Last updated: February 24, 2025
December in Chapel Hill, United States, brings a chilly embrace characterized by a maximum temperature of 23°C (73°F) and an average low of -7°C (19°F). With an average temperature of 8°C (46°F), residents experience a clear shift into winter. This month also sees 107 mm (4.2 in) of precipitation over 9 rainy days, contributing to the region's humidity level of 86%. As the year draws to a close, the combination of crisp air and occasional rainfall makes for a uniquely atmospheric December in this vibrant town.
In Chapel Hill, United States, December ushers in a noticeable chill as temperatures typically range from a minimum of -7°C (19°F) to a maximum of 23°C (73°F), with an average hovering around 8°C (46°F). This month signifies a shift towards winter, with colder lows compared to preceding months, particularly when juxtaposed with the mild late fall temperatures of November. As the landscape transitions, residents can expect crisp, cool days perfect for bundled-up outings and cozy indoor activities. The overall trend points toward a gradual decline in temperatures as the year draws to a close, making December a time to savor seasonal festivities amidst the encroaching winter chill.
In December, Chapel Hill experiences a mild resurgence in precipitation, with 107 mm (or 4.2 inches) of rain spread across 9 days. This marks a notable shift from the drier months of November and October, where rainfall amounts dipped to 81 mm and 97 mm, respectively. December's totals indicate a trend toward wetter conditions as the year closes, reflecting a steady increase in precipitation during the late fall and winter months. As temperatures begin to chill, the combination of rain and cooler weather introduces a refreshing atmosphere, often blending the hustle of the holiday season with the serene beauty of the winter landscape.
In December, Chapel Hill experiences a notable increase in humidity, reaching 86%, the highest monthly level of the year. This uptick follows a generally stable trend throughout the preceding months, where humidity levels hover around the low to mid-80s. Notably, November and December showcase elevated humidity, perhaps hinting at the onset of winter’s chill. As the year closes, the atmosphere becomes more saturated, creating a cozy but damp environment that contrasts with the drier fall months of September and October. Overall, December's humidity not only signifies seasonal change but also sets the stage for the cold, moist conditions that characterize winter in this charming Southern town.
In December, Chapel Hill experiences a moderate UV Index of 3, suggesting that while sun exposure is relatively safe, it's still wise to stay protected. This marks a noticeable decline from the extreme levels seen in the summer months, where the index peaked at 11—indicating a burning time of just 10 minutes. As the year wraps up, the sun’s intensity lessens significantly compared to the high levels recorded earlier, such as 11 in June and July, dropping to 30 minutes of burn time in December. This trending shift emphasizes the changing seasons and the importance of adjusting sun protection accordingly. For more information, check out the Chapel Hill UV Index.
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In December, Chapel Hill experiences a notable dip in sunshine hours compared to the vibrant summer months, with 203 hours of glorious sunlight. This transition marks the end of a gradual decline that begins in the peak sunshine month of July when residents basked in 352 hours of radiant light. As the seasons shift, the sunlight tapers off, yet December still offers a substantial amount, reminiscent of the fall months. The trend reflects a clear pattern: from the bustling spring blooms in April and May, reaching 284 and 306 hours, respectively, sunlight gradually wanes, hinting at the cozy embrace of winter. Those in Chapel Hill can relish the December sunshine, which, though diminished, still provides an inviting warmth amidst the chilly air, encouraging residents to savor the last flickers of the year’s light before winter takes full hold.
In December, Chapel Hill experiences a 45% chance of sunny weather, which reflects a slight decline from the more promising 63% of sunlight seen in November. This trend of decreasing sunshine is part of a seasonal pattern, as the area transitions from the milder late fall months into winter. Notably, December's sunshine likelihood remains higher than several summer months like June and July, suggesting that while the days may grow shorter and cooler, there’s still a decent opportunity to enjoy clear skies. As the year closes, residents can anticipate a mix of sunny intervals amidst the chill of winter, underscoring the unique character of December weather in this charming Southern town.
