Last updated: February 24, 2025
December in Bull Run, United States, showcases a chilly yet intriguing winter atmosphere. With maximum temperatures reaching a mild 20°C (69°F) and an average hover of 5°C (41°F), residents experience varied conditions, including lows plummeting to -11°C (13°F). The month sees a generous precipitation total of 90 mm (3.6 in) spread over approximately 9 days, creating a damp and humid backdrop with levels around 85%. This blend of cold temperatures and substantial moisture sets the stage for a stark yet picturesque winter landscape, inviting both locals and visitors to embrace the seasonal beauty.
In Bull Run, United States, December brings a distinct chill as temperatures begin to drop, marking a transition into winter. With minimum temperatures averaging around -11°C (13°F), residents can expect the cold to set in, although the average temperature hovers at a moderate 5°C (41°F), providing a hint of warmth amidst the wintry backdrop. The month peaks with a maximum temperature reaching 20°C (69°F), a reminder of the warmer days just past. This progression from the milder temperatures of November reflects a gradual decline, as December often serves as both a tranquil and brisk precursor to the harsher winter months that follow. As the year winds down, the landscape transforms, inviting cozy gatherings and festive cheer while the cold air reigns supreme.
In December, Bull Run experiences a notable decrease in precipitation, with 90 mm (3.6 in) of rain accumulating over 9 days, marking a shift from the preceding months. Compared to November's 85 mm and just shy of the wettest month, August's impressive 146 mm, this winter month exhibits a balanced wetness that sets the stage for the upcoming colder season. The consistent rainfall in December continues the trend of variable precipitation through the year, with spring months like April and May usually delivering even more, such as April's 102 mm. Overall, December balances moderate rain, creating a lively yet crisp atmosphere as the year draws to a close.
In December, Bull Run, United States, experiences a relative humidity of 85%, slightly lower than the 86% seen in the preceding months of November and the winter months of January and February. This trend illustrates a notable consistency in humidity levels throughout the winter, while spring and summer months show a gradual decline—from a humid 84% in April down to a more comfortable 59% in August. As the seasons transition back into cooler temperatures, humidity begins to rise again, peaking back to the mid-80s by late fall. Overall, December maintains a high humidity, contributing to the region's atmospheric richness just before the coldest months.
As winter settles in, the UV Index in Bull Run, United States, takes a noticeable dip in December, dropping back to a moderate level of 3, which is a refreshing change from the very high readings experienced during the summer months. From April through October, the UV Index consistently peaks at 9 or 10, demanding vigilance and protective measures due to significantly lower burn times—often just 15 minutes. However, as the year winds down, residents can enjoy outdoor activities with less concern for sun exposure, as the burn time extends to 30 minutes in December. This trend highlights the seasonal variability of UV radiation, providing a gentle reminder to stay informed about local conditions throughout the year. For more details, visit Bull Run UV Index.
UV Risk Categories
In Bull Run, United States, December often greets residents with a gentle decline in sunshine hours, recording about 190 hours of daylight. This month wraps up a year characterized by a clear upward trend from the cold, dark days of January, which starts with just 150 hours. As the seasons transition, the sunshine peaks in the vibrant summer months of June and July, where residents bask in an impressive 318 and 350 hours of sunlight, respectively. However, as autumn approaches, there's a gradual tapering off, with November witnessing 225 hours, and December following suit. Still, this final month offers more sunlight than January, maintaining a balance of brightness amid the winter chill, highlighting Bull Run's seasonal rhythm of light and life.
In December, Bull Run, United States, experiences a 39% chance of sunny weather, marking it as one of the less promising months for sun. This figure is relatively modest compared to other months, particularly November, which enjoys a higher 58% likelihood of sunshine. As we transition from the vibrant hues of fall into the colder winter season, the chances of clear skies begin to diminish. Interestingly, the year’s peak promise of sunny days comes in September with an impressive 55%, followed by the spring months of March and April, which showcase higher probabilities of sunlight. Despite December's largely overcast disposition, the allure of festive cheer and winter activities still make it an appealing time in Bull Run, even without the sun.
