Last updated: February 24, 2025
December in Rockland, United States, showcases a diverse range of temperatures, with a maximum of 14°C (57°F) and a chilling minimum plunging to -17°C (1°F). The month averages around 1°C (35°F), creating a striking contrast in the winter landscape. Rainfall is notable, with a total precipitation of 143 mm (5.6 in) spread over 11 days. This, combined with a high humidity level of 81%, results in a distinctly crisp atmosphere, allowing residents to embrace the enchantment of the snowy season while preparing for colder days ahead.
As December settles over Rockland, temperatures plunge, marking the start of winter's full embrace. With minimums dipping to a frigid -17°C (1°F), the onset of the season is unmistakably chilly. The average temperature rests around 1°C (35°F), providing a stark contrast to the milder months preceding it. Despite the cold, maximum temperatures can reach a more bearable 14°C (57°F), offering brief moments of warmth amidst the winter chill. This month highlights a significant drop from November, where milder days lingered with highs of 17°C (62°F), heralding a transition into the deeper cold of the season as daylight hours dwindle and the landscape transforms into a winter wonderland.
In December, Rockland experiences a significant precipitation level of 143 mm (5.6 in), making it one of the wettest months of the year. With 11 days of rain, this winter month showcases a trend of increased moisture, following the particularly rainy October and November, which recorded 147 mm and 128 mm, respectively. As temperatures drop, the consistent precipitation adds a wintry touch to the landscape, setting the stage for the cozy charm of the holiday season. Interestingly, December's rainfall is slightly lower than April's peak of 151 mm, yet maintains a steady rhythm that underscores the transition from fall to winter in this region.
In December, humidity in Rockland, United States, hovers around 81%, continuing a trend of relatively high moisture levels typical for the region. As the year progresses from the chill of winter into the milder embrace of spring, humidity levels fluctuate slightly, peaking at 86% in both February and June. The air remains consistently moist during the summer months, with July and August recording 85% and 83%, respectively. Interestingly, late fall brings a subtle dip, as November settles at 80%. Overall, while December's figure suggests a slight rise from autumn, it reflects Rockland's characteristic humidity, which frequently stays above 79% throughout the year, ensuring a damp, cool atmosphere as the year draws to a close.
December in Rockland, United States, sees a low UV Index of 2, providing a welcome respite from the higher exposure levels experienced in the summer months. With a burn time of 45 minutes, residents can enjoy outdoor activities with minimal risk of sunburn. This trend of lower UV levels continues from November's UV Index of 3, highlighting the shift towards winter when sun exposure decreases. As the year progresses, folks can expect a rise in UV levels during the warmer months, peaking in May and June with indices reaching 9 and 10 respectively, which demand greater sun protection. For more information on monthly UV trends and tips, check out Rockland UV Index.
UV Risk Categories
In Rockland, United States, December marks the onset of winter, yet it still enjoys a respectable 173 hours of sunshine. This month's sunlight is a continuation of a gradual decline from the lush brightness of summer, which peaks in August with 335 hours. As the year progresses, there's a noticeable trend: the hours of sunshine typically rise from the frigid 145 hours in January to a summer high before tapering off as colder months approach. Notably, December’s sunshine signifies a shift into the quieter part of the year, reminding residents of the warm days spent under the sun while also hinting at the festive glow of the holiday season amidst the cool, crisp air.
In Rockland, December brings a 33% chance of sunny weather, showing a slight dip compared to the preceding months. This decline follows a notable 55% likelihood of sunshine in November, suggesting that while the autumn days may be illuminated, the arrival of winter casts a shadow over the likelihood of bright skies. Overall, the winter months appear less favorable for sunshine, particularly when contrasted with the sunnier days of early spring, which boast a 57% chance in March. As the year winds down, residents can expect more cloud cover, making those rare sunny spells feel all the more special.
As December approaches in Rockland, daylight hours dip to a shortest span of just 8 hours, emphasizing the arrival of winter. This month marks a gradual decline that begins after the height of summer, when residents enjoy 15 hours of daylight in June and July. The transition is marked by a steady decrease in light as autumn sets in, with daylight dwindling to 10 hours in October and 9 hours in November. The trend of diminishing daylight serves as a reminder of the seasonal changes, transitioning from the vibrant sunlit days of summer through the crisp, shorter days of winter. Each month illustrates the ebb and flow of daylight, culminating in December's quiet embrace of the winter solstice.
As the year draws to a close, December in Rockland ushers in a vibrant return of brisk winds, with an average speed of 7.3 m/s (16 mph), matching January's gusty start. This revival caps off a month-to-month trend where winds gradually softened through the summer, reaching a low in July at 4.6 m/s (10 mph), before picking up momentum again. Notably, November saw a slight increase to 6.8 m/s (15 mph), setting the stage for December's refreshing breeze. The winter winds not only serve as a reminder of the changing seasons but also invigorate the community with their lively presence, perfectly capturing the essence of Rockland's coastal climate.
The weather in Rockland 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 Rockland and find detailed weather information for every month.
In December, temperatures in Rockland typically range from a chilly minimum of -17°C (1°F) to a mild maximum of 14°C (57°F), with an average temperature of 1°C (35°F). The month sees significant precipitation, totaling 143 mm (5.6 in) over 11 days, and humidity levels linger around 81%. In contrast, January experiences slightly colder conditions, with an average temperature of -1°C (31°F) and maximums of 11°C (51°F), while minimum temperatures remain the same at -17°C (1°F). Precipitation decreases to 106 mm (4.2 in) over 9 days, and humidity rises slightly to 85%. For more detailed insights into January's weather, you can visit Rockland weather in January.
