December Weather in Waco, United States

Last updated: February 24, 2025

In Waco, United States, December brings a diverse range of weather experiences. The maximum temperature often reaches a pleasant 29°C (84°F), while the average dips to a cool 12°C (54°F). Nights can be brisk, with minimums plummeting to -3°C (27°F). This month also sees 63 mm (2.5 in) of precipitation over approximately 6 days, contributing to a humid atmosphere, with levels averaging around 87%. Whether enjoying the milder days or bundling up for the cooler nights, December in Waco offers a unique blend of seasonal weather.

December Temperature in Waco

In Waco, United States, December brings a notable chill, with temperatures typically ranging from a minimum of -3°C (27°F) to a comfortable maximum of 29°C (84°F). As the year draws to a close, the average temperature settles at 12°C (54°F), signaling a shift toward cooler conditions after the warmer months. This transitional period is marked by the crisp air of early winter, offering a refreshing contrast to the sweltering heat of the summer months, where highs peak at 44°C (111°F) in July. December's relatively mild temperatures, with less drastic fluctuations than experienced earlier in the year, invite a cozy atmosphere perfect for seasonal festivities and outdoor activities.

December Weather in Waco: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Waco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec505263677682868681705954
Data source: Temperature data for Waco generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Waco

December in Waco sees a precipitation amount of 63 mm (or 2.5 in), marking a slight dip compared to the wetter months of spring and early fall. With precipitation occurring on 6 days, the month maintains a consistent pattern, reflecting a mild transition into winter. Notably, December's total is slightly lower than January's, which typically experiences 60 mm (2.4 in) over six days as well. This trend showcases Waco's shift toward drier conditions as the year winds down, with the city experiencing its driest spell earlier in the summer months. Overall, December's weather serves as a reminder of the fluctuating climate, gently easing Waco into the cooler, drier winter months ahead.

December Precipitation Trends in Waco

The chart displays monthly precipitation patterns in Waco, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec60788196184775178801295163
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Waco

December in Waco, United States, sees a notable increase in humidity, peaking at 87%, making it one of the most humid months of the year. As the year progresses, there's a clear trend of declining humidity during the warmer summer months, with July and August experiencing the driest conditions at 71% and 67%, respectively. However, as fall arrives, humidity levels rise again, culminating in the highest readings in late autumn and early winter. This cyclical pattern highlights the region's shift from the drier heat of summer to the more humid, cooler months, providing a stark reminder of Waco's uniquely variable climate.

December Average Humidity in Waco

This chart illustrates the average monthly humidity levels in Waco, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec80%80%78%79%81%77%71%67%69%73%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Waco

December in Waco, United States, sees a UV Index of 4, placing it in the moderate exposure category. With a burn time of 30 minutes, this month marks a welcome decline from the extreme levels experienced during the sweltering summer months, where indices reached as high as 12 in June and July. As temperatures drop and sunlight becomes less intense, the risk of sunburn diminishes significantly compared to the very high indices of earlier months like March and April. This trend highlights the importance of adjusting sun protection strategies with changing seasons. For more detailed information, visit Waco UV Index.

Maximum UV Index Levels in Waco for December

The chart shows the monthly maximum UV Index (UVI) for Waco in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec478101112121110864
Data source: Waco December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Waco

In Waco, United States, December offers a gentle transition into winter with 224 hours of sunshine, a notable decrease from the vibrant 280 hours seen in May and the 356 hours of sun enjoyed during the peak of summer in July. The month reflects a gradual decline as daylight shortens, consistent with the trends of the colder months following an impressive spring and summer. Despite the lessened sunlight, December still shines brightly compared to earlier winter months, hinting at the promise of rejuvenation and longer days that await in the new year. Waco's December sunshine, while softer, invites a sense of calm and reflection, perfectly complementing the festive spirit of the season.

Monthly Sunshine Duration in Waco: December Highlighted

The December sunshine duration represents the total number of hours Waco experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec174h169h242h257h280h338h356h330h279h273h238h224h
Data source: Waco December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Waco During December

In Waco, Texas, December showcases a 48% chance of sunshine, reflecting a slight dip compared to the preceding months of September, October, and November, which each boast a robust 61% likelihood. This trend suggests that as the year winds down, Waco experiences a gradual decline in sunny days. While December’s sun exposure is less than optimal, it still stands stronger than the sunniest months of spring, like April (41%) and May (27%). Overall, while the holiday season might bring cooler temperatures, Waco still offers a fair opportunity for enjoying sunny moments amid the winter chill.

