Last updated: February 24, 2025
In December, Dennis, United States experiences a significant chill, with temperatures ranging from a maximum of 15°C (60°F) to a minimum of -12°C (11°F), leading to an average of 4°C (40°F). The month is characterized by 80% humidity and 12 precipitation days, accumulating a total of 136 mm (5.4 in) of rain. These weather patterns create a wintery atmosphere, perfect for cozy indoor activities as residents navigate the colder, damp days of the season.
In Dennis, United States, December ushers in a significant chill with temperatures making a notable dip. The month showcases a minimum average of -12°C (11°F), which marks a transition into deep winter, while the average temperature hovers around 4°C (40°F). The thermometers peak at a maximum of 15°C (60°F), giving a brief respite from the biting cold. This trend signifies a steady decline from November's milder conditions, with the average moving downward from 9°C (48°F) to 4°C (40°F). As the month progresses, residents brace for the frosty embrace of winter, preparing for gatherings adorned with warm beverages amidst the crisp air.
December in Dennis, United States, marks a notable transition in precipitation patterns, delivering 136 mm (5.4 in) of rain over 12 days. This places December among the wetter months of the year, just under April's peak of 137 mm and slightly above the November total of 102 mm. What stands out is the consistent rainfall throughout the months leading to winter, with many months registering between 83 mm and 175 mm, reflecting a relatively stable climate. The increase in precipitation during December hints at a shift towards more persistent winter fronts, setting the stage for the wet conditions typical of the season. As the year closes, residents can expect a blend of rainy days, enhancing the holiday ambiance with a cozy, weathered backdrop.
In December, humidity levels in Dennis, United States, settle at a comfortable 80%, reflecting a slight increase from the previous month. This pattern marks the onset of winter, as the humidity remains relatively high compared to the drier summer months, which see averages around 75%. Notably, December's humidity levels mirror those of November, indicating a trend of elevated moisture content as the year draws to a close. Over the course of the year, humidity remains consistently high in the winter months, peaking in early spring before tapering off during the warmer summer season. This seasonal fluctuation creates a distinctive climate, ensuring Dennis experiences lush, damp winters and pleasantly humid summers.
In December, Dennis, United States, experiences a notable decrease in UV Index, dropping to a low value of 2. This shift indicates a transition from the very high UV levels seen throughout the summer and early fall months, where exposure times were critically low at just 15 minutes. With the arrival of winter, residents can enjoy longer safe exposure times of up to 45 minutes without the immediate risk of sunburn. This trend emphasizes the importance of seasonal awareness when it comes to sun safety; even in December, protecting your skin remains crucial, albeit with reduced intensity of UV rays. For more detailed information, please visit Dennis UV Index.
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In Dennis, United States, December brings a cozy close to the year with 165 hours of sunshine, a gentle decline from the vibrant peak of 346 hours in July. This month marks a noticeable dip compared to the sun-drenched days of summer, yet it still offers a charming glow amidst the winter chill. As the seasons shift, the average hours of sunlight gradually decrease from 298 hours in May to December's totals, reflecting the natural rhythm of the year. Despite the fading daylight, December's sunshine reminds us of the upcoming renewal in spring, setting the stage for brighter days ahead.
In Dennis, Massachusetts, December ushers in a notable dip in sunny weather, with only a 28% chance of clear skies. This marks a sharp contrast to the more favorable conditions seen in the spring months, where March enjoys a peak 57% likelihood of sunshine. As the year progresses towards winter, there's a discernible decline in sunshine, evident as the chances plummet from November's 52%. Therefore, if you're planning a visit in December, it's wise to prepare for a higher likelihood of cloudy days, reflecting a trend of reduced sunlight as the region settles into the heart of winter.
As December settles over Dennis, United States, daylight reaches its annual low, offering just 9 hours of light each day. This marks a continuation of the trend observed since November, where shorter days become the norm. The daylight hours begin their gradual decline in October, peaking in June with 15 hours. Following the summer months, the days slowly recede, providing a rhythmic ebb and flow of light throughout the year. This seasonal transition not only enhances the cozy atmosphere of winter but also serves as a reminder of the approaching longer days ahead, as the cycle resumes with the promise of brighter skies in the coming months.
