December Weather in Black Mountain, United States

Last updated: February 24, 2025

In December, Black Mountain, United States, presents a captivating blend of winter chill and occasional warmth. With a maximum temperature reaching a mild 23°C (73°F) and an average of 6°C (42°F), residents experience a diverse range of weather. The minimum temperature can plummet to -11°C (13°F), creating a stark contrast. This month also sees 117 mm (4.6 in) of precipitation spread over 9 days, contributing to the region's lush landscapes. Coupled with 87% humidity, these conditions forge a vivid winter atmosphere, perfect for nature enthusiasts and outdoor adventurers alike.

December Temperature in Black Mountain

In December, Black Mountain experiences a notable shift towards winter with minimum temperatures dipping to a chilly -11°C (13°F), while average temperatures hover around 6°C (42°F). Despite the cold, daytime highs can still reach a pleasant 23°C (73°F), offering a brief respite from the winter chill. This month serves as a precursor to even harsher temperatures in January, but contrasts sharply with the milder conditions of September through November. As the year comes to a close, the cooling trend becomes evident, making December a time for cozy gatherings and festive cheer amid the transition to the coldest months ahead.

December Weather in Black Mountain: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Black Mountain, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394449576571747369604642
Data source: Temperature data for Black Mountain generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Black Mountain

In Black Mountain, December brings a notable shift in precipitation patterns, with an average of 117 mm (4.6 in) of rainfall over 9 days. This month typically sees a reduction in both precipitation and the number of wet days compared to the wetter autumn months like October and November, which average 164 mm (6.5 in) and 81 mm (3.2 in) respectively. December's precipitation is moderate, bridging the gap between the heavier rains of late fall and the drier conditions often experienced in January. This trend highlights a transition from the substantial moisture of the previous months, setting the stage for a winter that can be both crisp and occasionally wet.

December Precipitation Trends in Black Mountain

The chart displays monthly precipitation patterns in Black Mountain, 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.
JanFebMarAprMayJunJulAugSepOctNovDec92127109137144989912914016481117
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Black Mountain

In December, Black Mountain experiences a notable humidity level of 87%, mirroring the high moisture characteristic seen in November. Throughout the year, humidity in this region generally decreases from the winter months, with peaks in the early winter and late fall. The trend showcases steadily diminishing humidity from January's 86% down to a summer low of 74% in August. However, as the year wraps up, there’s a resurgence, with December's humidity tying with November's elevated levels. This cyclical pattern highlights how Black Mountain transitions from drier summer months back into the moisture-rich atmosphere of winter.

December Average Humidity in Black Mountain

This chart illustrates the average monthly humidity levels in Black Mountain, 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%85%84%82%83%82%80%74%75%79%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Black Mountain

As December rolls in, Black Mountain experiences a shift in UV exposure with an UV Index of 4, signaling a moderate level of intensity. This marked decrease from the extreme levels seen earlier in the year—especially during the summer months, when the UV Index peaked at 11—highlights a seasonal trend towards reduced sun exposure. With a longer burn time of 30 minutes, residents and visitors are afforded a bit more leeway during outdoor activities, encouraging mindful enjoyment of the cooler outdoors. The transition into winter reflects a natural ebb and flow of UV levels, making it crucial to stay informed about current conditions. For more detailed insights, check out the Black Mountain UV Index.

Maximum UV Index Levels in Black Mountain for December

The chart shows the monthly maximum UV Index (UVI) for Black Mountain 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.
JanFebMarAprMayJunJulAugSepOctNovDec468111111111010864
Data source: Black Mountain 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 Black Mountain

In Black Mountain, United States, the December sun offers a gentle farewell to the year's vibrant days, with 196 hours of sunshine illuminating the landscape. As winter approaches, the hours of sunlight diminish compared to the lush highs of summer, which peak at an impressive 347 hours in July. A notable trend emerges as the year progresses, with sunshine steadily increasing from 165 hours in January and culminating in the heights of mid-summer. Despite the decrease, December still enjoys more sunlight than earlier months, highlighting a gradual shift from vibrant spring and summer basking to the more subdued glow of winter, yet promising a return to radiance in the months to come.

Monthly Sunshine Duration in Black Mountain: December Highlighted

The December sunshine duration represents the total number of hours Black Mountain 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.
JanFebMarAprMayJunJulAugSepOctNovDec165h179h242h272h306h323h347h318h289h265h235h196h
Data source: Black Mountain December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Black Mountain During December

In December, Black Mountain enjoys a 44% chance of sunny weather, making it a month where clear skies are possible, yet not guaranteed. This figure reflects a slight drop from November's 57%, hinting that while the sunny days may linger, a shift toward cloudier conditions often accompanies the onset of winter. Looking at the broader trend, the likelihood of sun fluctuates significantly throughout the year—a peak in April's 56% contrasts with the summer months like June at just 31%. As the year draws to a close, December's sunlit opportunities stand out, inviting residents and visitors alike to embrace the crisp mountain air and the fleeting moments of winter sunshine.