In Chapel Hill, December marks the transition into the shortest days of the year, where daylight dwindles to just 9 hours. This decline in daylight reflects a broader trend throughout the fall months, starting from 10 hours in November. As the year progresses, daylight hours experience a notable rise from the winter months into spring, peaking at 14 hours during the long days of summer in June through July. Following this peak, daylight begins to gradually recede, a pattern seen as the seasons shift back into fall, where hours of light drop to 10 hours in both November and December. This cyclical rhythm highlights the natural ebb and flow of daylight that defines each month in this vibrant part of the United States.
As December unfolds in Chapel Hill, the average wind speed settles at 2.9 m/s (7 mph), demonstrating a slight increase compared to the preceding months. This marks a continuation of the trend seen in November when the average wind also registered at 3.0 m/s (7 mph). Notably, the wind speed in December remains consistent with the spring months of March and April, which both hover around similar averages. After the more languid breezes of summer, where winds dipped to 2.0 m/s (5 mph) in August, December ushers in a refreshing change before the calm of winter, as frosty air invigorates the atmosphere. The month closes out the year with a gentle but persistent breeze, ideal for crisp winter strolls through Chapel Hill's charming streets.
The weather in Chapel Hill 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 Chapel Hill and find detailed weather information for every month.
In December, temperatures in the region range from a minimum of -7°C (19°F) to a maximum of 23°C (73°F), with an average of 8°C (46°F). The month sees a total precipitation of 107 mm (4.2 in) spread over 9 days, coupled with a humidity level of 86%. Conversely, January experiences colder conditions, with minimum temperatures dropping to -15°C (6°F) and a slightly higher maximum of 25°C (77°F), while the average temperature hovers around 6°C (43°F). Precipitation decreases to 89 mm (3.5 in), also occurring over 9 days, and humidity is marginally lower at 85%. This comparison illustrates a notable drop in minimum temperatures from December to January, despite a similar pattern in precipitation and humidity levels. For more detailed information, you can visit Chapel Hill weather in January.
December and February both present cool temperatures, but February tends to be slightly warmer on average. In December, temperatures range from a minimum of -7°C (19°F) to a maximum of 23°C (73°F), with an average of 8°C (46°F). In contrast, February features a slightly increased average temperature of 9°C (48°F), with highs reaching up to 27°C (81°F). Additionally, February experiences a bit more precipitation, totaling 117 mm (4.6 in) over 11 days, compared to December’s 107 mm (4.2 in) over 9 days. The humidity levels are relatively high in both months, with December at 86% and February at 82%. For a more detailed look at February weather in Chapel Hill, check out Chapel Hill weather in February.
When comparing the weather in December and March, December experiences colder temperatures, with an average of 8°C (46°F) and a maximum of 23°C (73°F). In contrast, March sees a slight rise in temperatures, averaging 11°C (53°F), with highs reaching up to 31°C (88°F). Precipitation is slightly higher in December at 107 mm (4.2 in) over 9 days, compared to March's 84 mm (3.3 in) spread over 10 days. Humidity is also higher in December, at 86%, compared to 81% in March. For more details on the weather specific to March, visit Chapel Hill weather in March.
When comparing the weather in December and April, notable differences emerge in temperature and precipitation patterns. In December, temperatures range from a chilly minimum of -7°C (19°F) to a comfortable maximum of 23°C (73°F), with an average of 8°C (46°F). The month experiences about 107 mm (4.2 in) of precipitation over approximately 9 days, accompanied by relatively high humidity at 86%. In contrast, April boasts a milder climate, with temperatures ranging from -1°C (31°F) at night to a warm maximum of 31°C (88°F) during the day, leading to an average temperature of 16°C (62°F). April sees slightly higher precipitation at 116 mm (4.6 in) over 10 days, but humidity is lower at 80%. For more detailed insights, you can check out Chapel Hill weather in April.
December and May exhibit markedly different weather patterns. In December, temperatures range from a chilly minimum of -7°C (19°F) to a maximum of 23°C (73°F), with an average temperature of 8°C (46°F). The month typically experiences around 107 mm (4.2 in) of precipitation over approximately 9 days, accompanied by relatively high humidity at 86%. In contrast, May sees a significant warming trend, with minimum temperatures at 4°C (39°F) and maximum temperatures reaching as high as 36°C (97°F), resulting in an average of 21°C (70°F). Although May has slightly higher precipitation at 118 mm (4.6 in) over 11 days, the humidity is marginally lower at 81%. For more specifics on May weather, you can check Chapel Hill weather in May.
