December Weather in Lookout Mountain, United States

Last updated: February 24, 2025

In December, Lookout Mountain, United States, experiences a captivating winter climate characterized by temperatures that range from a maximum of 23°C (73°F) to a minimum of -8°C (18°F), with an average hovering around 8°C (46°F). This month sees 139 mm (5.5 in) of precipitation spread across approximately 10 days, contributing to the area's lush scenery. The humidity levels peak at a notable 88%, adding a crisp freshness to the air. Whether you're embracing the tranquil beauty of a snowy landscape or seeking the thrill of winter activities, December offers a unique blend of conditions that highlight the charm of Lookout Mountain during this festive season.

December Temperature in Lookout Mountain

In December, Lookout Mountain ushers in a chilly ambiance as temperatures dip, showcasing the region's winter allure. The month typically experiences a minimum temperature around -8°C (18°F), with an average hovering at 8°C (46°F), and reaching a maximum of about 23°C (73°F). This reflects a notable trend from the cooler late autumn months of November, where temperatures were slightly warmer, demonstrating a gradual descent into winter. With the colder days, the enchanting landscape transforms, inviting visitors to enjoy the crisp air and serene beauty of the season while preparing for the frosty chill of the year ahead. The shift to December establishes a clear transition into winter, promising a unique experience for both nature lovers and adventure seekers alike.

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

The chart illustrates December temperature patterns in Lookout Mountain, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434854607076797874645046
Data source: Temperature data for Lookout Mountain generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Lookout Mountain

December in Lookout Mountain sees a noteworthy precipitation level of 139 mm (5.5 in), marking a significant uptick that reflects the winter’s onset. Spanning 10 days of rainfall, this month contributes to a wetter end of the year, following November's drier spell with only 72 mm (2.8 in) over the same number of days. The winter months typically show increased precipitation, and December is no exception, showcasing a transition from autumn's milder rains to the more torrential downpours often associated with the season. As the landscape transforms under winter's grip, December’s moderate rain helps to rejuvenate the region, ensuring that Lookout Mountain remains lush even during the colder months.

December Precipitation Trends in Lookout Mountain

The chart displays monthly precipitation patterns in Lookout 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.
JanFebMarAprMayJunJulAugSepOctNovDec991711691569612010612110613372139
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Lookout Mountain

December in Lookout Mountain, United States, ushers in a slight rise in humidity, reaching 88%, which is among the highest for the year, just edging out the preceding months of January and November. This increase reflects the region's tendency for higher humidity levels during the winter months, with a notable drop in humidity observed from late summer through early autumn, peaking at a low of 64% in September. The transition from 64% in September to December’s 88% highlights a pronounced seasonal shift, illustrating Lookout Mountain's unique climate rhythms as it bids farewell to the dry months and embraces the cooler, more humid days of winter. Overall, December exemplifies a return to the moisture-laden conditions characteristic of the area during the winter.

December Average Humidity in Lookout Mountain

This chart illustrates the average monthly humidity levels in Lookout 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.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Lookout Mountain

As December arrives in Lookout Mountain, the UV Index notably dips to 3, categorizing the exposure as moderate with a burn time of 30 minutes. This decrease reflects a general trend seen throughout the winter months, where UV levels are typically lower compared to the sun-drenched summer. From the extreme highs of 11 in June and July, the UV Index steadily declines through the fall, finally settling on a more manageable level in December. While it's still essential to be mindful of sun exposure, the cooler weather brings a reprieve from the intense UV rays seen earlier in the year. For more detailed information, visit Lookout Mountain UV Index.

Maximum UV Index Levels in Lookout Mountain for December

The chart shows the monthly maximum UV Index (UVI) for Lookout 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.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
Data source: Lookout 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 Lookout Mountain

As the year winds down, December in Lookout Mountain offers a delightful contrast to the vibrant summer months, with 168 hours of sunshine illuminating the landscape. While this figure is lower than the summer peaks—where July basks in 317 hours of radiant light—it still provides a cozy ambiance amid the winter chill. The trend showcases a gradual decline in sunshine hours as the seasons shift, starting from the robust sunshine of 302 hours in May down to December's softer glow. This descent highlights a serene transition into the colder months, inviting residents and visitors alike to savor the unique charm of Lookout Mountain's winter skies. As the year wraps up, December brings a tranquil yet nourishing light that continues to endear this picturesque location throughout the year.

Monthly Sunshine Duration in Lookout Mountain: December Highlighted

The December sunshine duration represents the total number of hours Lookout 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.
JanFebMarAprMayJunJulAugSepOctNovDec146h153h217h265h302h300h317h305h276h253h226h168h
Data source: Lookout Mountain December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lookout Mountain During December

In December, Lookout Mountain experiences a 37% chance of sunny weather, slightly below the seasonal average for the month. This month reflects the tail end of a trend where sunny days are more prevalent in the late fall, peaking at 57% in November. As the year transitions into winter, the likelihood of sunshine dips modestly, mirroring the fluctuations seen throughout the year, particularly in months like May and October, which also hover around the 30% to 40% range. Overall, while December is not the sunniest month, it maintains a fair opportunity for clear skies amidst the onset of colder weather.

