December Weather in Glenwood Springs, United States

Last updated: February 24, 2025

December in Glenwood Springs, United States, presents a chilly yet picturesque winter landscape. With average temperatures hovering around -6°C (21°F), residents and visitors can expect a maximum of 12°C (54°F) on milder days but should be prepared for bone-chilling lows plunging to a minimum of -28°C (-19°F). The month sees 66 mm (2.6 in) of precipitation over approximately 11 days, resulting in a humid atmosphere with humidity levels at a brisk 89%. This combination of cold temperatures and moisture creates a serene, frosty environment perfect for winter activities and cozy gatherings.

December Temperature in Glenwood Springs

In Glenwood Springs during December, temperatures begin to dip dramatically, marking the heart of winter with a striking minimum of -28°C (-19°F) and an average of -6°C (21°F). The chill is palpable, setting the stage for outdoor winter activities, while the maximum reaches a moderate 12°C (54°F), offering brief respites from the cold. This month continues the trend of colder temperatures seen from November, which recorded even lower extremes. As the year winds down, December showcases a transition into the colder months, making the town a picturesque winter wonderland while reminding visitors to bundle up and enjoy the serene beauty of the Rockies under a blanket of snow.

December Weather in Glenwood Springs: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Glenwood Springs, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec212432374761676558413021
Data source: Temperature data for Glenwood Springs 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 Glenwood Springs

In December, Glenwood Springs experiences a notable increase in precipitation, with 66 mm (2.6 in) recorded across an average of 11 days. This rise marks a shift from the relatively drier summer months, particularly July and August, which see only 16 mm (0.6 in) each. As winter approaches, it's not uncommon for the region to receive consistent moisture, preparing it for the snowy conditions that characterize January and February. The precipitation levels in December align closely with the overall trend observed in late fall, where cooler temperatures contribute to a higher likelihood of precipitation, setting the stage for the winter season ahead.

December Precipitation Trends in Glenwood Springs

The chart displays monthly precipitation patterns in Glenwood Springs, 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.
JanFebMarAprMayJunJulAugSepOctNovDec628569535223161619675266
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Glenwood Springs

In Glenwood Springs, December ushers in a notable increase in humidity, rising to an impressive 89%. This surge reflects a trend of generally higher moisture levels during the winter months, with January following closely behind at 88% and November at 82%. As the year progresses from summer into autumn, humidity levels gradually decline, peaking during the warmer months of July and August at 52% and 56%, respectively. However, as temperatures drop in late fall and winter sets in, the moisture in the air reclaims prominence, illustrating the region's dynamic seasonal climate.

December Average Humidity in Glenwood Springs

This chart illustrates the average monthly humidity levels in Glenwood Springs, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%76%67%58%52%56%65%76%82%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Glenwood Springs

In December, Glenwood Springs experiences a UV Index of 4, placing it in the moderate exposure category with a burn time of 30 minutes. This marks a transition from the extreme levels typically seen in the summer months, such as June's peak UV Index of 13. As winter settles in, the UV Index steadily declines from November's 5, reflecting the lower sun angle and shorter daylight hours. This trend indicates that while sunlight can still be harmful, residents and visitors should take it easy on sun exposure compared to the intense rays of mid-summer. Staying informed about daily UV levels remains essential for outdoor activities. For more information, check the detailed data on the Glenwood Springs UV Index.

Maximum UV Index Levels in Glenwood Springs for December

The chart shows the monthly maximum UV Index (UVI) for Glenwood Springs 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.
JanFebMarAprMayJunJulAugSepOctNovDec469121213121210754
Data source: Glenwood Springs 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 Glenwood Springs

In December, Glenwood Springs embraces the twilight of the year with 213 hours of sunshine, a time when the crisp winter air dances with the last warmth of autumn. As daylight diminishes into winter, sunshine hours show a gradual decline from the year's peak in late spring and early summer, when the town basked in an impressive 384 to 386 hours of sunlight in June and July. Despite the shorter days, December's sunshine remains a comforting reminder of brighter months, especially when compared to the 163 hours seen in January. This trend illustrates the ebb and flow of daylight through the seasons, inviting residents and visitors alike to revel in the serene beauty of snowy landscapes under the gentle winter sun.

Monthly Sunshine Duration in Glenwood Springs: December Highlighted

The December sunshine duration represents the total number of hours Glenwood Springs 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.
JanFebMarAprMayJunJulAugSepOctNovDec163h214h279h313h361h384h386h359h317h276h236h213h
Data source: Glenwood Springs December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Glenwood Springs During December

In December, Glenwood Springs experiences a 49% chance of sunny weather, a figure that reflects a steady progression from the sunnier months of August and September, which boast a striking 71% chance. As the year winds down, the likelihood of sun plays a crucial role in winter activities and holiday plans. Interestingly, the chance of sunshine in December is on par with the earlier months of March and October, suggesting a balanced transition into winter. With increasing cloud cover typical of the season, those visiting can still anticipate moments of clear, bright skies amid the cooler temperatures. While not as sunny as mid-summer, December in Glenwood Springs holds its own, offering a pleasant blend of winter charm and occasional sunshine.

