December Weather in Georgetown, United States

Last updated: February 24, 2025

In December, Georgetown, United States experiences a temperature spectrum that ranges from a chilly -25°C (-13°F) at its lowest to a mild 8°C (47°F) at its peak, with an average temperature hovering around -9°C (16°F). This month sees about 32 mm (1.3 in) of precipitation over 9 days, contributing to the crisp winter atmosphere. The high humidity levels, averaging at 89%, further enhance the cold's bite, making it a quintessential winter month in this picturesque town. Embrace the frosty beauty that December brings, complete with a landscape often adorned in white.

December Temperature in Georgetown

In December, Georgetown, United States, embraces the chill of winter with temperatures that reflect the deepening cold. The month ushers in minimum readings around -25°C (-13°F) and an average of -9°C (16°F), setting a frigid tone for the season. While the maximum temperature climbs to 8°C (47°F), the overall climate remains significant cooler compared to the preceding months. This pattern illustrates a clear downward trend as winter takes hold, with consistent cold stretching from the previous November. As December settles in, Georgetown transforms into a winter wonderland, inviting residents and visitors alike to embrace the beauty of the season's chill.

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

The chart illustrates December temperature patterns in Georgetown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec161624283648545347322316
Data source: Temperature data for Georgetown 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 Georgetown

In December, Georgetown experiences a modest precipitation amount of 32 mm (1.3 in), slightly lower than the previous months. Over the course of this month, rain typically graces the area on about 9 days, marking a gentle conclusion to the wetter fall season. The trend reveals a gradual decrease in precipitation as the year draws to a close, with December's totals on par with the drier months of January and November. As temperatures cool, the consistency of rain also drops, echoing the overall seasonal transition, while still providing the essential moisture that supports local vegetation during winter's onset.

December Precipitation Trends in Georgetown

The chart displays monthly precipitation patterns in Georgetown, 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.
JanFebMarAprMayJunJulAugSepOctNovDec335064789564896245563533
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Georgetown

In December, Georgetown experiences a notable rise in humidity, peaking at 89% as the year comes to a close. This increase marks a continuation of a trend observed throughout the late months, where humidity levels fluctuate significantly. Following a steady decline from the summer months of July (52%) and August (56%), humidity begins its ascent again in November with 82% before reaching its highest point in December. This cyclical pattern hints at Georgetown's climate dynamics, balancing between summer's drier spells and the moisture-laden air of winter, creating an environment that feels increasingly muggy as the holidays approach.

December Average Humidity in Georgetown

This chart illustrates the average monthly humidity levels in Georgetown, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%76%67%58%52%56%65%76%82%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Georgetown

December in Georgetown, United States, marks a return to a moderate UV Index of 4, similar to January's, offering residents a reprieve from the harsher sunlight of earlier months. As the year progresses, we see a notable trend: from the high UV Index of 6 in February to an alarming extreme peak of 13 from April through July. This upward trajectory showcases the intense exposure risks of spring and summer, with burn times decreasing dramatically to just 10 minutes during those months. By September, the UV Index dips back to 10, suggesting a gradual easing into safer conditions, especially as fall approaches. November and December reaffirm this trend with their moderate ratings, allowing for safer outdoor activities as temperatures cool. For more detailed information on UV levels throughout the year, visit Georgetown UV Index.

Maximum UV Index Levels in Georgetown for December

The chart shows the monthly maximum UV Index (UVI) for Georgetown 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.
JanFebMarAprMayJunJulAugSepOctNovDec4610131313131210754
Data source: Georgetown 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 Georgetown

In Georgetown, United States, December brings a gentle decline in sunshine hours, totaling 243 hours of daylight. As the year draws to a close, the trend of increasing sunlight throughout the warmer months culminates in a peak during the height of summer with 381 hours in July. This gradual ascent from January’s modest 188 hours to the sun-kissed days of May and June vividly illustrates the region's seasonal dynamics. While December's sunlight is less abundant than the vibrant 349 hours of May, it still reflects a lingering brightness as the days shorten. Overall, Georgetown’s seasonal sunshine pattern reveals a predictable ebb and flow that captures the charm of every month, inviting residents and visitors alike to enjoy the softer glow of winter days.

Monthly Sunshine Duration in Georgetown: December Highlighted

The December sunshine duration represents the total number of hours Georgetown 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.
JanFebMarAprMayJunJulAugSepOctNovDec188h239h295h316h349h379h381h356h314h281h252h243h
Data source: Georgetown December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Georgetown During December

In December, Georgetown, United States, enjoys a 59% chance of sunny weather, making it one of the more favorable months for sunshine as the year draws to a close. This percentage reveals a noticeable trend: as autumn transitions to winter, the likelihood of sunny days remains relatively high compared to earlier months, such as February and May, which dip to 43%. Interestingly, December's sunny potential is further reinforced by the increasing trend observed from September's 67% down through November, highlighting a cozy finish to the year. If you're planning activities this month, the sunshine is likely to make your experiences even more delightful!