As the year comes to a close, Bull Run experiences the shortest daylight hours in December, with just 9 hours of sunlight. This decline in daylight follows a gradual increase from January's 9 hours, reaching a peak of 14 hours in the summer months of May through July. The trend clearly illustrates the shifting seasons, as daylight starts to wane significantly after the long, sun-filled days of summer. By December, daylight not only mirrors January's duration but also demonstrates a rhythmic cycle of seasonal changes that governs the region’s climate and environment. Embracing the cozy, darker days of winter allows residents to reflect on the year past while eagerly anticipating the return of longer days in the coming months.
As the year winds down in Bull Run, December presents a gentle shift in the atmosphere with an average wind speed of 2.8 m/s (6 mph), mirroring the tranquility of the preceding months. Following a year characterized by fluctuating breezes, where the winds peaked in March and April at 3.2 m/s (7 mph), the late autumn and winter months reveal a more subdued rhythm. Notably, July and August experienced the calmest conditions, with wind speeds dropping to around 1.8 m/s (4 mph). However, as the calendar turns to December, the winds begin to pick up slightly again, maintaining a consistent flow that encourages the final thoughts of the year to drift by with ease. This subtle return to moderate winds provides both a reflective ambiance and a peaceful backdrop for the goodbyes of the year.
The weather in Bull Run 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 Bull Run and find detailed weather information for every month.
In December, temperatures range from a minimum of -11°C (13°F) to a maximum of 20°C (69°F), with an average of 5°C (41°F). The month experiences about 90 mm (3.6 in) of precipitation over 9 days, coupled with high humidity at 85%. In contrast, January's temperatures dip slightly lower, with a minimum of -15°C (5°F) and a maximum of 21°C (70°F), averaging 3°C (37°F). January brings less precipitation, totaling around 60 mm (2.4 in) over 7 days, while humidity remains comparable at 86%. For more detailed information on January weather, you can visit Bull Run weather in January.
December and February exhibit notable differences in their weather patterns. In December, temperatures range from a minimum of -11°C (13°F) to a maximum of 20°C (69°F), while February sees slightly lower minimum temperatures at -15°C (5°F), but higher maximums reaching 27°C (81°F). Both months have an average temperature of 5°C (41°F). Precipitation levels are comparable, with December receiving 90 mm (3.6 in) over 9 days, and February slightly wetter at 95 mm (3.7 in) over 12 days. Humidity remains high in both months, with December at 85% and February a touch higher at 86%. For more detailed insights on the weather conditions in February, check the link: Bull Run weather in February.
December and March present contrasting weather patterns, showcasing the transition from winter to spring. In December, temperatures range from a chilly minimum of -11°C (13°F) to a pleasant maximum of 20°C (69°F), with an average of 5°C (41°F). Precipitation is relatively high at 90 mm (3.6 in) over 9 days, accompanied by a humidity level of 85%. In comparison, March sees a slight increase in temperatures, with minima around -7°C (20°F) and maxima reaching 28°C (82°F), averaging 8°C (47°F). Although precipitation decreases to 79 mm (3.1 in) over a similar number of days, humidity remains quite high at 86%, indicating a still moist atmosphere as the season changes. For more specific insights regarding Bull Run's weather in March, visit Bull Run weather in March.
In December, temperatures range from a frigid minimum of -11°C (13°F) to a mild maximum of 20°C (69°F), with an average of 5°C (41°F). The month sees about 90 mm (3.6 in) of precipitation over 9 days, accompanied by high humidity levels of 85%. In contrast, April witnesses a more moderate climate, with temperatures fluctuating between a low of -2°C (29°F) and a high of 34°C (93°F), averaging around 14°C (57°F). This month experiences slightly more precipitation at 102 mm (4.0 in) over 11 days, while humidity levels remain comparable at 84%. For a detailed look, you can visit Bull Run weather in April.
December and May exhibit significantly different weather patterns. In December, temperatures can range from a chilly minimum of -11°C (13°F) to a mild maximum of 20°C (69°F), with an average temperature around 5°C (41°F). The month experiences about 90 mm (3.6 in) of precipitation over 9 days, combined with high humidity levels averaging 85%. In contrast, May brings warmer conditions, with a minimum temperature of 2°C (36°F) and a maximum that can soar to 35°C (95°F), averaging 19°C (67°F). Precipitation increases to 125 mm (4.9 in) over 12 days, yet humidity is somewhat lower at 78%. For more details on the weather in May, check this link: Bull Run weather in May.
