December Weather in Boothbay, United States

Last updated: February 24, 2025

In December, Boothbay, United States, experiences a diverse range of weather conditions, characterized by a maximum temperature reaching up to 15°C (60°F) and an average low of -1°C (30°F), with potential dips to -23°C (-9°F). Marked by high humidity levels at 81%, this month also sees considerable precipitation, totaling 121 mm (4.8 in) over the course of approximately 10 days. Visitors and residents alike should be prepared for a variety of winter weather, from chilly, brisk days to wetter, more humid conditions that characterize this coastal climate.

December Temperature in Boothbay

In Boothbay, United States, December ushers in the chill of winter, with temperatures showcasing a stark progression from the milder fall months. The month typically experiences a minimum of -23°C (-9°F), a significant dip from the November lows, signaling that the heart of winter has truly arrived. The average temperature hovers around -1°C (30°F), which is indicative of intense cold, yet it remains manageable compared to the frigid January extremes. While the maximum temperature can reach 15°C (60°F), this provides brief moments of respite, allowing for occasional outdoor gatherings amid the holiday spirit. As December wraps up the year, its temperatures reflect a dramatic shift towards the depths of winter, urging residents to bundle up and embrace the seasonal beauty that surrounds them.

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

The chart illustrates December temperature patterns in Boothbay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec262733445464707063534030
Data source: Temperature data for Boothbay 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 Boothbay

December in Boothbay brings a refreshing shift as precipitation levels peak at 121 mm (4.8 in), slightly down from October's notable 128 mm (5.1 in). With rain falling on 10 days, December maintains a steady rhythm of wet weather, contributing to the town's lush winter landscape. This month’s rainfall, while robust, is indicative of a trend seen throughout the fall, where precipitation totals generally remain elevated compared to the drier summer months. The reliance on such moisture becomes crucial as Boothbay transitions into the colder season, setting the stage for a serene, snow-covered environment as temperatures dip. Overall, December's precipitation marks a fitting conclusion to the year's weather patterns, highlighting a consistent and sometimes dramatic shift towards winter.

December Precipitation Trends in Boothbay

The chart displays monthly precipitation patterns in Boothbay, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84857111873611107471128111121
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Boothbay

As December arrives in Boothbay, the average humidity settles at 81%, reflecting a slight dip from the preceding months. This marks a pattern of gradual decrease, particularly from the more humid summer months, where July and June registered at 85% and 86%, respectively. The transition into winter showcases a notable shift; while humidity remains relatively high in comparison to the drier fall months, it signifies a stabilizing trend following November's 80%. This month is characterized by the calmness of early winter, illustrating that while the air may feel crisp, it still retains a comfortable level of moisture, ensuring that Boothbay's vibrant coastal beauty remains captivating throughout the season.

December Average Humidity in Boothbay

This chart illustrates the average monthly humidity levels in Boothbay, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%84%79%79%86%85%83%80%77%80%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Boothbay

As December rolls in, the UV Index in Boothbay, United States, dips to a low level of 2, allowing for a more relaxed outdoor experience. This drop in UV radiation signals a safe time for extended sunlight exposure, with a burn time of approximately 45 minutes before you need to seek shade. This trend of decreasing UV levels is consistent with the seasonal shift, as the summer months peak at very high indices, prompting shorter safe exposure times of just 15 minutes during May through August. As winter sets in, residents can enjoy the outdoors while remaining mindful of the lower UV risks. For those planning winter activities, remembering the changing UV Index is crucial; discover more at Boothbay UV Index.

Maximum UV Index Levels in Boothbay for December

The chart shows the monthly maximum UV Index (UVI) for Boothbay 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: Boothbay 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 Boothbay

In Boothbay, United States, December ushers in a serene atmosphere with 175 hours of sunshine, bringing a gentle close to the year's light-filled journey. As the year progresses, one can observe a clear trend: sunlight peaks in the summer months, with July and August basking in a remarkable 329 and 336 hours, respectively. Spring and early summer showcase a steady increase, culminating in the bright 293 hours of May. As autumn sets in, the daylight hours gradually decline, leading to the more subdued brightness of December, yet still offering a comforting glow. Though winter's chill begins to settle in, Boothbay's December sunlight remains a cherished presence, embodying the tranquil beauty of the season.

Monthly Sunshine Duration in Boothbay: December Highlighted

The December sunshine duration represents the total number of hours Boothbay 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.
JanFebMarAprMayJunJulAugSepOctNovDec147h188h259h244h293h328h329h336h286h219h187h175h
Data source: Boothbay December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Boothbay During December

In Boothbay, the likelihood of sunny weather reaches a modest 36% in December, reflecting a trend that sees a dip in sunshine during the winter months. This percentage is consistent with the preceding months of October and November, which also hover around similar figures. Notably, the chance of sunny days rises significantly in the spring, with March boasting the highest probability of 61%. However, December's relatively low sunshine percentage highlights the typical overcast skies that accompany the transition into winter, setting the scene for cozy indoor activities rather than outdoor adventures. As the year wraps up, Boothbay's weather serves as a reminder of the shifting seasons, where the promise of brighter days lies just a few months away.