Percentage of Sunny Days in December in Black Mountain

The chart illustrates the percentage of sunny days in Black Mountain 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 Black Mountain experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%38%39%56%36%31%42%41%51%42%57%44%
Data source: Black Mountain December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Black Mountain in December

In Black Mountain, United States, the daylight hours experience a clear and gradual shift throughout the year. Beginning with 10 hours of daylight in both January and February, the days start to lengthen by March, reaching 11 hours, and continue to grow longer through the spring months, peaking at 14 hours in May and June. However, as summer fades, daylight begins its steady decline, returning to 13 hours in August and reducing to 12 hours by September. This trend continues into the fall, with daylight diminishing to 10 hours by November. Ultimately, December brings the shortest days of the year, offering only 9 hours of daylight, as the cycle completes and nature prepares for the return of longer days in the coming spring.

Average Daylight Hours in Black Mountain for December

The chart illustrates the variation in daylight duration in Black Mountain throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 2m10h 53m11h 59m13h 6m14h 3m14h 30m14h 15m13h 25m12h 21m11h 14m10h 15m9h 46m
Data source: Black Mountain daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Black Mountain

As December settles over Black Mountain, the winds begin to whisper at an average speed of 2.2 m/s (5 mph), a slight dip from the more blustery months of the fall. Notably, the wind's gentle breeze mimics the pattern established in earlier winter months, where speeds hover consistently around the 5 mph mark. After a gradual decline through the sweltering summer, where July and August recorded their calmest days at around 1.5 to 1.6 m/s, the later months bring a refreshing resurgence. The winds pick up again in November, setting the stage for December’s soft, unhurried gusts, which invite residents and visitors alike to embrace the crisp mountain air while enjoying the scenic beauty of the season.

Average December Wind Speed in Black Mountain

The chart displays monthly wind speed patterns in Black Mountain, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.62.52.72.21.91.61.51.82.02.32.2 m/s
Data source: Black Mountain December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Black Mountain Compares to Other Months

The weather in Black Mountain 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 Black Mountain and find detailed weather information for every month.

December and January exhibit similar weather patterns but with notable differences. In December, the temperatures range from a minimum of -11°C (13°F) to a maximum of 23°C (73°F), with an average temperature of 6°C (42°F). The month experiences higher precipitation at 117 mm (4.6 in) over 9 days and maintains a humidity level of 87%. In contrast, January sees slightly colder conditions, with minimum temperatures dropping to -14°C (6°F) and an average of 4°C (39°F), while the maximum temperature remains close at 22°C (72°F). Both months have the same number of rainy days, but January has less precipitation at 91 mm (3.6 in) and slightly lower humidity at 86%. For more detailed information, you can check Black Mountain weather in January.

In December, temperatures in Black Mountain can drop as low as -11°C (13°F) and generally hover around an average of 6°C (42°F), with highs reaching up to 23°C (73°F). The month sees about 117 mm (4.6 in) of precipitation over approximately 9 days, accompanied by high humidity levels at 87%. In contrast, February experiences slightly milder temperatures, with a minimum of -7°C (19°F), an average of 7°C (45°F), and maximums of 26°C (79°F). Precipitation increases to 127 mm (5.0 in) over 13 days, with humidity slightly lower at 85%. For a detailed look at the weather in February, check out Black Mountain weather in February.

In comparing the weather of December and March, we observe notable differences in temperature and precipitation. December features a wider temperature range with minimums dipping to -11°C (13°F) and maximums reaching 23°C (73°F), while March has slightly milder temperatures, ranging from -7°C (19°F) for the minimum to a high of 31°C (88°F). Precipitation remains comparable between the two months, with December receiving 117 mm (4.6 in) over about 9 days and March experiencing 109 mm (4.3 in) over 13 days. Humidity levels are similarly high, though December is slightly more humid at 87% compared to March’s 84%. For more specific insights into March conditions, you can check the Black Mountain weather in March.

December and April present contrasting weather patterns, with December typically experiencing colder temperatures, ranging from a minimum of -11°C (13°F) to a maximum of 23°C (73°F), and an average temperature of 6°C (42°F). In contrast, April offers milder conditions, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 28°C (83°F) and an average of 14°C (57°F). Precipitation levels are somewhat similar, with December recording 117 mm (4.6 in) over 9 days, while April sees slightly higher rainfall at 137 mm (5.4 in) over 10 days. Despite this, April boasts lower humidity at 82%, compared to December's higher 87%. For more details on April weather, visit Black Mountain weather in April.