Percentage of Sunny Days in December in Glenwood Springs

The chart illustrates the percentage of sunny days in Glenwood Springs 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 Glenwood Springs experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%38%49%55%48%64%58%71%71%52%56%49%
Data source: Glenwood Springs December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Glenwood Springs in December

As winter descends upon Glenwood Springs, December brings a return to shorter days with only 9 hours of daylight. This marks a continuation of the gradual decline that began in November, emphasizing the region's transition into the coldest months of the year. After enjoying as much as 14 hours of daylight during the peak of summer, the days grow noticeably shorter as we move towards the winter solstice. However, this trend is part of a natural rhythm; daylight will begin to slowly increase again starting in January. Despite the shorter days, the crisp air and beautiful winter scenery invite residents and visitors alike to revel in the enchanting charm that Glenwood Springs has to offer during this serene season.

Average Daylight Hours in Glenwood Springs for December

The chart illustrates the variation in daylight duration in Glenwood Springs throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 44m10h 43m11h 58m13h 16m14h 21m14h 53m14h 35m13h 37m12h 23m11h 6m9h 59m9h 25m
Data source: Glenwood Springs daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Glenwood Springs

As December settles into Glenwood Springs, the wind takes on a gentle yet invigorating presence, with an average speed of 1.7 m/s (4 mph). This slight uptick from the preceding months, where winds hovered around 1.5 m/s (3 mph), signifies the subtle transitions of winter. Throughout the year, wind speeds in this charming location follow a calming trend, fluctuating just above or below the 4 mph mark, particularly in the spring and summer months, which are characterized by slightly breezier days. The consistency of wind patterns creates a unique atmosphere, enhancing the serene beauty of December as it ushers in colder days. Embracing these mild winter winds captures the essence of Glenwood Springs, blending tranquility with natural wonder.

Average December Wind Speed in Glenwood Springs

The chart displays monthly wind speed patterns in Glenwood Springs, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.81.71.91.81.71.51.71.61.51.51.7 m/s
Data source: Glenwood Springs December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Glenwood Springs Compares to Other Months

The weather in Glenwood Springs 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 Glenwood Springs and find detailed weather information for every month.

December and January share similar average temperatures, hovering around -6°C (21°F), but January tends to be slightly colder, with a maximum of 9°C (48°F) compared to December's 12°C (54°F). Both months experience comparable precipitation levels, with December receiving 66 mm (2.6 in) and January slightly less at 62 mm (2.5 in), across the same number of rainy days—11. Humidity levels remain quite high in both months, at 89% for December and 88% for January, contributing to the overall cold, damp conditions. For more detailed insights on January weather, you can visit Glenwood Springs weather in January.

In December, the weather is generally colder, with average temperatures hovering around -6°C (21°F) and nighttime lows reaching as low as -28°C (-19°F). This month experiences about 66 mm (2.6 in) of precipitation over 11 days, accompanied by relatively high humidity levels at 89%. In contrast, February brings slightly milder conditions, with average temperatures at -4°C (24°F) and minimums dipping to around -23°C (-9°F). Precipitation increases to 85 mm (3.3 in), spread over 14 days, and the humidity remains somewhat consistent at 87%. For more detailed insights into February weather, you can check this link: Glenwood Springs weather in February.

December and March exhibit notable differences in weather patterns, though both months remain quite chilly. In December, temperatures can plunge as low as -28°C (-19°F), with an average of -6°C (21°F) and a maximum of 12°C (54°F). The month sees approximately 66 mm (2.6 in) of precipitation over 11 days, contributing to a high humidity of 89%.

In contrast, March offers a slight reprieve from the harshness of winter, with temperatures ranging from a minimum of -18°C (-1°F) to an average of 0°C (33°F) and a maximum of 14°C (58°F). Precipitation increases marginally to 69 mm (2.7 in) and occurs on 14 days, while humidity drops to 81%. For a more detailed look at the weather in Glenwood Springs during March, check out Glenwood Springs weather in March.

December and April showcase a stark contrast in weather patterns. In December, temperatures can plunge as low as -28°C (-19°F), with an average of -6°C (21°F) and occasional highs reaching 12°C (54°F). The month experiences substantial precipitation of 66 mm (2.6 in) across 11 days, combined with high humidity levels at 89%. In contrast, April brings a milder climate, featuring a minimum temperature of -15°C (5°F) and an average temperature of 3°C (37°F), while highs can reach up to 18°C (65°F). Precipitation decreases to 53 mm (2.1 in) over 10 days, and the humidity drops to a more comfortable 76%. For a closer look at the weather specifics during this spring month, check out Glenwood Springs weather in April.