December and June showcase contrasting weather patterns, highlighting the shift from winter to summer. In December, temperatures can dip as low as -11°C (13°F) with an average of 5°C (41°F) and maximum highs reaching 20°C (69°F). The month sees about 90 mm (3.6 in) of precipitation spread across 9 days, accompanied by high humidity levels at 85%. In stark contrast, June brings warmer temperatures with minimums around 10°C (50°F), averaging 24°C (75°F), and maximums soaring to 36°C (98°F). Rainfall in June increases slightly to 108 mm (4.3 in) over approximately 12 days, but humidity remains lower at 79%. For more detailed insights on June weather conditions, visit Bull Run weather in June.
When comparing the weather in December and July, it’s clear that these two months present vastly different climates. December sees temperatures ranging from a chilly minimum of -11°C (13°F) to a comfortable maximum of 20°C (69°F), with an average of about 5°C (41°F). The month experiences around 90 mm (3.6 in) of precipitation over 9 days and high humidity levels at 85%. In contrast, July boasts significantly warmer temperatures, with minimums of 14°C (58°F) and maximums that can soar up to 39°C (103°F), averaging 27°C (81°F). July also has a bit more precipitation at 109 mm (4.3 in) spread across 11 days, but lower humidity at 70%. For more specific information on July weather, check out Bull Run weather in July.
December and August present strikingly different weather patterns. In December, temperatures can plunge to a minimum of -11°C (13°F) and rarely exceed 20°C (69°F) with an average of around 5°C (41°F). The month experiences higher humidity at 85% and receives about 90 mm (3.6 in) of precipitation over approximately 9 days. In contrast, August brings warm conditions with minimum temperatures of 14°C (58°F) and maximums reaching as high as 38°C (100°F), averaging around 25°C (78°F). Precipitation increases significantly to 146 mm (5.7 in) over about 15 days, but humidity is notably lower at 59%.
For more detailed information about August weather, you can visit Bull Run weather in August.
December and September present contrasting weather patterns. In December, temperatures can plummet to a minimum of -11°C (13°F), while the average hovers around 5°C (41°F) and can peak at 20°C (69°F), leading to a distinct winter chill. The month experiences about 90 mm (3.6 in) of precipitation over approximately 9 days, with humidity levels rising to 85%. Conversely, September boasts much warmer conditions, with minimum temperatures around 5°C (42°F) and an average of 22°C (72°F), reaching highs of 37°C (99°F). Despite slightly higher precipitation at 95 mm (3.7 in) over 11 days, humidity is significantly lower at 68%. For more detailed information, check out Bull Run weather in September.
In comparing the weather between October and December, October is notably warmer, with average temperatures reaching 17°C (62°F) and maximums soaring up to 36°C (97°F), while December experiences a more frigid range, with average temperatures at 5°C (41°F) and maximums peaking at 20°C (69°F). Both months see a fair amount of precipitation, with December receiving 90 mm (3.6 in) over 9 days and October slightly more, at 108 mm (4.3 in) across 8 days. Humidity levels are relatively high in both months, with October at 80% and December just a touch higher at 85%. For more detailed insights about October weather, you can explore Bull Run weather in October.
December experiences a slightly colder climate compared to November, with average temperatures dropping from 8°C (47°F) in November to around 5°C (41°F) in December. Notably, December sees lower minimum temperatures, plunging to -11°C (13°F), while November's minimum is a milder -5°C (23°F). Precipitation levels remain comparable, with December receiving 90 mm (3.6 in) over 9 days and November having 85 mm (3.3 in) over 7 days. Humidity is also quite similar, at 85% in December and 86% in November. For a more detailed look at the weather during this time, you can check Bull Run weather in November.
As December sets in at Bull Run, the weather shifts dramatically, presenting a sharp contrast to the milder temperatures of previous months. With an average temperature hovering around 5°C (41°F) and an occasional maximum of 20°C (69°F), it's a month that demands layers and preparation for cold spells, as the mercury can dip as low as -11°C (13°F). The atmospheric humidity peaks at a notable 85%, contributing to the brisk and often damp conditions. Additionally, with about 90 mm (3.6 in) of precipitation spread over 9 days, December brings a mix of rain and the possibility of early winter snow, making the landscape take on a distinctly seasonal charm. For a more detailed look at what to expect, explore the Bull Run Climate.