Last updated: February 24, 2025
November in Boulder, United States, presents a striking contrast in weather, with temperatures ranging from a brisk -16°C (3°F) to a pleasant 22°C (71°F). The average temperature hovers around 2°C (36°F), providing a chilly backdrop as the month unfolds. Rainfall is relatively modest, totaling 30 mm (1.2 in) over 6 days, contributing to a humidity level that reaches 82%. As autumn transitions toward winter, this month captures the essence of Colorado's varying climate, inviting both locals and visitors to experience its captivating seasonal shifts.
As November rolls into Boulder, US, the temperatures begin to exhibit a significant shift toward the cold as winter approaches. Minimum temperatures dip to around -16°C (3°F), while the average hovers at a brisk 2°C (36°F). This marks a noticeable decline from the milder conditions of October, highlighting the transition from fall to winter. However, the maximum daily highs can still reach a comfortable 22°C (71°F), offering a pleasant contrast to the chill. Overall, November serves as a bridge between the lingering warmth of autumn and the onset of colder months, making it a dynamic time for outdoor activities amidst the vibrant changes in nature.
November in Boulder sees a moderate precipitation level of 30 mm (1.2 in), marking a notable shift as the region transitions into winter. With 6 days of rain, this month features less frequent storms compared to the wetter spring months, where precipitation peaks at 134 mm (5.3 in) in May. As temperatures cool, November's precipitation is part of a gradual decline through the fall, following the previous month's 48 mm (1.9 in) in October. This trend reflects Boulder’s drier conditions leading into winter, with December typically bringing just 19 mm (0.8 in) of moisture. Overall, November serves as a gentle precursor to winter, offering a balance of wet days while signaling the dry months ahead.
As November settles in Boulder, the air begins to crisp, and humidity levels rise to an average of 82%. This increase follows the drier summer months, where values dipped to a low of 52% in July. The transition into late fall showcases a notable uptick from October's 76%, hinting at the approaching winter conditions. This fluctuation reflects a broader trend: as the year progresses, humidity levels steadily increase from the relative low of 58% in June, peaking again as colder months set in. With December reaching 89%, it's clear that Boulder experiences a seasonal cycle that shapes its climate, creating a dynamic and refreshing atmosphere as November unfolds.
As November arrives in Boulder, the UV Index dips to a moderate level of 5, marking a shift from the heightened exposure of the previous summer months. With a burn time of 30 minutes, residents and visitors can enjoy outdoor activities with a bit more sun safety, although it's still wise to remain cautious. This manageable index follows the high levels seen in October, where the UV Index reached 7, and is notably lower than the extreme conditions observed in the peak summer months. The trend throughout the year highlights a significant fluctuation in UV exposure, with January's index at 4, suggesting that the fall and winter months offer a respite from the most intense UV radiation. For more detailed insights on seasonal variations, check out the Boulder UV Index.
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November shines with a delightful 249 hours of sunshine in Boulder, a subtle transition from the vibrant light of summer months that peak in June and July with 374 and 378 hours, respectively. As the year progresses, the hours lead to a gradual decline, reflecting the cozy embrace of autumn. Despite the shorter days, November’s sunshine still outshines the chill of December and January, maintaining a warm connection to the bounteous days of spring and summer. This month is a reminder that while daylight diminishes, the crisp air and golden leaves create an inviting backdrop for outdoor activities against the warmth of the November sun.
November in Boulder brings a promising chance of sunny weather, with a 62% likelihood of clear skies. As the year progresses, this month stands out, showing a notable resilience against the seasonal decline in sunshine. Unlike the more vibrant summer months of July (59%) and August (65%), November maintains a consistent brightness, only slightly dipping from the autumn peak experienced in October (63%). This steadiness in sunshine reflects a trend towards moderate, yet enjoyable, weather as winter approaches, making November an appealing time for outdoor activities amidst the scenic backdrop of the foothills.