Percentage of Sunny Days in December in Waco

The chart illustrates the percentage of sunny days in Waco throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Waco experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%44%56%41%27%45%43%50%61%61%61%48%
Data source: Waco December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Waco in December

In Waco, Texas, December ushers in a return to shorter days, as daylight duration settles at 10 hours, mirroring the early winter months of November and January. This seasonal pattern highlights a gradual decline in daylight from the summer peak of 14 hours in June, through a steady decrease that begins in September and culminates in the depths of winter. Interestingly, while December reflects the same daylight length as the other months in this triad, it also signals the onset of winter's grip, contrasting the vibrant growth and energy of the longer days in spring and summer. As the year draws to a close, Wacoans can embrace the cozy ambiance these shorter days foster, preparing for the eventual return of longer daylight hours in the new year.

Average Daylight Hours in Waco for December

The chart illustrates the variation in daylight duration in Waco throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 20m11h 4m12h12h 57m13h 45m14h 9m13h 56m13h 13m12h 18m11h 21m10h 31m10h 7m
Data source: Waco daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Waco

As the year draws to a close, December in Waco reveals a notable shift in wind conditions, with an average wind speed of 4.1 m/s (9 mph). This marks a subtle increase compared to the calmer summer months, where wind speeds dipped to around 2.9 m/s (7 mph) in July and September. The transition into winter brings a refreshing breeze, slightly higher than both November and the preceding autumn months. Overall, the trend indicates a gradual escalation in wind activity, culminating in December, highlighting the dynamic seasonal shifts that characterizes Waco's climate throughout the year.

Average December Wind Speed in Waco

The chart displays monthly wind speed patterns in Waco, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.84.54.84.43.93.32.93.32.93.83.84.1 m/s
Data source: Waco December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Waco Compares to Other Months

The weather in Waco changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Waco and find detailed weather information for every month.

December and January present notable contrasts in weather conditions. In December, temperatures range from a minimum of -3°C (27°F) to a maximum of 29°C (84°F), with an average of 12°C (54°F). The month experiences 63 mm (2.5 in) of precipitation over six days, contributing to a higher humidity level of 87%. In comparison, January sees a drop in minimum temperatures to -10°C (14°F) and an average of 10°C (50°F), with a maximum temperature of 27°C (81°F). Precipitation slightly decreases to 60 mm (2.4 in) over the same six days, and humidity drops to 79%. For more detailed information, check out Waco weather in January.

In December, temperatures range from a chilly minimum of -3°C (27°F) to a pleasant average of 12°C (54°F), peaking at a warm 29°C (84°F). The month sees about 63 mm (2.5 inches) of precipitation over six days, accompanied by high humidity levels of 87%. In contrast, February offers even colder conditions, with temperatures dropping to a minimum of -16°C (4°F) and maintaining an average of 11°C (52°F), while still reaching a maximum of 30°C (87°F). The month is slightly wetter, with precipitation amounting to 78 mm (3.1 inches) across nine days and a relatively lower humidity of 80%. For a detailed look at February's weather, you can explore Waco weather in February.

In comparing the weather of December and March, December tends to be cooler, with average temperatures ranging from a minimum of -3°C (27°F) to a maximum of 29°C (84°F). In contrast, March experiences slightly lower minimum temperatures, dropping to -5°C (23°F), but boasts a higher average of 17°C (63°F) and a maximum of 33°C (91°F). While December has 63 mm (2.5 in) of precipitation over about 6 days, March records slightly more precipitation at 81 mm (3.2 in) across 9 days, indicating a wetter month. Additionally, December's humidity is higher at 87%, compared to March's 78%. For more details on March weather, check out Waco weather in March.

December and April present contrasting weather patterns. In December, temperatures range from a chilly minimum of -3°C (27°F) to a warm maximum of 29°C (84°F), with an average of 12°C (54°F). The month experiences a fair amount of precipitation, totaling 63 mm (2.5 in) over about 6 days, coupled with high humidity at 87%. In contrast, April sees a more moderate minimum temperature of 3°C (38°F) and an average peak of 20°C (67°F), soaring to a maximum of 35°C (95°F). This month is also wetter, with 96 mm (3.8 in) of rainfall spread over 8 days and lower humidity at 79%. For more details about the weather specifics in April, check out Waco weather in April.

December and May exhibit contrasting weather patterns. In December, temperatures range from a chilly minimum of -3°C (27°F) to a warm maximum of 29°C (84°F), with an average temperature of 12°C (54°F). The humidity is quite high at 87%, and the month experiences 63 mm (2.5 in) of precipitation over about six days. In stark contrast, May boasts significantly warmer temperatures, with a minimum of 10°C (49°F) and soaring to a maximum of 37°C (99°F), resulting in an average temperature of 24°C (76°F). This month is also wetter, recording 184 mm (7.2 in) of precipitation spread over 13 days, coupled with a slightly lower humidity at 81%. For more details about the weather in May, you can check Waco weather in May.