As December settles in over Dennis, United States, the winds start to whisper a familiar tune. With an average wind speed of 6.6 m/s (15 mph), the gusts maintain a steady rhythm reminiscent of the preceding months. Notably, this marks a slight decrease from the stronger breeze of 7.1 m/s in January and 7.2 m/s in February, reflecting a seasonal trend that sees wind speeds gradually tapering off as the year draws to a close. The summer months bring softer winds, peaking at a gentle 5.2 m/s (12 mph) in July and further diminishing to a calm 4.8 m/s (11 mph) in August. Yet, as autumn rolls in, there's a subtle uptick, with November's winds at 6.7 m/s (15 mph) and a stable finish in December. This gentle decline showcases the region's transition, inviting residents to embrace the crisp air and the unique charm of the holiday season.
The weather in Dennis 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 Dennis and find detailed weather information for every month.
In December, temperatures can range from a chilly -12°C (11°F) to a mild 15°C (60°F), with an average temperature of 4°C (40°F). The month sees considerable precipitation, totaling 136 mm (5.4 in) over about 12 days, with humidity levels around 80%.
January, on the other hand, experiences slightly colder temperatures, with a minimum of -14°C (6°F) and a maximum of 13°C (55°F), leading to an average of 2°C (36°F). Precipitation decreases to 94 mm (3.7 in) over about 10 days, while humidity rises to 84%.
For more detailed insights into January weather, you can visit Dennis weather in January.
In December, temperatures generally range from a minimum of -12°C (11°F) to a maximum of 15°C (60°F), with an average of about 4°C (40°F). The month experiences significant precipitation, totaling 136 mm (5.4 in) over approximately 12 days, and the humidity level sits at around 80%.
In contrast, February features slightly cooler temperatures, with a minimum of -12°C (10°F) and a maximum of 11°C (53°F), leading to an average of 2°C (36°F). The total precipitation decreases slightly to 123 mm (4.8 in), also spread across 12 days, and the humidity rises to 84%. For more detailed weather insights, visit Dennis weather in February.
In December, temperatures range from a minimum of -12°C (11°F) to a maximum of 15°C (60°F), with an average of 4°C (40°F) and considerable precipitation of 136 mm (5.4 in) over 12 days. The humidity is relatively high at 80%.
In contrast, March sees slightly milder temperatures, with a minimum of -9°C (16°F) and a maximum of 13°C (56°F), averaging around 3°C (38°F). Precipitation decreases to 118 mm (4.7 in) over 10 days, while humidity rises slightly to 82%.
For more detailed insights about the weather in March, you can check Dennis weather in March.
In December, the weather tends to be much colder, with temperatures ranging from a frigid -12°C (11°F) at night to a mild 15°C (60°F) during the day, and an average temperature of around 4°C (40°F). There’s also significant precipitation, totaling 136 mm (5.4 in) over about 12 days, accompanied by a high humidity level of 80%. In contrast, April brings a more temperate climate, where the temperatures rise slightly, with a minimum of 1°C (33°F) and a maximum of 16°C (60°F), alongside an average of 7°C (46°F). The rainfall is similar in quantity, at 137 mm (5.4 in) over roughly 13 days, and humidity remains relatively high at 79%. For a more detailed look at the weather patterns, check out Dennis weather in April.
December and May present strikingly different weather conditions. In December, temperatures can plummet to a minimum of -12°C (11°F), with an average temperature of 4°C (40°F) and highs reaching 15°C (60°F). The month is marked by considerable precipitation, with around 136 mm (5.4 in) of rain spread over 12 days and high humidity levels at 80%. In contrast, May experiences milder temperatures, with a minimum of 5°C (41°F), an average of 12°C (53°F), and maximum temperatures of 21°C (70°F). Precipitation in May is slightly lower at 119 mm (4.7 in), also occurring over 12 days, but with a lower humidity of 75%. For more detailed insights on May weather, you can visit Dennis weather in May.