As November arrives in Boulder, the days begin to shorten significantly, offering just 9 hours of daylight. This marks a noticeable decline from the sun-drenched months of summer, where residents basked in 14 hours of sunshine during June and July. Following the subtle decrease through late summer and early autumn, November continues the trend, echoing the daylight patterns observed in January and December, which also feature 9 hours of light. The year's progression reveals a cyclical dance of light and shadow, with November serving as a stark reminder of winter's impending embrace, urging residents to savor the fleeting daylight while it lasts.
As November sweeps into Boulder, the wind begins to pick up, with an average speed of 2.9 m/s (6 mph), a notable increase compared to the preceding months. This gentle yet brisk breeze signals the transition into winter, as it gradually approaches the peak winter wind speed recorded in December at 3.0 m/s (7 mph). Interestingly, while most months see relatively low wind speeds, November stands out, hinting at an imminent change in the weather. The steady rise in wind speed from 2.4 m/s in October to nearly 3.0 m/s reflects the changing seasons and sets the stage for the chillier, windier days ahead. As the leaves fall and temperatures drop, Boulder prepares for a winter that promises both beauty and bite, wrapped in the crisp embrace of November's winds.
The weather in Boulder changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of November's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Boulder and find detailed weather information for every month.
November and January present distinct weather patterns, showcasing the transition from late autumn to deep winter. In November, temperatures range from a low of -16°C (3°F) to a mild high of 22°C (71°F), with an average of 2°C (36°F). The month experiences 30 mm (1.2 in) of precipitation over about six days, with a relative humidity of 82%. In contrast, January is typically colder, with minimum temperatures plunging to -24°C (-12°F) and a less comfortable average of -3°C (26°F). The maximum temperature reaches only 15°C (59°F), and precipitation is slightly lower at 25 mm (1.0 in) over five days, while humidity increases to 88%. For more detailed information, you can visit Boulder weather in January.
November and February display notable differences in weather patterns. November typically experiences milder temperatures, with average highs around 2°C (36°F) and lows of -16°C (3°F), while February is significantly colder, with average temperatures ranging from -26°C (-14°F) at night to a daytime high of 20°C (69°F). Additionally, February has slightly higher precipitation levels at 36 mm (1.4 in) over 9 days, compared to November's 30 mm (1.2 in) and 6 days of precipitation. Humidity levels also increase in February, averaging at 87% compared to November's 82%. For more detailed insights, check out Boulder weather in February.
November and March present intriguing contrasts in weather conditions, despite their similar average temperatures. In November, temperatures range from a minimum of -16°C (3°F) to a maximum of 22°C (71°F), with an average of 2°C (36°F) and relatively low precipitation of 30 mm (1.2 in) over six days, accompanied by high humidity at 82%. In contrast, March can be colder, starting with a minimum of -21°C (-5°F) and reaching a slightly higher maximum of 23°C (73°F), while maintaining a comparable average temperature of 2°C (35°F). However, March sees nearly double the precipitation at 62 mm (2.5 in) over 11 days, with humidity remaining slightly lower at 81%. For a deeper look at the weather patterns, you can explore Boulder weather in March.
November and April present quite contrasting weather patterns. In November, temperatures can range from a chilly minimum of -16°C (3°F) to a pleasant max of 22°C (71°F), with an average of around 2°C (36°F). The month experiences about 30 mm (1.2 in) of precipitation over approximately 6 days, coupled with a higher humidity level at 82%. In April, however, the temperatures are slightly warmer, with a minimum of -17°C (2°F) and a maximum reaching 24°C (75°F), resulting in an average of 5°C (42°F). This month is wetter, boasting 68 mm (2.7 in) of precipitation spread across 12 days, while the humidity remains relatively lower at 76%. For a more detailed look at what to expect, check out Boulder weather in April.
November and May showcase a distinct contrast in weather. November experiences a chilly range of temperatures, with minimums dropping to -16°C (3°F) and an average of just 2°C (36°F), while highs can reach up to 22°C (71°F). The month typically sees about 30 mm (1.2 in) of precipitation over approximately 6 days, accompanied by a high humidity level of 82%. In contrast, May is significantly warmer, with minimum temperatures around -9°C (17°F) and an average of 10°C (50°F), peaking at 27°C (81°F). However, it also brings more rainfall, accumulating 134 mm (5.3 in) across 16 days, and the humidity is lower at 66%. For a deeper look at what to expect, visit Boulder weather in May.
