December Weather in Kennebunk, United States

Last updated: February 24, 2025

In December, Kennebunk, United States experiences a brisk winter climate characterized by an average temperature of 0°C (33°F), with maximums reaching 15°C (59°F) and plunging to a chilly minimum of -20°C (-4°F). This month is marked by 81% humidity, creating a notably crisp atmosphere. Residents and visitors can expect approximately 125 mm (4.9 in) of precipitation over 10 days, often manifesting as snow or rain, adding a picturesque charm to the season while reminding all of winter's true character.

December Temperature in Kennebunk

As December settles in Kennebunk, the temperatures take a noticeable dip, with minimums plunging to -20°C (-4°F), providing a stark contrast to the milder months that precede it. The average temperature hovers around the chilly 0°C (33°F), signaling the onset of winter's embrace. Despite the cold, residents can expect highs of 15°C (59°F), a modest rise that hints at the seasonal variability typical of this coastal region. This pattern marks a transition to harsher winter conditions, with December's frigid air often paving the way for the even colder January temperatures. The month serves as a reminder of nature’s rhythm, heralding the snow-dusted landscapes that define the beauty of Kennebunk during wintertime.

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

The chart illustrates December temperature patterns in Kennebunk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec282935455566727164544132
Data source: Temperature data for Kennebunk generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Kennebunk

December in Kennebunk sees a significant increase in precipitation, with 125 mm (4.9 in) recorded, making it one of the wettest months of the year. This aligns with a trend of elevated rainfall as winter approaches, following November's 107 mm (4.2 in). Interestingly, December typically experiences about 10 precipitation days, mirroring the consistent pattern seen in the preceding months. The cumulative effect of this winter moisture contributes to the region's vibrant seasonal landscape, setting the stage for the cold months ahead. As snowfall begins to blend with the rain, residents can expect a mix of chilly, wet days that characterize this coastal town's late year weather.

December Precipitation Trends in Kennebunk

The chart displays monthly precipitation patterns in Kennebunk, 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.
JanFebMarAprMayJunJulAugSepOctNovDec81908112271701206570128107125
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kennebunk

In Kennebunk, United States, December brings a notable shift in humidity levels, averaging around 81%. This marks a slight increase from November's 84%, which is characteristic of the winter months. As the year progresses, humidity generally shows a gradual decline from the highs of winter, peaking at 86% in January and tapering down to 66% in August. The transition into December signals a return to higher moisture levels compared to the summer's drier days, indicating a seasonal rhythm that influences the local climate. Overall, December's humidity reflects the lingering chill of winter while also hinting at the cozy, cooler months ahead.

December Average Humidity in Kennebunk

This chart illustrates the average monthly humidity levels in Kennebunk, 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.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kennebunk

As December arrives in Kennebunk, the UV Index drops to 2, indicating a low level of sun exposure risk. Following the trend of the cooler months, the burn time increases to 45 minutes, allowing residents and visitors to enjoy the outdoors with less concern for sun damage. This month reflects a noticeable shift from the peak UV levels seen in the summer, where values soared to a high of 10 in June. Overall, the gradual decline in UV Index from November’s moderate 3 to December's low 2 underscores the seasonal transition and the importance of adjusting sun safety habits accordingly. For more insights on UV trends throughout the year, visit Kennebunk UV Index.

Maximum UV Index Levels in Kennebunk for December

The chart shows the monthly maximum UV Index (UVI) for Kennebunk 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.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Kennebunk 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 Kennebunk

In Kennebunk, December brings a cozy wrap-up to the year with 174 hours of sunshine, a subtle decline from the vibrant autumn months. As the days shorten, the winter chill sets in, but amidst this seasonal transition, December still offers a decent share of sun. The trend over the year shows a gradual increase in sunlight from January's 148 hours to a peak in August with 336 hours, showcasing Kennebunk's charm throughout the warmer months. As we step into the new year, the sunny days in December serve as a gentle reminder of the sunny memories to come, even as daylight fades with winter's approach.

Monthly Sunshine Duration in Kennebunk: December Highlighted

The December sunshine duration represents the total number of hours Kennebunk 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.
JanFebMarAprMayJunJulAugSepOctNovDec148h182h256h244h294h329h333h336h288h216h190h174h
Data source: Kennebunk December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kennebunk During December

In December, Kennebunk experiences a 33% chance of sunny weather, a figure that reflects a notable dip as the year winds down. This aligns with a general trend observed throughout the colder months, where the likelihood of sunshine tends to decline, especially when compared to the promising averages of spring, such as 62% in March. Interestingly, November offers a much brighter prospect with 55%, creating a stark contrast as the days become shorter and the atmosphere greyer. While December's sunshine rate remains modest, it serves as a reminder that pockets of brightness are still possible amidst the winter chill, setting the stage for cozy moments against the backdrop of frosty landscapes.

