 mm | 59% | 2.3 m/s | 3.5 |
| 2018 | 21.0°C | 14.5°C | 8.0°C | 27.7°C | 3.4°C | 22 mm | 69% | 2.7 m/s | 3.2 |
| 2017 | 19.3°C | 13.6°C | 7.8°C | 30.1°C | 0.5°C | 60 mm | 74% | 2.2 m/s | 2.4 |
| 2016 | 21.4°C | 15.8°C | 10.3°C | 29.9°C | -2.1°C | 57 mm | 75% | 2.5 m/s | 2.2 |
| 2015 | 23.7°C | 16.8°C | 10.0°C | 32.2°C | 3.9°C | 7 mm | 66% | 2.7 m/s | 3.2 |
| 2014 | 21.0°C | 15.8°C | 10.6°C | 27.0°C | 3.1°C | 37 mm | 79% | 2.7 m/s | 2.2 |
| 2013 | 19.3°C | 13.0°C | 6.8°C | 31.9°C | 0.9°C | 29 mm | 69% | 2.3 m/s | 2.8 |
| 2012 | 24.2°C | 17.5°C | 10.8°C | 31.7°C | 1.9°C | 4 mm | 56% | 2.8 m/s | 3.1 |
| 2011 | 20.1°C | 14.2°C | 8.3°C | 28.0°C | -0.9°C | 58 mm | 69% | 2.9 m/s | 2.7 |
| 2010 | 22.8°C | 15.1°C | 7.5°C | 29.3°C | -0.4°C | 2 mm | 54% | 2.8 m/s | 3.7 |
| 2009 | 16.6°C | 11.0°C | 5.4°C | 28.1°C | -2.1°C | 56 mm | 76% | 2.4 m/s | 2.6 |
| 2008 | 22.1°C | 15.1°C | 8.1°C | 29.8°C | 1.4°C | 7 mm | 61% | 2.8 m/s | 3.1 |
| 2007 | 23.9°C | 16.8°C | 9.7°C | 31.6°C | 0.3°C | 2 mm | 56% | 3 m/s | 3.5 |
| 2006 | 20.2°C | 14.1°C | 8.1°C | 27.4°C | 0.7°C | 64 mm | 69% | 2.7 m/s | 2.6 |
| 2005 | 21.7°C | 14.9°C | 8.1°C | 30.1°C | 1.6°C | 5 mm | 61% | 2.4 m/s | 3 |
| 2004 | 20.5°C | 13.7°C | 6.9°C | 28.1°C | -3.3°C | 5 mm | 66% | 2.5 m/s | 3.2 |
| 2003 | 20.8°C | 14.1°C | 7.4°C | 26.2°C | -0.5°C | 2 mm | 66% | 2.8 m/s | 3.7 |
| 2002 | 19.7°C | 13.6°C | 7.4°C | 26.9°C | 1.0°C | 46 mm | 75% | 2.6 m/s | 3.3 |
| 2001 | 20.4°C | 14.4°C | 8.5°C | 27.4°C | 1.3°C | 59 mm | 73% | 2.7 m/s | 3 |
| 2000 | 17.3°C | 11.1°C | 5.0°C | 25.5°C | -0.3°C | 27 mm | 74% | 2.5 m/s | 2.7 |
| 1999 | 21.7°C | 14.5°C | 7.4°C | 29.4°C | 0.4°C | 20 mm | 56% | 2.7 m/s | 3.4 |
| 1998 | 20.3°C | 14.2°C | 8.2°C | 29.5°C | -0.9°C | 29 mm | 73% | 2.6 m/s | 3.1 |
| 1997 | 19.9°C | 13.0°C | 6.1°C | 27.4°C | -2.3°C | 21 mm | 63% | 2.9 m/s | 3.3 |
| 1996 | 21.9°C | 15.1°C | 8.2°C | 29.4°C | -4.4°C | 12 mm | 68% | 2.4 m/s | 3.2 |
| 1995 | 20.1°C | 14.1°C | 8.2°C | 27.9°C | -1.0°C | 14 mm | 73% | 2.2 m/s | 2.9 |
| 1994 | 22.6°C | 17.0°C | 11.4°C | 32.0°C | 2.5°C | 60 mm | 74% | 2.5 m/s | 2.3 |
| 1993 | 21.9°C | 16.1°C | 10.3°C | 30.6°C | 0.1°C | 17 mm | 61% | 2.9 m/s | 2.6 |
| 1992 | 21.0°C | 15.3°C | 9.5°C | 27.4°C | 2.4°C | 38 mm | 78% | 2.4 m/s | 2 |
| 1991 🌧️ | 19.6°C | 15.2°C | 10.9°C | 28.1°C | 2.4°C | 123 mm | 77% | 2.6 m/s | 2.2 |
| 1990 | 20.7°C | 14.4°C | 8.1°C | 29.9°C | -1.6°C | 3 mm | 62% | 2.6 m/s | 3.2 |
| 1989 ❄️ | 14.7°C | 8.5°C | 2.2°C | 24.1°C | -8.7°C | 37 mm | 64% | 2.5 m/s | 2.9 |
| 1988 | 22.1°C | 15.6°C | 9.0°C | 29.0°C | 3.1°C | 3 mm | 63% | 2.7 m/s | 3.1 |
| 1987 | 22.0°C | 15.5°C | 9.0°C | 31.7°C | 1.9°C | 16 mm | 65% | 2.5 m/s | 2.8 |
| 1986 | 17.8°C | 12.6°C | 7.5°C | 26.7°C | 1.1°C | 78 mm | 79% | 2.5 m/s | 2.1 |
| 1985 | 18.1°C | 11.8°C | 5.5°C | 26.8°C | -3.2°C | 5 mm | 74% | 2.1 m/s | 3 |
| 1984 | 24.4°C | 18.9°C | 13.4°C | 29.8°C | 0.7°C | 47 mm | 75% | 3 m/s | 2.5 |
| 1983 | 17.0°C | 10.3°C | 3.6°C | 29.1°C | -8.1°C | 9 mm | 58% | 2.7 m/s | — |
| 1982 | 19.7°C | 13.3°C | 6.9°C | 29.6°C | 0.1°C | 41 mm | 68% | 2.7 m/s | — |
| 1981 | 22.3°C | 15.4°C | 8.5°C | 30.3°C | 0.3°C | 9 mm | 61% | 2.3 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 21.2°C with lows near 8.5°C (mean 14.9°C), based on 45 years of NASA POWER data.
December averages 27 mm of rainfall in Laredo, one of the drier months. The wettest on record was 123 mm in 1991.
The hottest December reached 33.3°C in 2024. The coldest dipped to -8.7°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 4.1°C. Daytime highs moved from 20.3°C to 24.5°C and overnight lows from 7.6°C to 11.6°C over the same span.
December is one of the cooler months of the year in Laredo and one of the drier months, so plan for around 21.2°C daytime highs and 8.5°C at night.
Not quite — December is the 2nd coolest month in Laredo, averaging 14.9°C.
For December in Laredo, pack light layers you can adjust through the day, with typical highs of 21.2°C and lows of 8.5°C.
Relative humidity in December averages 67% — moderately humid.
Average wind speed in December is 2.6 m/s. The windiest December on record averaged 3 m/s (1984).
The wettest December on record was 1991 with 123 mm. On average, December sees 27 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 Laredo 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.