Percentage of Sunny Days in December in Boothbay

The chart illustrates the percentage of sunny days in Boothbay 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 Boothbay experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec41%37%61%36%35%37%27%31%42%36%53%36%
Data source: Boothbay December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Boothbay in December

As December descends upon Boothbay, daylight hours dip to just 8 hours, marking the month's shortest days. This decline is a continuation of the trend observed since summer's peak, where daylight extended to a glorious 15 hours in June and July. As the seasons transition, the gradual reduction in daylight becomes evident, especially in the fall months of October and November, which offer 10 and 9 hours, respectively. This rhythmic shift showcases nature's cycle, inviting residents to embrace the cozy atmosphere of winter while anticipating the returning light in the coming months.

Average Daylight Hours in Boothbay for December

The chart illustrates the variation in daylight duration in Boothbay throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 18m10h 29m11h 57m13h 28m14h 45m15h 24m15h 3m13h 54m12h 27m10h 56m9h 37m8h 56m
Data source: Boothbay daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Boothbay

As December arrives in Boothbay, the winds maintain a consistent pace, averaging 3.3 m/s (7 mph)—a speed that mirrors the calm months of January and February. This steadiness hints at an overall trend of gentle breezes throughout the winter months, contrasting with the slightly stronger winds of early spring, peaking at 3.9 m/s (9 mph) in March. Interestingly, the summer months experience a noticeable dip, showcasing the calmest periods with winds dropping as low as 2.4 m/s (5 mph) in August. However, as the year draws to a close, the winds regain their gentle character, promising a serene winter experience in this picturesque coastal town.

Average December Wind Speed in Boothbay

The chart displays monthly wind speed patterns in Boothbay, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.33.33.93.53.03.42.72.43.13.03.23.3 m/s
Data source: Boothbay December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Boothbay Compares to Other Months

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

In December, temperatures range from a minimum of -23°C (-9°F) to a maximum of 15°C (60°F), with an average temperature of -1°C (30°F). The month sees considerable precipitation, totaling 121 mm (4.8 in) over about 10 days, accompanied by a humidity level of 81%. In contrast, January is slightly cooler, with temperatures dipping from a minimum of -24°C (-10°F) to a maximum of 13°C (55°F), and an average of -4°C (26°F). Precipitation decreases to 84 mm (3.3 in) over approximately 8 days, while humidity rises slightly to 85%. For a detailed look at weather trends during this time, check out Boothbay weather in January.

December and February exhibit fairly similar winter conditions, yet there are notable differences. December typically has a wider temperature range, with minimums dipping to -23°C (-9°F) and maximums reaching 15°C (60°F), leading to a chilly average of -1°C (30°F). In contrast, February sees slightly milder temperatures, with averages around -3°C (27°F) and maximums just a bit higher at 16°C (62°F). Precipitation amounts are higher in December at 121 mm (4.8 in), compared to 85 mm (3.3 in) in February, although both months experience precipitation on 10 days. The humidity also remains relatively high in both months, with December at 81% and February at 86%. For more detailed weather insights specific to February, you can refer to Boothbay weather in February.

In December, temperatures can drop as low as -23°C (-9°F), with an average of -1°C (30°F) and highs reaching 15°C (60°F). This month also sees higher precipitation, totaling 121 mm (4.8 in) over about 10 days, and a humidity level of 81%. In contrast, March experiences slightly milder conditions, with minimum temperatures around -17°C (3°F) and an average of 1°C (33°F); maximum temperatures can rise to 18°C (64°F). Precipitation in March is less, at 71 mm (2.8 in) over 8 days, accompanied by a humidity of 84%. For more details, you can check the specific conditions for Boothbay weather in March.

December and April weather present a stark contrast in temperatures and conditions. In December, temperatures can drop as low as -23°C (-9°F) and only average around -1°C (30°F), with a maximum of 15°C (60°F). The month sees significant precipitation, averaging 121 mm (4.8 in) over about 10 days, and maintains a high humidity level of 81%. In contrast, April experiences milder temperatures, with a minimum of -4°C (26°F) and an average of 7°C (44°F). The maximum temperature can reach 26°C (79°F), and while precipitation is slightly lower at 118 mm (4.6 in) over 12 days, humidity is also slightly less at 79%. For more specific insights on springtime weather, check out Boothbay weather in April.