December and May present strikingly different weather patterns. In December, temperatures can plummet to a minimum of -11°C (13°F), swinging to a maximum of 23°C (73°F), with an average of 6°C (42°F). The month is characterized by significant rainfall, totaling 117 mm (4.6 in) over about 9 rainy days, paired with high humidity at 87%. In contrast, May sees milder conditions, with temperatures ranging from a minimum of 0°C (33°F) to a pleasant maximum of 31°C (89°F) and an average temperature of 18°C (65°F). Precipitation increases slightly to 144 mm (5.7 in) across approximately 12 days, but humidity remains relatively lower at 83%. For more insights on May weather, you can visit Black Mountain weather in May.

When comparing the weather in December and June, there's a stark contrast in temperatures and conditions. December sees a much cooler temperature range, with lows plummeting to -11°C (13°F) and an average around 6°C (42°F), while June offers a much milder experience, with temperatures starting at 7°C (45°F) and peaking at an average of 22°C (71°F). Precipitation also varies, with December receiving 117 mm (4.6 in) over 9 days, compared to June's 98 mm (3.9 in) over 14 days. Additionally, December has higher humidity levels at 87%, compared to June's 82%. For a detailed look at the weather specifics, you can check Black Mountain weather in June.

When comparing the weather in December and July, it's clear that the two months present stark contrasts. December experiences much colder temperatures, with a minimum of -11°C (13°F) and an average of 6°C (42°F), while July boasts a warmer climate, averaging 23°C (74°F) and reaching a maximum of 33°C (91°F). While December has a higher humidity level at 87%, July is slightly lower at 80%. In terms of precipitation, December receives more rainfall overall at 117 mm (4.6 in) over 9 days, compared to July's 99 mm (3.9 in) over 18 days. For more detailed insights into July weather, you can visit Black Mountain weather in July.

When comparing the weather in December and August, there are notable differences in temperature and humidity. December experiences a wider temperature range, with minimums dropping to -11°C (13°F) and maximums reaching up to 23°C (73°F), resulting in a chilly average of 6°C (42°F). In contrast, August boasts a much warmer climate, with temperatures ranging from a comfortable minimum of 13°C (55°F) to a peak of 32°C (89°F) and an average of 23°C (73°F). Additionally, December has higher humidity at 87%, compared to August's lower level of 74%. Precipitation is also present in both months, with December receiving 117 mm (4.6 in) over 9 days, while August sees slightly more at 129 mm (5.1 in) over 14 days. For a more detailed look at August weather, visit Black Mountain weather in August.

When comparing the weather of December and September, there are notable differences. December experiences colder temperatures, with a minimum of -11°C (13°F) and an average of 6°C (42°F), while September enjoys a milder climate, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 32°C (91°F). Additionally, December has a higher humidity level at 87%, contributing to a chillier feel, compared to September’s lower humidity of 75%. Precipitation is almost similar, with December receiving 117 mm over 9 days and September slightly higher at 140 mm over 11 days. To get more specific details about September weather in Black Mountain, you can visit Black Mountain weather in September.

When comparing December and October weather, it's evident that October generally experiences milder temperatures and slightly lower humidity levels. In December, temperatures can drop significantly, with a minimum of -11°C (13°F) and an average of 6°C (42°F), while October sees milder conditions with a minimum of -2°C (29°F) and an average of 15°C (60°F). Additionally, October has a higher maximum temperature, reaching up to 32°C (91°F), opposed to December's maximum of 23°C (73°F). Precipitation is also notable, with October receiving 164 mm (6.5 in) over 12 days compared to December's 117 mm (4.6 in) over 9 days. For more insights, you can check the detailed weather patterns at Black Mountain weather in October.

In comparing the weather between November and December, December generally displays cooler temperatures, with a minimum of -11°C (13°F) and an average of 6°C (42°F), contrasted with November's milder minimum of -7°C (20°F) and average of 8°C (47°F). Additionally, December experiences slightly higher precipitation levels, recording 117 mm (4.6 in) over 9 days, compared to November's 81 mm (3.2 in) across 8 days. Despite the increase in rainfall, both months share the same humidity level of 87%. For a more detailed look at November weather, check out Black Mountain weather in November.

Compare Black Mountain's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Black Mountain

December in Black Mountain presents a striking contrast to the milder months, with temperatures dropping significantly and adding a chill to the air. While daytime highs can still reach a pleasant 23°C (73°F), the average daytime temperature hovers around a brisk 6°C (42°F), and nighttime lows can plummet to -11°C (13°F). Precipitation is also a factor, with around 117 mm (4.6 in) falling over 9 days, contributing to the region's festive ambiance. With an average humidity of 87%, the air can feel quite damp, making it essential to bundle up when exploring the stunning winter landscape. For those curious about the broader climate trends in this picturesque area, you can learn more at Black Mountain Climate.