Percentage of Sunny Days in December in Lookout Mountain

The chart illustrates the percentage of sunny days in Lookout 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 Lookout Mountain experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%38%36%52%31%37%39%35%49%36%57%37%
Data source: Lookout Mountain December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lookout Mountain in December

In Lookout Mountain, December marks the transition into the winter months, where daylight begins to wane, offering only 9 hours of sunlight—a noticeable shift from the brighter days of summer. As the year progresses from January’s consistent 10 hours of daylight through the longer days of June and July, nature slowly retreats into the darker months. February maintains the same daylight as January, while March sees a slight increase, hinting at the arrival of spring. However, by November, daylight once again dwindles to 10 hours, leading into December's early sunsets. This cyclical rhythm illustrates the region's seasonal variation, inviting residents to embrace the cozy charms of winter.

Average Daylight Hours in Lookout Mountain for December

The chart illustrates the variation in daylight duration in Lookout 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 5m10h 55m11h 59m13h 5m14h14h 27m14h 12m13h 23m12h 20m11h 15m10h 18m9h 49m
Data source: Lookout Mountain daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Lookout Mountain

As December settles in over Lookout Mountain, the average wind speed picks up slightly to 2.7 m/s (6 mph), mirroring the gentle breezes of late winter. This month marks a subtle resurgence compared to the calmer summer months, where winds dipped to a meandering 1.6 m/s (4 mph) in August and held steady at similar low speeds through July and September. Interestingly, December's winds are more in line with the early months of the year, as January and February also saw averages of 2.5 m/s and 2.7 m/s, respectively. This late-year uptick suggests a return to cooler, crisper weather that invites both adventure and contemplation on the mountain, encapsulating the season's transition in a whisper of wind.

Average December Wind Speed in Lookout Mountain

The chart displays monthly wind speed patterns in Lookout 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.72.82.52.42.11.81.61.82.12.32.7 m/s
Data source: Lookout Mountain December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Lookout Mountain Compares to Other Months

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

In December, temperatures range from a chilly minimum of -8°C (18°F) to a pleasant average of 8°C (46°F), with maximums reaching up to 23°C (73°F), accompanied by significant precipitation totaling 139 mm (5.5 in) over about 10 days and high humidity at 88%. Conversely, January experiences even colder minimum temperatures dropping to -13°C (9°F) and a slight decline in the average temperature to 6°C (43°F). Despite these colder conditions, January has a marginally lower total precipitation of 99 mm (3.9 in) over the same 10 days, with humidity slightly decreasing to 87%. For more detailed insights on the January weather, you can check out Lookout Mountain weather in January.

December and February display notable differences in weather patterns, despite being consecutive winter months. In December, the temperature ranges from a minimum of -8°C (18°F) to a maximum of 23°C (73°F), with an average of 8°C (46°F). This month also sees about 139 mm (5.5 in) of precipitation over approximately 10 days, and humidity levels peak at 88%. Conversely, February brings slightly milder temperatures, with a minimum of -7°C (20°F) and a maximum of 26°C (79°F), averaging 9°C (48°F). Precipitation increases to 171 mm (6.7 in) across 14 days, while humidity remains relatively stable at 87%. For a more detailed look at February weather in this region, you can visit Lookout Mountain weather in February.

December and March weather exhibit notable contrasts. In December, temperatures range from a minimum of -8°C (18°F) to a maximum of 23°C (73°F), with an average of 8°C (46°F). The month sees a precipitation level of 139 mm (5.5 in) over about 10 days, alongside a high humidity of 88%. In comparison, March features slightly improved temperatures, with a minimum of -6°C (22°F), an average of 12°C (54°F), and a maximum of 29°C (84°F). Precipitation in March increases to 169 mm (6.7 in), spread across approximately 13 days, while humidity remains just a bit lower at 85%. For those interested in the specifics of March weather, Lookout Mountain weather in March provides detailed information.

In comparing December and April weather, December features cooler temperatures with a minimum of -8°C (18°F) and an average of 8°C (46°F), while April sees a milder minimum of -1°C (30°F) and a significantly higher average temperature of 16°C (60°F). The maximum temperature in December can reach up to 23°C (73°F), whereas in April it can rise to 30°C (87°F), making April distinctly warmer overall. Both months experience around 10 days of precipitation, with December receiving 139 mm (5.5 in) and April slightly more at 156 mm (6.2 in). Additionally, humidity remains high in both months, with December averaging 88% and April at 82%. For a closer look at the specific weather patterns in April, you can check out Lookout Mountain weather in April.

