Last updated: February 24, 2025
In Castleton, United States, December brings a winter spectacle marked by a maximum temperature of 15°C (59°F) and an average chill of -2°C (28°F), with nighttime lows dipping to a brisk -28°C (-18°F). This month, residents can expect around 90 mm (3.5 in) of precipitation spread across 11 days, contributing to a damp atmosphere characterized by 84% humidity. Whether you're enjoying frosty mornings or cozy evenings by the fire, December in Castleton is a season that vividly captures the charm of winter.
In December, Castleton experiences a notable drop in temperatures as winter firmly takes hold. With minimums plunging to -28°C (-18°F), residents brace for the chill, while average temperatures hover around -2°C (28°F). The highs reach a modest 15°C (59°F), indicating a stark contrast with the milder conditions of fall. This month showcases one of the coldest periods of the year, with a significant dip compared to November’s average of 2°C (37°F). Overall, December's frigid climate sets the stage for winter activities, inviting cozy gatherings and the beauty of snow-covered landscapes.
In December, Castleton experiences an average precipitation of 90 mm (3.5 in) over approximately 11 days, marking a notable balance in the year's weather patterns. This month sees a slight dip in precipitation compared to October’s peak of 139 mm (5.5 in), but it remains consistent with November’s 102 mm (4.0 in). The trend reveals a gradual decline in rainfall as the year wraps up, transitioning from the wetter autumn months into winter. With December’s precipitation amount and frequency, residents can anticipate a refreshing chill in the air, complemented by the soft embrace of winter rains, nurturing the landscape as it prepares for the colder months ahead.
As the calendar shifts to December, Castleton experiences a noticeable transition in humidity levels. Following a gradual decline from January's 89% down to a low of 64% in August, the trend begins to reverse as the year concludes. December's humidity is recorded at 84%, marking a slight uptick from the preceding months. This increase is part of a pattern where humidity levels consistently rise again towards the year’s end, with notable peaks in November and December after the summer's drier months. The change hints at the crispness of the winter air and the cozy atmosphere as residents prepare for the colder season.
In December, Castleton experiences a lower UV Index of 2, placing it in the low exposure category with a burn time extending to 45 minutes. This marks a notable decrease from the peak levels seen in the summer months, when values soared as high as 10. As winter settles in, residents and visitors can enjoy longer periods outdoors with less concern for sunburn, a trend that continues from November's moderate levels. However, it's a good reminder that UV radiation is still present, and protective measures like sunscreen or clothing are wise even in these cooler months. For detailed insights throughout the year, check out the Castleton UV Index.
UV Risk Categories
December in Castleton offers a refreshing glimpse of sunshine, with 138 hours of bright daylight illuminating the winter season. While this marks a decrease from the sun-soaked peaks of July and August, which bask in 332 hours each, it still holds its own compared to the more glum months of the year. The trend shows a gradual decline from the summer’s abundant rays, with December acting as a transition into the quieter, sun-scarce months of winter. Despite the shorter days, residents and visitors can embrace the crisp air and festive spirit, making the most of the sunny interludes that punctuate the cold.
As December rolls in, the likelihood of encountering sunny weather in Castleton, United States, drops to a modest 25%, making it one of the cloudier months of the year. This decline in sunshine is notable when compared to the preceding months, particularly November, which boasts a sunnier 46% chance. Observing trends throughout the year, it's evident that the winter months generally show a downturn in sunshine, with December trailing behind January (34%) and February (29%) as well. While the festive season often brings joy and celebration, residents can expect a higher likelihood of overcast skies and, perhaps, a dusting of snow rather than bright, sunlit days, emphasizing the seasonal shift in Castleton's weather patterns.
As winter settles in, December in Castleton, United States, sees a notable decline in daylight, with an average of just 8 hours. This marks a significant drop from the vibrant 15 hours of sunlight enjoyed in the height of summer months like June and July. The gradual decrease can be traced back through the months, transitioning from 14 hours in May to 11 hours in March, highlighting the natural ebb and flow of daylight throughout the year. As days grow shorter, the cozy atmosphere of December invites a spirit of warmth and reflection, a gentle reminder of nature's cycles as we look forward to the eventual return of longer, sun-soaked days in the coming spring.