In December, temperatures in Waco can vary significantly, with lows dropping to -3°C (27°F) and highs reaching up to 29°C (84°F). The month typically experiences an average temperature of 12°C (54°F) and witnesses about 63 mm (2.5 in) of precipitation over approximately 6 days, accompanied by high humidity at 87%. In contrast, June brings warmer weather, with minimum temperatures starting at 15°C (60°F) and soaring to a maximum of 40°C (104°F). The average temperature during this month is a comfortable 28°C (83°F), and rainfall increases slightly to 77 mm (3.0 in) over about 10 days, with humidity levels lower at 77%. For more details on Waco's June climate, check out Waco weather in June.

December and July present striking contrasts in weather. In December, temperatures can drop as low as -3°C (27°F), with an average of 12°C (54°F) and a maximum of 29°C (84°F), accompanied by a relatively high humidity of 87%. This month also sees about 63 mm (2.5 in) of precipitation over approximately 6 days, creating a chilly and damp atmosphere. In contrast, July experiences much warmer conditions, with temperatures ranging from a minimum of 18°C (64°F) to a scorching maximum of 44°C (111°F) and an average of 30°C (87°F). While July has slightly less precipitation at 51 mm (2.0 in), it occurs over more days—around 8 days—coupled with lower humidity levels of 71%. For more insights into the summer weather, visit Waco weather in July.

December and August present contrasting weather conditions, with December experiencing cooler temperatures ranging from a minimum of -3°C (27°F) to a maximum of 29°C (84°F) and an average of 12°C (54°F). The month sees approximately 63 mm (2.5 in) of precipitation over about 6 days, accompanied by high humidity at 87%. In stark contrast, August boasts much warmer temperatures, with a minimum of 20°C (68°F) and a maximum soaring up to 41°C (106°F), averaging around 30°C (87°F). August also has a slightly higher precipitation level of 78 mm (3.1 in) over 7 days but lower humidity at 67%. For a more in-depth look at August weather in Waco, check out Waco weather in August.

December and September present stark contrasts in weather conditions. In September, temperatures range significantly from a minimum of 11°C (51°F) to a scorching maximum of 39°C (103°F), with an average of 27°C (81°F) and humidity at a comfortable 69%. In comparison, December sees much cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 29°C (84°F), averaging around 12°C (54°F). Precipitation is slightly higher in September at 80 mm (3.1 in) over 7 days, compared to December's 63 mm (2.5 in) over 6 days, while humidity in December can reach a notable 87%. For an in-depth look at September’s weather patterns, visit Waco weather in September.

When comparing the weather of December and October, there are notable differences in temperature and precipitation. December experiences a cooler range with minimum temperatures dipping to -3°C (27°F) and averaging around 12°C (54°F), while October typically boasts much milder conditions, with minimums at 3°C (37°F) and averages of 21°C (70°F). Additionally, October sees more significant precipitation, accumulating 129 mm (5.1 in) over about 8 days compared to December's 63 mm (2.5 in) spread over 6 days. The humidity also contrasts, with December's average at 87% being notably higher than October's 73%. For more detailed information, you can check Waco weather in October.

When comparing the weather in December to that of November, notable differences emerge in temperature and precipitation patterns. December experiences a minimum temperature of -3°C (27°F) and an average of 12°C (54°F), whereas November is slightly colder at a minimum of -4°C (25°F) but has a higher average of 15°C (59°F). Both months reach their maximum temperatures in the low 30s°C, with December peaking at 29°C (84°F) and November at 32°C (90°F). Precipitation also varies, with December receiving 63 mm (2.5 in) over 6 days compared to November's 51 mm (2.0 in) over 7 days. This makes December a little wetter despite its slightly fewer rainy days. Additionally, humidity levels are higher in December at 87%, compared to November's 82%. For more details on the weather in November, you can check Waco weather in November.

Compare Waco's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Waco

In December, Waco experiences a notable shift in weather compared to the rest of the year. With cooler temperatures averaging around 12°C (54°F) and the possibility of dipping down to -3°C (27°F), it’s a month that ushers in a chillier atmosphere. While the humid conditions remain with an 87% humidity level, the 63 mm (2.5 in) of precipitation spread over 6 days adds a touch of winter moisture that’s less common in the warmer months. This unique blend of cool temperatures and higher humidity creates a distinct winter vibe in Waco, setting the stage for a cozy end to the year. For a deeper dive into what Waco offers throughout the seasons, check out Waco Climate.