November and June exhibit strikingly different weather patterns. In November, temperatures can drop as low as -16°C (3°F), with an average of around 2°C (36°F) and a maximum of 22°C (71°F). The month sees about 30 mm (1.2 in) of precipitation over approximately 6 days, coupled with a high humidity level of 82%. In contrast, June brings much warmer conditions, with minimum temperatures around 3°C (37°F), an average of 17°C (63°F), and highs that can reach 34°C (93°F). This month experiences significantly more rainfall, totaling 74 mm (2.9 in) spread across about 14 days, while humidity drops to 58%. For a deeper look into Boulder’s weather in June, check out Boulder weather in June.
November and July present striking contrasts in weather conditions. In November, temperatures can dip as low as -16°C (3°F) at night, with an average of 2°C (36°F) and maximums reaching 22°C (71°F). The month is characterized by a higher humidity level of 82% and modest precipitation of 30 mm over about 6 days. In contrast, July boasts much milder temperatures, with minimums around 7°C (45°F) and average highs of 20°C (68°F), peaking at 34°C (93°F). July is also wetter, receiving 71 mm of rain over 16 days, but with lower humidity at 52%. For more detailed insights, check out Boulder weather in July.
The weather in November and August presents a stark contrast, both in temperature and precipitation patterns. November features colder temperatures, with a minimum of -16°C (3°F) and an average of 2°C (36°F), while August enjoys a much milder climate, with a minimum of 7°C (45°F) and an average of 19°C (67°F). Additionally, November experiences less precipitation, with 30 mm (1.2 in) over about 6 days, compared to August's 67 mm (2.7 in) across 13 days. Humidity levels also differ significantly; November is notably more humid at 82%, while August sees a lower humidity of 56%. For more information on August weather, you can check this link: Boulder weather in August.
In comparing November and September's weather, November presents a more varied temperature range, with a minimum of -16°C (3°F) and a maximum of 22°C (71°F), averaging around 2°C (36°F). In contrast, September enjoys milder conditions, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 33°C (92°F) and an average of 16°C (61°F). Moreover, November experiences lower precipitation at 30 mm (1.2 in) over 6 days, compared to September’s 42 mm (1.6 in) across 8 days. The humidity also rises significantly in November to 82%, whereas September maintains a more comfortable 65%. For more detailed insights, you can check Boulder weather in September.
November's weather exhibits a slightly milder temperature range compared to October, with minimums of -16°C (3°F) and maximums reaching 22°C (71°F), resulting in an average temperature of 2°C (36°F). In contrast, October experiences lower minimum temperatures at -20°C (-5°F) and higher maximums of 26°C (79°F), with an average of 7°C (45°F). Precipitation also sees a decline in November at 30 mm (1.2 in) over 6 days, compared to October’s 48 mm (1.9 in) across 7 days. Additionally, November’s humidity is slightly higher at 82%, while October maintains a lower level of 76%. For more detailed insights, check out Boulder weather in October.
In comparing November and December weather, December tends to be colder with average temperatures around -2°C (29°F), while November sees a milder average of 2°C (36°F). Both months experience relatively low precipitation, with November receiving 30 mm (1.2 in) over 6 days compared to December's 19 mm (0.8 in) over just 4 days. Additionally, December has slightly higher humidity levels at 89%, compared to 82% in November. For more detailed information, you can refer to Boulder weather in December.
As November rolls into Boulder, the weather showcases a dramatic shift compared to the milder autumn months. With temperatures plunging, the contrast between the daytime highs and nighttime lows is stark; the crisp air often dips into the negatives at night. While precipitation appears more frequently, resulting in an average of six rainy days, the overall climate remains relatively humid, creating an atmosphere that feels both brisk and refreshing. This blend of cool conditions and increasing moisture signals the tail end of fall and anticipates the arrival of winter. For a deeper dive into Boulder’s unique weather patterns, check out Boulder Climate.