December and May present stark contrasts in weather. December exhibits a wide temperature range with minimums dropping to -8°C (18°F) and maximums reaching 23°C (73°F), making for chilly days and nights. The month sees considerable precipitation of 139 mm (5.5 in) over about 10 days, combined with a high humidity level of 88%. In contrast, May offers a much warmer climate, where temperatures typically range from a minimum of 4°C (39°F) to a comfortable average of 21°C (70°F), peaking at 34°C (93°F). Although May has fewer total rainfall amounts at 96 mm (3.8 in) across the same number of wet days, the humidity is slightly lower at 83%. For more detailed insights, you can explore Lookout Mountain weather in May.

December and June present strikingly different weather conditions. In December, temperatures range from a chilly -8°C (18°F) as a minimum to a mild high of 23°C (73°F), with an average of 8°C (46°F). The month sees significant precipitation of 139 mm (5.5 in) over about 10 days, along with high humidity at 88%. In contrast, June enjoys warmer temperatures, with a minimum of 11°C (51°F) and a maximum of 34°C (94°F), averaging 24°C (76°F). Although June experiences slightly less precipitation at 120 mm (4.7 in) over 13 days, the humidity is moderately lower at 82%. For a detailed look at June weather patterns, check out Lookout Mountain weather in June.

December and July exhibit stark contrasts in weather conditions. In December, temperatures range from a chilly minimum of -8°C (18°F) to a mild maximum of 23°C (73°F), with an average temperature of 8°C (46°F). This month also experiences significant precipitation, totaling 139 mm (5.5 in) over approximately 10 days, coupled with high humidity at 88%. Conversely, July brings warmth, with temperatures starting at a minimum of 16°C (61°F) and peaking at a scorching 37°C (98°F), averaging 26°C (80°F). Although July sees slightly less precipitation at 106 mm (4.2 in) spread over 14 days, the humidity is lower at 78%. For more information on July conditions, check Lookout Mountain weather in July.

December and August present stark contrasts in weather conditions. In December, temperatures range from a chilly minimum of -8°C (18°F) to a mild maximum of 23°C (73°F), with an average of 8°C (46°F). The month experiences significant precipitation, totaling 139 mm (5.5 in) over approximately 10 days, accompanied by high humidity at 88%. In contrast, August boasts a much warmer climate, with minimum temperatures starting at 15°C (60°F) and soaring up to a maximum of 35°C (96°F), averaging 26°C (78°F). While August sees slightly less precipitation at 121 mm (4.8 in) over 14 days, humidity is notably lower at 67%. The differences highlight the transition from the cold, wet days of winter to the warm, humid conditions of summer. For more details on the weather in August, visit Lookout Mountain weather in August.

In comparing the weather between December and September, we observe stark contrasts. December experiences much colder temperatures, with a minimum of -8°C (18°F) and an average of 8°C (46°F), while September boasts warmer conditions, with minimums around 9°C (48°F) and an average of 24°C (75°F). Additionally, September can reach a maximum of 37°C (98°F), significantly higher than December's maximum of 23°C (73°F). Precipitation levels are somewhat comparable, with December recording 139 mm (5.5 in) over 10 days and September showing 106 mm (4.2 in) across 8 days. Moreover, humidity in December is notably higher at 88%, compared to 64% in September. For more specifics on September weather, you can refer to Lookout Mountain weather in September.

When comparing December and October weather, December tends to be significantly cooler, with temperatures ranging from a minimum of -8°C (18°F) to a maximum of 23°C (73°F), averaging around 8°C (46°F). In contrast, October experiences milder conditions, with temperatures varying from a minimum of -2°C (29°F) to a maximum of 37°C (99°F) and an average of 18°C (65°F). Both months have a similar amount of precipitation, with December receiving 139 mm (5.5 in) and October slightly less at 133 mm (5.2 in), occurring over approximately the same number of days. Furthermore, December's humidity is noticeably higher at 88%, compared to October's 74%, contributing to the chillier feel of late autumn and winter. For a closer look at the specifics, you can check Lookout Mountain weather in October.

In comparing the weather of November and December, December tends to be cooler with a minimum temperature dropping to -8°C (18°F) compared to November's low of -6°C (21°F). The average temperatures also shift slightly, with December averaging 8°C (46°F) versus November's 10°C (50°F). While December experiences more precipitation at 139 mm (5.5 in) over 10 days, November has significantly less, with 72 mm (2.8 in) over 8 days. Humidity levels remain similar, with December at 88% and November at 87%. For more details about weather conditions in November, you can check this link: Lookout Mountain weather in November.

Compare Lookout Mountain's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Lookout Mountain

As December arrives on Lookout Mountain, the weather transforms into a notable contrast from the milder months preceding it. The temperature drops, introducing chilly days with the potential for frost, while the high humidity, reaching 88%, often amplifies the cold sensation. December also sees increased precipitation, contributing to the month’s distinct character, with rain or sleet arriving on about ten days. For those planning to visit during this festive month, be prepared for a blend of winter chill and picturesque landscapes, making it a unique time to experience the mountain's beauty. For more insights on seasonal changes, visit Lookout Mountain Climate.