Percentage of Sunny Days in December in Georgetown

The chart illustrates the percentage of sunny days in Georgetown 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 Georgetown experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%43%48%50%43%53%53%63%67%58%63%59%
Data source: Georgetown December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Georgetown in December

As December sets in Georgetown, the days grow shorter, offering only 9 hours of daylight—a stark contrast to the vibrant 14 hours experienced during the height of summer. This gradual decline from the lengthy summer days reflects a natural rhythm, where daylight reaches its peak in May and gradually diminishes, with the months of autumn transitioning smoothly into winter's shorter daylight. The return to 9 hours in both November and December marks the year’s end, inviting a time for reflection and coziness as residents embrace the crisp winter evenings. The cycle of daylight duration not only shapes the daily activities of Georgetown residents but also highlights the enchanting changes each season brings.

Average Daylight Hours in Georgetown for December

The chart illustrates the variation in daylight duration in Georgetown throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 42m10h 42m11h 58m13h 16m14h 22m14h 55m14h 37m13h 38m12h 23m11h 5m9h 58m9h 23m
Data source: Georgetown daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Georgetown

As December arrives in Georgetown, the winds begin to pick up slightly, with an average speed of 3.3 m/s (7 mph), mirroring the briskness of late fall. This is a subtle increase compared to the calm of summer months, which saw speeds around 2.0 to 2.1 m/s (4 to 5 mph), creating a noticeable contrast. Overall, the trend from November's 3.4 m/s (8 mph) suggests a consistent pattern of refreshing breezes as the year wraps up, cooling the streets and giving Georgetown its characteristic winter charm. Interestingly, while spring months tend to fluctuate more, December's winds offer a stable, invigorating presence, making it a delightful time for leisurely walks along the waterfront.

Average December Wind Speed in Georgetown

The chart displays monthly wind speed patterns in Georgetown, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.72.62.72.42.12.02.12.22.73.43.3 m/s
Data source: Georgetown December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Georgetown Compares to Other Months

The weather in Georgetown 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 Georgetown and find detailed weather information for every month.

In December, temperatures exhibit a minimum of -25°C (-13°F) and a maximum of 8°C (47°F), while January sees slightly colder minimums reaching -28°C (-18°F), though the average temperature remains consistent at -9°C (16°F) for both months. Precipitation is comparable, with December receiving 32 mm (1.3 in) over 9 days and January slightly more at 33 mm (1.3 in) across 8 days. Humidity levels are also similar, with December sitting at 89% and January at 88%. For a detailed look at January's weather, check out Georgetown weather in January.

December and February exhibit striking similarities in average temperatures, with both months averaging around -9°C (16°F). However, December tends to be slightly milder, with maximum temperatures reaching up to 8°C (47°F), compared to February’s peak of 10°C (50°F). Notably, February experiences colder minimum temperatures, dropping to -30°C (-21°F), whereas December rarely dips below -25°C (-13°F). Additionally, February has higher precipitation, totaling 50 mm (2.0 in) over 12 days, compared to December’s 32 mm (1.3 in) over 9 days. Despite higher precipitation, February maintains a slightly lower humidity level at 87%. For more details on the weather conditions in February, check out Georgetown weather in February.

In December, temperatures can drop to a minimum of -25°C (-13°F), with an average of -9°C (16°F) and a maximum of 8°C (47°F). The month typically sees about 32 mm (1.3 in) of precipitation over 9 days, coupled with a high humidity of 89%. In contrast, March experiences slightly milder weather, with minimum temperatures around -23°C (-9°F), an average of -5°C (24°F), and a maximum reaching 11°C (52°F). Additionally, March has increased precipitation of 64 mm (2.5 in) spread over 13 days, though humidity is lower at 81%. For a more detailed look at the weather specifics, check out Georgetown weather in March.

December weather typically brings colder temperatures, with an average of -9°C (16°F) and a maximum of 8°C (47°F). The month sees around 32 mm (1.3 in) of precipitation over approximately 9 days, accompanied by high humidity at 89%. In contrast, April marks a transition to milder conditions, featuring an average temperature of -2°C (29°F) and a peak of 12°C (53°F). Precipitation increases to 78 mm (3.1 in), occurring throughout about 13 days, while humidity decreases to 76%. This contrast highlights the dramatic shift from the deep winter chill of December to the early signs of spring in April. For more details, check Georgetown weather in April.