In December, temperatures can plummet as low as -23°C (-9°F), with an average temperature of -1°C (30°F) and a maximum reaching only 15°C (60°F). The month is characterized by higher precipitation levels of 121 mm (4.8 in) over about 10 days and a humidity of 81%. In stark contrast, May brings much milder conditions, with minimum temperatures of 2°C (35°F) and average temperatures around 12°C (54°F). Maximum temperatures can rise to a pleasant 29°C (84°F), accompanied by lower precipitation levels of 73 mm (2.9 in) over the same number of days and slightly lower humidity at 79%. For a detailed look at what to expect, check Boothbay weather in May.

When comparing December and June weather, there's a striking contrast in temperature and precipitation levels. December experiences frigid temperatures, with a minimum of -23°C (-9°F) and an average of -1°C (30°F), while June brings warmth, featuring a minimum of 6°C (43°F) and an average of 18°C (65°F). Precipitation is more abundant in December, totaling 121 mm (4.8 in) over about 10 days, compared to June's 61 mm (2.4 in) spread over 9 days. Both months have relatively high humidity, with December at 81% and June slightly higher at 86%. For specific June weather details, you can visit Boothbay weather in June.

December and July present starkly contrasting weather conditions. In December, temperatures can plunge to a minimum of -23°C (-9°F) and average around -1°C (30°F), while highs reach only up to 15°C (60°F). This month also sees significant precipitation, totaling 121 mm (4.8 in) over approximately 10 days, accompanied by high humidity levels of 81%. In contrast, July experiences milder temperatures, with a minimum of 8°C (47°F) and an average of 21°C (71°F), peaking at a comfortable 34°C (94°F). This summer month features similar precipitation levels, at 110 mm (4.3 in) over the same number of days, but with slightly higher humidity at 85%. For more specifics on July weather, you can visit Boothbay weather in July.

December and August showcase distinct contrasts in weather. In December, temperatures plunge with a minimum of -23°C (-9°F) and an average of -1°C (30°F), often reaching a maximum of 15°C (60°F). The month experiences significant precipitation of 121 mm (4.8 in) over roughly 10 days, accompanied by a high humidity level of 81%. In stark contrast, August brings milder temperatures, with a minimum of 11°C (52°F), an average of 21°C (71°F), and a maximum of 33°C (91°F). The precipitation is lighter at 74 mm (2.9 in), occurring over 9 days, and humidity remains slightly higher at 83%. For those interested in more details on the weather in August, you can explore Boothbay weather in August.

December and September weather present a stark contrast. In December, temperatures can drop as low as -23°C (-9°F), with an average temperature around -1°C (30°F) and a maximum reaching 15°C (60°F). The month also sees significant precipitation, totaling 121 mm (4.8 in) over about 10 days, accompanied by a relatively high humidity of 81%. In comparison, September offers much milder conditions with minimum temperatures of 4°C (39°F) and an average of 17°C (64°F), peaking at a warm 30°C (86°F). With only 71 mm (2.8 in) of precipitation over 7 days and similar humidity at 80%, September is a much drier and warmer month. For more detailed information, check out Boothbay weather in September.

In December, the weather starkly contrasts with October, featuring much colder temperatures with a minimum of -23°C (-9°F) and an average of -1°C (30°F). While October enjoys milder conditions with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (77°F), December experiences a maximum temperature of only 15°C (60°F). Additionally, both months see significant precipitation, with December accumulating 121 mm (4.8 in) over about 10 days, compared to October's 128 mm (5.1 in) over 11 days. Humidity levels are slightly higher in December, averaging 81%, while October has a lower humidity level of 77%. For more detailed insights on October weather, you can check out Boothbay weather in October.

In December, the weather takes a colder turn compared to November, with temperatures ranging from a minimum of -23°C (-9°F) to a maximum of 15°C (60°F), resulting in an average temperature of -1°C (30°F). This is a marked drop from November, where temperatures ranged from -13°C (8°F) to 19°C (66°F) and averaged at 4°C (40°F). While both months experience similar precipitation levels, December sees a slight increase with 121 mm (4.8 in) over 10 days, compared to November’s 111 mm (4.4 in) over 11 days. Humidity remains quite high in both months, with December at 81% and November at 80%. For more details on the weather in November, you can visit Boothbay weather in November.

Compare Boothbay's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Boothbay

As December settles in Boothbay, the weather takes a notable turn, embracing a chill that sets it apart from the milder months of the year. Average temperatures drop significantly, and while maximum highs reach a moderate 15°C (60°F), the winter grip brings much colder nights. The increased humidity at 81% contributes to a crisp atmosphere, while the 121 mm of precipitation over about ten days underscores the wetness typical of this month. This combination of conditions makes December an enchanting yet stark contrast to the warmer seasons, transforming the landscape and inviting the spirit of the holidays. For those seeking more insights into the region's climate, check out Boothbay Climate.