In Castleton, United States, the December winds bring slightly brisker conditions, with an average wind speed of 2.8 m/s (6 mph), marking a notable increase from the previous months. As the year progresses, we observe a gentle rise in wind speed starting in the early spring, peaking in March before tapering off through the warmer months of summer. Interestingly, November also experiences a slight uptick before December’s winds offer a refreshingly cooler breeze, typical of winter's approach. This pattern hints at the seasonal transitions that characteristically sweep through the town, making December's winds feel both invigorating and familiar as the colder days settle in.
The weather in Castleton 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 Castleton and find detailed weather information for every month.
In December, temperatures range from a minimum of -28°C (-18°F) to a maximum of 15°C (59°F), with an average temperature of -2°C (28°F). The month sees around 90 mm (3.5 in) of precipitation over about 11 days, with humidity at a comfortable 84%. In contrast, January experiences even colder conditions, with a minimum of -30°C (-22°F) and an average of -5°C (23°F), though it slightly warms to a maximum of 16°C (61°F). Precipitation decreases to 79 mm (3.1 in) over 10 days, accompanied by a rise in humidity to 89%. For more specific details, you can check Castleton weather in January.
December and February weather in Castleton exhibit notable similarities and differences. In December, temperatures range from a minimum of -28°C (-18°F) to a maximum of 15°C (59°F), with an average of -2°C (28°F). The month sees about 90 mm (3.5 in) of precipitation over 11 days, accompanied by a relatively high humidity of 84%. In contrast, February experiences slightly milder weather, with temperatures ranging from -24°C (-11°F) to a higher maximum of 21°C (69°F) and an average of -4°C (26°F). Precipitation in February is slightly less, totaling 86 mm (3.4 in) over 12 days, and humidity increases to 88%. Overall, while both months have cold temperatures and comparable moisture levels, February tends to be a bit warmer and wetter. For more details about February weather in Castleton, check this link: Castleton weather in February.
In December, temperatures can drop significantly, with a minimum of -28°C (-18°F) and an average of -2°C (28°F), while highs can reach up to 15°C (59°F). The month sees considerable precipitation, totaling 90 mm (3.5 in) over approximately 11 days, alongside relatively high humidity at 84%. In contrast, March experiences milder conditions, with minimum temperatures around -19°C (-3°F) and an average of 0°C (32°F), peaking at a maximum of 21°C (69°F). Precipitation is slightly lower in March at 74 mm (2.9 in) across 10 days, and humidity remains comparable at 86%. For more details on March weather, you can check Castleton weather in March.
In December, temperatures in Castleton can plunge as low as -28°C (-18°F), with an average temperature of around -2°C (28°F) and a maximum of 15°C (59°F). The month often sees about 90 mm (3.5 inches) of precipitation over 11 days, while humidity remains high at 84%. In contrast, April brings a significant warming trend, with minimum temperatures rising to -6°C (22°F) and maximums reaching a pleasant 26°C (79°F), resulting in an average temperature of 7°C (45°F). Precipitation increases to 118 mm (4.7 inches) over 14 days, but the humidity stays consistent at 84%. For a more detailed look at April weather conditions, check out Castleton weather in April.
December and May present starkly different weather experiences. In December, temperatures can plunge as low as -28°C (-18°F), with an average of -2°C (28°F) and a maximum of 15°C (59°F). Precipitation during the month totals around 90 mm (3.5 in) over 11 days, and the humidity remains quite high at 84%. In contrast, May sees much milder conditions, with temperatures ranging from a minimum of -1°C (31°F) to an average of 14°C (57°F), peaking at a warm 33°C (91°F). Although May has slightly less precipitation at 87 mm (3.4 in) spread over 13 days, the humidity is lower at 76%. For a closer look at what May has to offer, check out Castleton weather in May.