December and June present distinctly different weather patterns. In December, temperatures can drop to a minimum of -7°C (19°F) while averaging around 8°C (46°F), with a maximum of 23°C (73°F); it is also characterized by high humidity at 86% and significant precipitation of 107 mm (4.2 in) over about 9 days. In contrast, June boasts milder temperatures, with a minimum of 12°C (55°F) and an average of 24°C (76°F), peaking at a high of 36°C (97°F). Despite slightly higher precipitation in June at 121 mm (4.8 in) over 13 days, the humidity is lower at 81%. For a detailed look at what to expect, check out Chapel Hill weather in June.
December and July present contrasting weather conditions. In December, temperatures can drop as low as -7°C (19°F), with an average around 8°C (46°F) and occasional highs reaching up to 23°C (73°F). Precipitation is moderate, totaling 107 mm (4.2 in) over about 9 days with high humidity levels of 86%. In contrast, July experiences much warmer temperatures, with a minimum of 16°C (61°F) and an average of 27°C (80°F), soaring to a maximum of 37°C (99°F). Rainfall is slightly higher at 114 mm (4.5 in) spread over 14 days, and humidity remains lower at 81%. For a detailed exploration of July weather, you can visit Chapel Hill weather in July.
The weather in December is markedly colder compared to August, with average temperatures ranging from a minimum of -7°C (19°F) to a maximum of 23°C (73°F), while August boasts a much warmer temperature range of 15°C (59°F) to 36°C (97°F). December also experiences higher humidity levels at 86%, compared to August's 80%, although August sees more precipitation days at 15 compared to December's 9. Additionally, August has slightly higher total rainfall, with 128 mm (5.1 in) compared to December's 107 mm (4.2 in). For a more detailed overview, you can check the link: Chapel Hill weather in August.
When comparing the weather in December and September, notable differences emerge. December experiences a cooler range, with temperatures dipping as low as -7°C (19°F) and averaging around 8°C (46°F), while September boasts much warmer conditions, featuring a minimum temperature of 9°C (48°F) and an average of 23°C (74°F). The maximum temperature in December reaches up to 23°C (73°F), but this is significantly lower than September's peak of 35°C (96°F). Both months see a similar number of rainy days, with December receiving 107 mm (4.2 in) and September slightly more at 128 mm (5.1 in), though September's humidity is lower at 79% compared to December's 86%. For a detailed view of what to expect, check out Chapel Hill weather in September.
December features significantly colder temperatures compared to October, with a minimum temperature dropping to -7°C (19°F) and an average of 8°C (46°F), while October enjoys milder conditions with a minimum of 2°C (36°F) and an average of 18°C (65°F). The maximum temperatures in December peak at 23°C (73°F), providing a stark contrast to October's highs reaching 36°C (98°F). Precipitation levels in both months are similar, with December seeing 107 mm (4.2 in) compared to October's 97 mm (3.8 in), but both months experience rainfall on about 9 days. Additionally, December's humidity is slightly higher at 86%, compared to October's 80%. For more specifics on October weather, you can check Chapel Hill weather in October.
In comparing the weather of December and November, December tends to be cooler overall, with average temperatures ranging from a minimum of -7°C (19°F) to a maximum of 23°C (73°F), compared to November's temperatures, which range from -4°C (25°F) to 29°C (84°F). While December experiences slightly more precipitation, totaling 107 mm (4.2 in) over 9 days, November has 81 mm (3.2 in) of rainfall over just 7 days. Humidity levels remain relatively stable, at 86% in December and 85% in November, highlighting a consistent moisture presence as the year draws to a close. For a more detailed look at November weather, visit Chapel Hill weather in November.
In December, Chapel Hill experiences a significant shift in weather as temperatures dip compared to the milder months preceding it. The cool air brings an average chill that contrasts sharply with the warmer autumn days, and the occasional frost reminds residents of winter's arrival. With nearly nine days of precipitation, this month is wetter than many others, contributing to the high humidity levels that linger in the air. This combination of cooler temperatures and increased moisture creates a unique atmosphere perfect for cozy indoor gatherings and festive activities. For a deeper dive into Chapel Hill's weather patterns, visit Chapel Hill Climate.