Percentage of Sunny Days in December in Kennebunk

The chart illustrates the percentage of sunny days in Kennebunk 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 Kennebunk experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec41%37%62%37%37%39%29%32%43%37%55%33%
Data source: Kennebunk December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kennebunk in December

As December approaches in Kennebunk, daylight begins to wane, culminating in just 8 hours of sunlight—a notable decrease compared to the 9 hours seen in November. This downward trend marks the shortest days of the year, contrasting sharply with the bright 15 hours of daylight enjoyed during the peak of summer in June and July. As the year progresses from spring to winter, daylight duration gradually increases from 11 hours in March to a lush 14 hours in May, before tapering off into the darker months. This rhythmic ebb and flow of daylight not only shapes outdoor activities but also sets the stage for cozy winter nights as the community wraps itself in the warmth of holiday spirit and seasonal festivities.

Average Daylight Hours in Kennebunk for December

The chart illustrates the variation in daylight duration in Kennebunk throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 20m10h 30m11h 58m13h 27m14h 43m15h 21m15h13h 52m12h 26m10h 57m9h 39m8h 58m
Data source: Kennebunk daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Kennebunk

As December arrives in Kennebunk, the winds pick up slightly, averaging 3.7 m/s (8 mph), just a notch above the preceding months. This subtle increase reflects a broader trend of generally stable winds throughout the year, with December showcasing a gentle persistence in breeziness similar to earlier winter months. Notably, the summer months present a softer caress of wind, with July and August dipping to an average of just 2.9 m/s and 2.8 m/s respectively. As the seasons shift, the winds of Kennebunk dance between calm and brisk, wrapping the town in the chill of winter while hinting at the distinct seasonal character that defines this enchanting coastal community.

Average December Wind Speed in Kennebunk

The chart displays monthly wind speed patterns in Kennebunk, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.63.64.23.63.43.52.92.83.33.43.63.7 m/s
Data source: Kennebunk December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Kennebunk Compares to Other Months

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

In December, temperatures range from a minimum of -20°C (-4°F) to a maximum of 15°C (59°F), with an average temperature of around 0°C (33°F). This month experiences significant precipitation, totaling 125 mm (4.9 in) over approximately 10 days, and maintains a humidity level of 81%. In contrast, January presents slightly colder conditions, with temperatures dipping to a minimum of -21°C (-6°F) and an average temperature of -2°C (28°F), while reaching a maximum of 16°C (61°F). Precipitation decreases to 80 mm (3.2 in) over about 8 days, accompanied by a higher humidity level of 86%. For more detailed insights into January weather conditions, check out Kennebunk weather in January.

December and February showcase distinctly cold winter weather, with both months experiencing freezing temperatures and notable precipitation. In December, temperatures range from a minimum of -20°C (-4°F) to a maximum of 15°C (59°F), with an average of 0°C (33°F) and 125 mm (4.9 in) of precipitation over about 10 days. In contrast, February sees slightly milder temperatures, with a minimum of -18°C (0°F) and a maximum of 20°C (68°F), averaging -2°C (29°F) while receiving 90 mm (3.6 in) of precipitation across the same number of days. Additionally, humidity levels are quite comparable, with December at 81% and February increasing slightly to 84%. For more detailed insights on February weather in Kennebunk, you can visit Kennebunk weather in February.

December and March present distinct weather patterns, reflecting the transition from winter to early spring. In December, temperatures can drop as low as -20°C (-4°F) but average around 0°C (33°F), with a maximum of 15°C (59°F), contributing to a chilly ambiance. This month sees an average precipitation of 125 mm (4.9 in) over approximately 10 days, accompanied by high humidity levels of 81%. Conversely, March experiences slightly milder conditions with temperatures ranging from a minimum of -18°C (0°F) to an average of 2°C (35°F) and a maximum of 20°C (68°F). Precipitation decreases to 81 mm (3.2 in) across the same number of days, while humidity remains consistent at 82%. For a more detailed look at March weather, check out Kennebunk weather in March.

December and April present a stark contrast in weather conditions. December's temperatures range from a chilly -20°C (-4°F) to a mild 15°C (59°F), with an average temperature around freezing at 0°C (33°F). This month also sees considerable precipitation, totaling 125 mm (4.9 in) over approximately 10 days, accompanied by relatively high humidity at 81%. In contrast, April experiences a much milder climate, with temperatures fluctuating between -4°C (26°F) and a warm 29°C (84°F), averaging 7°C (46°F). The precipitation is slightly lower at 122 mm (4.8 in), spread over about 12 days, while humidity remains comparable at 80%. For more details about weather specifics in April, you can visit Kennebunk weather in April.