December and May present stark contrasts in weather conditions. In December, temperatures can plunge as low as -28°C (-19°F), with an average of -6°C (21°F) and a maximum of 12°C (54°F). With high humidity at 89% and about 66 mm (2.6 in) of precipitation over 11 days, the month often feels quite frigid and damp. In contrast, May showcases a more moderate climate, featuring a minimum temperature of -10°C (15°F) and an average of 8°C (47°F), reaching up to 26°C (79°F) at its peak. With lower humidity at 66% and less precipitation, totaling 52 mm (2.1 in) over 9 days, May offers a much milder atmosphere. For more details on the delightful weather expected in May, you can check out Glenwood Springs weather in May.

December and June present stark contrasts in weather. In December, temperatures plummet, with minimums reaching a frigid -28°C (-19°F) and an average temperature of -6°C (21°F), while highs can only reach up to 12°C (54°F). The month experiences considerable humidity at 89% and average precipitation of 66 mm (2.6 in) over 11 days. In contrast, June offers a much more temperate climate, with minimum temperatures around -5°C (24°F) and comfortable averages of 16°C (61°F), peaking at a warm 33°C (91°F). It sees significantly less rain, with only 23 mm (0.9 in) of precipitation over 5 days and lower humidity at 58%. For more information, check out Glenwood Springs weather in June.

In December, Glenwood Springs experiences cold weather with temperatures ranging from a chilling -28°C (-19°F) to a relatively mild max of 12°C (54°F), while the average temperature hovers around -6°C (21°F). The month sees considerable precipitation, totaling 66 mm (2.6 in) over approximately 11 days, accompanied by high humidity levels at 89%. In stark contrast, July brings warmer conditions, with temperatures starting at a minimum of 4°C (39°F), soaring to an average of 20°C (68°F), and a maximum reaching 33°C (92°F). Precipitation is significantly lower in July, with only 16 mm (0.6 in) recorded over just 4 days, and humidity drops to a comfortable 52%. For more detailed information, check out Glenwood Springs weather in July.

The weather in December contrasts significantly with that of August in Glenwood Springs. December brings frigid temperatures, with a minimum of -28°C (-19°F) and an average around -6°C (21°F), while August enjoys much milder conditions, with temperatures ranging from a minimum of 5°C (41°F) to a comfortable maximum of 32°C (89°F). Additionally, December experiences more frequent precipitation, occurring on 11 days and totaling 66 mm (2.6 in), compared to August's drier climate with only 16 mm (0.6 in) over just 3 days. Humidity levels also differ, with December's humidity at a high 89% versus a more moderate 56% in August. For more details on August weather, you can visit Glenwood Springs weather in August.

December and September present strikingly contrasting weather patterns. In December, temperatures can plunge to a minimum of -28°C (-19°F) with an average temperature around -6°C (21°F), reaching a maximum of 12°C (54°F). The month is characterized by high humidity at 89% and significant precipitation, totaling 66 mm (2.6 in) over 11 days. In contrast, September boasts much milder conditions, with temperatures ranging from a minimum of -4°C (25°F) to a warm average of 15°C (58°F) and a maximum of 31°C (88°F). Precipitation is substantially lower at 19 mm (0.7 in), spread over just 4 days, and the humidity level is also more comfortable at 65%. For those interested in the specifics of September's climate, you can find more information here: Glenwood Springs weather in September.

In comparing the weather between December and October, we can observe some striking differences. December experiences much colder conditions, with an average temperature of -6°C (21°F), while October boasts a milder average of 5°C (41°F). The maximum temperatures in December peak at a cooler 12°C (54°F), compared to October's warm highs of 24°C (75°F). Additionally, both months have similar precipitation levels, with December receiving 66 mm (2.6 in) over 11 days and October slightly ahead at 67 mm (2.6 in) over 9 days. Humidity also differs significantly; December has a high of 89% compared to October's 76%. For a closer look at October weather specifics, you can check Glenwood Springs weather in October.

In comparing the weather of December and November, December tends to be slightly warmer on average, with an average temperature of -6°C (21°F) compared to November's -1°C (30°F). However, November experiences a lower minimum temperature, reaching as low as -29°C (-19°F), whereas December's minimum is -28°C (-19°F). Precipitation also sees an increase in December, with 66 mm (2.6 in) over 11 days, while November has 52 mm (2.0 in) over 8 days. Humidity levels are higher in December at 89%, compared to November’s 82%. For those interested in the specifics of November weather, more information can be found at Glenwood Springs weather in November.

Compare Glenwood Springs's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Glenwood Springs

As December arrives in Glenwood Springs, the weather showcases a significant shift compared to other months, embracing the essence of winter. The temperatures drop to a chilly average, with maximums barely reaching the mid-teens while minimums can plunge into the deep negatives. The increased humidity adds a crispness to the air, and with 66 mm of precipitation spread over 11 days, snow becomes a frequent visitor, blanketing the landscape in white. This blend of cold air and moisture creates a unique atmosphere that is distinct from the warmer and drier months. For a more detailed overview of weather patterns throughout the year, visit Glenwood Springs Climate.