In December, the weather is markedly colder, with temperatures ranging from a frigid -28°C (-18°F) at minimum to a mild 15°C (59°F) at maximum, averaging around -2°C (28°F). This month experiences high humidity at 84% and sees approximately 90 mm (3.5 in) of precipitation over 11 days. In contrast, June brings a much warmer climate with minimum temperatures of 4°C (40°F) and maximums reaching up to 34°C (94°F), settling at an average of 19°C (66°F). June's precipitation is slightly less, at 80 mm (3.2 in), spread across 12 days, and the humidity is lower at 72%. For more detailed information, you can check Castleton weather in June.
The contrast between December and July weather is striking. December sees frigid temperatures, ranging from a chilling minimum of -28°C (-18°F) to an average of -2°C (28°F), while the maximum reaches only 15°C (59°F). The month is also marked by frequent precipitation, totaling 90 mm (3.5 in) over approximately 11 days, coupled with high humidity levels at 84%. In contrast, July boasts much milder conditions, with temperatures ranging from a minimum of 9°C (49°F) to an average of 22°C (72°F), peaking at a scorching 37°C (98°F). Rainfall is slightly higher at 114 mm (4.5 in) across 12 days, but the humidity is notably lower at 66%. For more detailed insights, check out Castleton weather in July.
December and August weather present a stark contrast in temperature and conditions. In December, temperatures often plummet, with a minimum of -28°C (-18°F) and an average around -2°C (28°F), while August boasts much milder conditions, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 33°C (92°F). Precipitation in December is slightly higher at 90 mm (3.5 in) across 11 days, compared to August's 83 mm (3.3 in) over 10 days, but the humidity is noticeably higher in December at 84%, versus 64% in August. For a more in-depth look at conditions during this summer month, check out Castleton weather in August.
December and September present stark contrasts in weather conditions. In December, temperatures can plummet to a chilling minimum of -28°C (-18°F) with an average of -2°C (28°F) and a maximum of 15°C (59°F), while September boasts a more moderate range, with minimums at -1°C (30°F) and maximums soaring to 32°C (91°F). Precipitation levels are also different, as December receives 90 mm (3.5 in) over approximately 11 days, compared to September's 69 mm (2.7 in) across just 7 days. Moreover, December's humidity sits at a frosty 84%, significantly higher than September's 72%. For a closer look at September weather patterns, visit Castleton weather in September.
The weather in December is notably colder than in October, with average temperatures hovering around -2°C (28°F) compared to October's warmer average of 11°C (51°F). December experiences much lower minimum temperatures, dropping to -28°C (-18°F), while October's minimum is milder at -4°C (25°F). Precipitation levels are slightly lower in December at 90 mm (3.5 in) over 11 days, in contrast to October's 139 mm (5.5 in) over 13 days. Notably, December's higher humidity at 84% adds to the chill, while October's humidity is a bit lower at 81%. For more information on the weather specifics in October, check out Castleton weather in October.
In comparing the weather of November and December, December tends to be slightly colder, with average temperatures dropping from November's 2°C (37°F) to -2°C (28°F). While November features a higher maximum temperature of 22°C (72°F), December's peak reaches 15°C (59°F). Precipitation levels are relatively similar, with December receiving 90 mm (3.5 in) over 11 days, compared to November's 102 mm (4.0 in) across 12 days. Additionally, humidity levels are slightly lower in December at 84%, down from November's 87%. For more detailed insights, check out Castleton weather in November.
As December settles over Castleton, the chill of winter becomes unmistakable, creating a stark contrast to the milder months that preceded it. With average temperatures hovering around -2°C (28°F), the landscape transforms into a serene winter wonderland, though lows can plummet to a brisk -28°C (-18°F). Precipitation is moderate, with about 90 mm falling over the month and nearly one-third of days seeing some level of moisture, suggesting the arrival of snow. With humidity levels reaching 84%, the air feels particularly crisp and invigorating. This combination of cold and moisture sets December apart, offering a unique character to the Castleton climate that’s both harsh and beautiful. For a deeper dive into the seasonal dynamics, visit Castleton Climate.