December and May present contrasting weather patterns. In December, temperatures range from a brisk -20°C (-4°F) to a maximum of 15°C (59°F), with an average hovering around freezing at 0°C (33°F). This month experiences considerable precipitation, with about 125 mm (4.9 in) falling over 10 days, and humidity levels remain high at 81%. Conversely, May offers a much milder climate, with temperatures ranging from a minimum of 2°C (35°F) to a warm maximum of 33°C (92°F) and an average of 13°C (56°F). While precipitation decreases to 71 mm (2.8 in) over 9 days, humidity is slightly lower at 72%. These differences highlight May as a time of warming and growth, while December retains the chill and stark beauty of winter. For more details on weather trends, check out Kennebunk weather in May.

December and June present quite contrasting weather conditions. In December, temperatures can plummet to a chilling minimum of -20°C (-4°F) with an average of around 0°C (33°F) and occasional highs reaching 15°C (59°F). The month sees substantial precipitation averaging 125 mm (4.9 in) over about 10 days and high humidity at 81%. In stark contrast, June brings a much warmer climate with minimum temperatures of 5°C (41°F) and an average of 19°C (66°F), peaking at a comfortable 35°C (95°F). Precipitation is lighter in June, averaging 70 mm (2.8 in) across 9 days, and humidity is reduced to 72%. For a closer look, you can check Kennebunk weather in June.

December and July present strikingly different weather conditions. In December, temperatures drop significantly, with lows reaching -20°C (-4°F), while the average hovers around 0°C (33°F) and can peak at 15°C (59°F). The month sees considerable precipitation, totaling 125 mm (4.9 in) over approximately 10 days, accompanied by high humidity levels at 81%. In contrast, July boasts a much warmer climate with minimum temperatures of 13°C (56°F), an average of 22°C (72°F), and maximums soaring up to 34°C (93°F). Precipitation is slightly lower at 120 mm (4.7 in) over about 11 days, and humidity levels are more comfortable at 67%. For more details on the summer climate, check out Kennebunk weather in July.

In December, the weather is characterized by frigid temperatures, ranging from a minimum of -20°C (-4°F) to a maximum of 15°C (59°F), with an average around 0°C (33°F). The month sees significant precipitation totaling 125 mm (4.9 in) over approximately 10 days, coupled with high humidity levels at 81%. In contrast, August offers a much milder climate, with temperatures fluctuating from a minimum of 11°C (52°F) to a maximum of 33°C (92°F), and an average temperature of 22°C (72°F). Precipitation in August is notably less, at 65 mm (2.5 in) over about 9 days, accompanied by lower humidity at 66%. This stark difference makes December a wintry month, while August is warm and inviting. For more details, you can check Kennebunk weather in August.

In comparing December and September weather, the stark differences become immediately evident. December experiences much colder temperatures, with a minimum of -20°C (-4°F) and an average around 0°C (33°F), while September boasts a warmer average temperature of 18°C (65°F) and highs reaching 32°C (90°F). Precipitation is more frequent in December, occurring on about 10 days and totaling 125 mm (4.9 in), compared to September's 70 mm (2.8 in) over 7 days. Additionally, December's higher humidity at 81% creates a more damp and chilly atmosphere, whereas September's humidity is a bit lower at 71%, contributing to a more pleasant fall climate. For more details on September weather, you can check out Kennebunk weather in September.

In December, the weather turns much colder, with temperatures ranging from a minimum of -20°C (-4°F) to a maximum of 15°C (59°F), resulting in an average temperature of 0°C (33°F). In contrast, October boasts milder conditions, with temperatures fluctuating between a minimum of 0°C (32°F) and a maximum of 28°C (82°F) and an average of 12°C (54°F). Both months experience similar levels of precipitation, with December receiving 125 mm (4.9 in) over about 10 days and October slightly higher at 128 mm (5.0 in) over 11 days. Humidity also remains comparable, at 81% in December and 78% in October. For more detailed information on October weather, you can check Kennebunk weather in October.

When comparing the weather in December to that of November, notable differences emerge. December experiences much colder temperatures, with a minimum of -20°C (-4°F) and an average of 0°C (33°F), while November has milder conditions, ranging from a minimum of -12°C (11°F) and an average of 5°C (42°F). Additionally, December sees a slight increase in precipitation, totaling 125 mm (4.9 in) over 10 days compared to November's 107 mm (4.2 in), despite similar precipitation days. Humidity levels are relatively high in both months, with December at 81% and November slightly higher at 84%. For more details on November weather, visit Kennebunk weather in November.

Compare Kennebunk's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Kennebunk

December in Kennebunk brings a significant shift in weather as the year draws to a close. The chill sets in with notably lower temperatures, creating a winter wonderland that's a stark contrast to the milder months. While you can expect around ten days of precipitation, the increased humidity of 81% adds to the brisk atmosphere typical of this season. With maximum highs reaching only 15°C (59°F) and the frigid lows plummeting to -20°C (-4°F), December's weather truly encapsulates the heart of winter. For a deeper understanding of how these conditions shape the unique charm of Kennebunk, explore more at Kennebunk Climate.