December and May present distinctly contrasting weather conditions. In December, temperatures can plummet to a minimum of -25°C (-13°F), with an average of -9°C (16°F) and a maximum of just 8°C (47°F). The month experiences considerable humidity at 89% and receives about 32 mm (1.3 in) of precipitation across 9 days, creating a chilly and damp atmosphere. In stark contrast, May boasts a much milder climate with temperatures ranging from a minimum of -12°C (11°F) to a pleasant maximum of 20°C (68°F), averaging around 2°C (36°F). This month sees significantly higher precipitation, totaling 95 mm (3.7 in) over 17 days, but with lower humidity at 66%. For more details about the weather in May, visit Georgetown weather in May.

In December, temperatures plummet to a minimum of -25°C (-13°F), with an average of -9°C (16°F) and a maximum of 8°C (47°F), creating a frigid winter atmosphere. The month is characterized by high humidity at 89% and 32 mm (1.3 in) of precipitation spread over 9 days. In contrast, June brings a welcome warmth, with minimum temperatures of -7°C (20°F), averaging 9°C (48°F) and soaring up to a maximum of 25°C (78°F). Although June experiences more precipitation at 64 mm (2.5 in) over 13 days, the humidity is significantly lower at 58%, making the summer weather feel more comfortable and inviting. For a closer look at the weather patterns, you can visit Georgetown weather in June.

December and July present stark contrasts in weather conditions. In December, temperatures plummet, with averages around -9°C (16°F) and a minimum reaching as low as -25°C (-13°F). This month also sees higher humidity at 89% and 32 mm (1.3 in) of precipitation over 9 days, making it a chilly and damp time. In contrast, July boasts much warmer temperatures with an average of 12°C (55°F) and peaks reaching 25°C (77°F). The summer month experiences lighter humidity at 52% and significantly more rainfall, totaling 89 mm (3.5 in) across 18 days. For a detailed look at July weather, you can visit Georgetown weather in July.

December and August present starkly contrasting weather patterns. In December, temperatures can plummet to a minimum of -25°C (-13°F) with an average of -9°C (16°F) and a maximum of only 8°C (47°F), accompanied by high humidity levels at 89%. Moreover, this month sees about 32 mm (1.3 in) of precipitation spread over 9 days. In contrast, August enjoys much milder weather, with temperatures ranging from a minimum of 0°C (33°F) to a comfortable maximum of 23°C (74°F), averaging 12°C (54°F). The precipitation increases to 62 mm (2.4 in) over 13 days, but the humidity drops to a more pleasant 56%. For a detailed look at the weather during this summer month, check out Georgetown weather in August.

In comparing the weather between December and September, it's evident that December experiences much colder temperatures, with a minimum of -25°C (-13°F) and an average around -9°C (16°F), while September is milder, with highs reaching up to 23°C (75°F) and an average of 8°C (48°F). Precipitation is slightly higher in September, totaling 45 mm (1.8 in) over 9 days, compared to December's 32 mm (1.3 in) also over 9 days. Additionally, December's humidity level is significantly higher at 89%, creating a stark difference in the overall climatic feel between the two months. For more detailed insights on September weather, you can visit Georgetown weather in September.

When comparing the weather in December and October, a few notable differences emerge. December tends to be significantly colder, with average temperatures around -9°C (16°F) compared to October's milder average of 0°C (32°F). Additionally, while both months experience precipitation on approximately nine days, October sees more rainfall at 56 mm (2.2 in) versus December's 32 mm (1.3 in). Humidity levels are also higher in December at 89%, contrasting with October's 76%. For a more detailed look at October weather, you can check out Georgetown weather in October.

In comparing the weather patterns of December and November, December typically presents colder temperatures, with an average of -9°C (16°F) compared to November's average of -5°C (23°F). Both months experience similar minimum temperatures, hitting -25°C (-13°F) in December and -25°C (-12°F) in November. However, December shows a slightly higher maximum temperature of 8°C (47°F), while November reaches up to 11°C (51°F). Precipitation levels are fairly close, with December receiving 32 mm (1.3 in) over 9 days, while November sees 35 mm (1.4 in) across 7 days. Additionally, December has a higher humidity level at 89%, compared to November’s 82%. For a more detailed look at November's weather, you can check Georgetown weather in November.

Compare Georgetown's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Georgetown

As December unfolds in Georgetown, the winter chill takes center stage, with average temperatures dropping significantly compared to other months. The max temperatures hover around a brisk 8°C (47°F), while cold snaps can plunge to a chilling -25°C (-13°F). With high humidity levels at 89%, the air feels notably colder, accentuating the biting winter cold. Precipitation, averaging 32 mm (1.3 in) over nine days, often manifests as snow, lending a picturesque charm to the landscape. For a deeper dive into Georgetown's unique climate trends, be sure to check out Georgetown Climate.