In December, the weather is quite cold, with temperatures ranging from a chilly minimum of -12°C (11°F) to a mild maximum of 15°C (60°F), averaging around 4°C (40°F). This month experiences considerable precipitation, with 136 mm (5.4 in) falling over about 12 days, contributing to a humidity level of 80%. In contrast, June brings much warmer temperatures, with a minimum of 10°C (51°F), an average of 17°C (63°F), and a maximum reaching 24°C (76°F). The precipitation in June is lower at 91 mm (3.6 in), occurring over 10 days, and the humidity is slightly lower at 78%. For a detailed look at weather patterns, check out Dennis weather in June.
December and July present strikingly different weather patterns. In December, temperatures can plummet to a minimum of -12°C (11°F) with an average of 4°C (40°F) and a maximum of 15°C (60°F). This month is characterized by significant precipitation, totaling 136 mm (5.4 in) over 12 days, alongside high humidity at 80%. In contrast, July offers a much warmer climate, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 29°C (84°F), averaging around 21°C (71°F). Precipitation is lighter in July, at 83 mm (3.3 in) over 9 days, and humidity is slightly lower at 76%. For more detailed weather insights, check out Dennis weather in July.
When comparing the weather in December and August, we see distinct seasonal contrasts. December experiences colder temperatures, with minimums dropping to -12°C (11°F) and an average around 4°C (40°F), while August offers warmer conditions, with minimum temperatures around 16°C (61°F) and average highs reaching 22°C (72°F). Precipitation levels are also noteworthy; December sees 136 mm (5.4 in) over 12 days, whereas August has less rainfall at 82 mm (3.2 in) across 8 days. Despite December's higher humidity at 80%, August remains relatively humid at 76%. For more specifics on August weather, you can check this link: Dennis weather in August.
Comparing December and September weather reveals a notable contrast in temperature and overall climate. In December, temperatures can drop to a minimum of -12°C (11°F), with an average of 4°C (40°F) and a maximum of 15°C (60°F), making it significantly colder than September. Conversely, September enjoys milder temperatures, with a minimum of 13°C (56°F), an average of 19°C (67°F), and a maximum of 25°C (78°F). Additionally, December experiences more precipitation, totaling 136 mm (5.4 in) over 12 days, compared to September's 118 mm (4.7 in) over 10 days. Humidity levels also differ slightly, with December at 80% and September at 75%. For more detailed information on September weather in this region, you can check Dennis weather in September.
In December, the weather tends to be significantly colder, with temperatures ranging from a minimum of -12°C (11°F) to a maximum of 15°C (60°F) and an average of around 4°C (40°F). In contrast, October experiences much milder temperatures, with a minimum of 4°C (39°F), an average of 15°C (59°F), and a maximum reaching 22°C (72°F). October also sees more precipitation at 175 mm (6.9 in) over 12 days compared to December's 136 mm (5.4 in) across the same number of days, although the humidity is slightly lower in October at 75% compared to December's 80%. For more details on October weather, you can visit Dennis weather in October.
In comparing the weather between November and December, December is notably colder, with an average temperature drop from 9°C (48°F) in November to 4°C (40°F). While November experiences milder conditions with a maximum temperature of 19°C (66°F), December's maximum reaches only 15°C (60°F). Precipitation increases in December to 136 mm (5.4 in) over 12 days, compared to November's 102 mm (4.0 in) over 10 days. Interestingly, both months maintain a humidity level of 80%. For a more detailed look at November's conditions, you can visit Dennis weather in November.
As December rolls in, Dennis transforms into a winter haven, marked by a notable drop in temperatures compared to the milder months earlier in the year. With the average temperatures hovering around a brisk 4°C (40°F), the chill sets in, frequently dipping to minimums that touch -12°C (11°F). Coupled with high humidity levels reaching 80%, the atmosphere feels crisp and refreshing. This month also welcomes more precipitation, contributing to the 136 mm (5.4 in) that falls over approximately 12 days, signaling the onset of the winter season. As the days grow shorter and the weather shifts, residents and visitors alike experience a unique charm that December brings to Dennis, creating a perfect backdrop for seasonal festivities. For a comprehensive overview of weather trends throughout the year, visit Dennis Climate.