December and February exhibit notable differences in weather patterns, although both months experience the chill of winter. In December, temperatures range from a minimum of -17°C (1°F) to a maximum of 14°C (57°F), with an average of 1°C (35°F). This month sees a higher total precipitation of 143 mm (5.6 in) over approximately 11 days, accompanied by a humidity level of 81%. In contrast, February tends to be slightly colder, with temperatures spanning from -14°C (7°F) to 10°C (50°F) and an average of -1°C (31°F). Precipitation also decreases to 108 mm (4.3 in) over 10 days, while humidity rises to 86%. For more detailed information, you can check out Rockland weather in February.
In December, temperatures tend to be colder with a minimum of -17°C (1°F) and an average of 1°C (35°F), while March sees slightly milder conditions with a minimum of -13°C (8°F) and an average of 1°C (34°F). December is also marked by higher precipitation at 143 mm (5.6 in) over 11 days, compared to March's 86 mm (3.4 in) across 10 days. Humidity levels remain relatively high in both months, with December at 81% and March slightly higher at 84%. For more specific details on March weather, you can check Rockland weather in March.
December and April show distinct weather characteristics, reflecting the transition from winter to spring. In December, temperatures can plunge to a minimum of -17°C (1°F) with an average around 1°C (35°F), while April sees a milder minimum of -3°C (28°F) and a slightly higher average of 5°C (42°F). Both months experience similar maximum temperatures, peaking at 14°C (57°F) in December and 14°C (58°F) in April. Precipitation levels are quite close as well, with December receiving 143 mm (5.6 in) over 11 days and April accumulating 151 mm (5.9 in) over 14 days. Humidity is relatively high in both months, registering at 81% in December and slightly lower at 79% in April. For more detailed insights about April weather, you can visit Rockland weather in April.
December and May present stark contrasts in weather conditions. In December, temperatures can drop as low as -17°C (1°F), with an average hovering around 1°C (35°F) and reaching a maximum of 14°C (57°F). The month also sees considerable precipitation, totaling 143 mm (5.6 in) over 11 days, accompanied by high humidity levels of 81%. In contrast, May brings a much milder climate, with low temperatures starting at 3°C (37°F) and an average of 9°C (49°F), peaking at a comfortable 20°C (68°F). Precipitation decreases to 97 mm (3.8 in) across 10 days, while humidity remains relatively low at 79%. For a more detailed look at weather trends, you can check Rockland weather in May.
December and June present strikingly different weather patterns. In December, temperatures can plunge as low as -17°C (1°F) with an average of around 1°C (35°F), making it the colder month, while June enjoys much milder conditions with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 22°C (72°F). Precipitation is more frequent in December, with 143 mm (5.6 in) of rain spread over 11 days, compared to June's 82 mm (3.2 in) over just 8 days. Humidity also varies slightly between the two months, standing at 81% in December and increasing to 86% in June. For a deeper look into June's pleasant conditions, you can check out Rockland weather in June.
December and July present strikingly different weather patterns. In December, temperatures can plunge to a chilling -17°C (1°F), with an average of 1°C (35°F) and highs reaching only 14°C (57°F). The month is characterized by considerable precipitation, totaling 143 mm (5.6 in) over about 11 days, along with high humidity at 81%. In stark contrast, July offers much milder conditions, with a minimum temperature of 12°C (54°F), an average of 17°C (62°F), and a maximum of 23°C (74°F). While July also sees some rain, it is less significant, with 98 mm (3.9 in) over approximately 10 days, and slightly higher humidity at 85%. For a more detailed overview, you can visit Rockland weather in July.
In December, temperatures can plummet, with minimums reaching as low as -17°C (1°F) and averages around 1°C (35°F), while August enjoys much milder conditions with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 23°C (74°F). Precipitation is more prevalent in December, totaling 143 mm (5.6 in) over 11 days, compared to August, which sees 84 mm (3.3 in) across 8 days. Interestingly, despite December's colder temperatures, the humidity levels remain fairly similar, with December at 81% and August at 83%. For more detailed insights into the August weather, check out Rockland weather in August.
In comparing the weather between December and September, the two months exhibit notable differences in temperature and precipitation. December typically experiences a wider temperature range, with minimums plummeting to -17°C (1°F) and a chilly average of around 1°C (35°F), contrasted with September’s milder conditions that see minimums of 10°C (50°F) and averages of 16°C (61°F). Precipitation is more prominent in December, totaling 143 mm (5.6 in) over 11 days, compared to September's 97 mm (3.8 in) over 8 days. Additionally, while both months share similar humidity levels, December's increased precipitation and colder temperatures create a starkly different climate experience. For more insights into September weather, refer to Rockland weather in September.
In comparing the weather of December and October, December is significantly colder, with average temperatures hovering around 1°C (35°F), whereas October has a milder average of 12°C (54°F). The minimum temperatures can plunge to a frigid -17°C (1°F) in December, in stark contrast to October’s comparatively mild minimum of 2°C (35°F). Precipitation levels are relatively similar, with December seeing 143 mm (5.6 in) over 11 days and October recording 147 mm (5.8 in) across 12 days. Humidity is slightly higher in December at 81%, compared to October's 77%. For more insights into October's climate, you can check Rockland weather in October.
Comparing the weather in December and November reveals noticeable differences. December experiences colder temperatures, with a minimum of -17°C (1°F) and an average of 1°C (35°F), while November's temperatures are milder, ranging from a minimum of -11°C (12°F) to an average of 6°C (44°F). Precipitation levels are slightly higher in December, totaling 143 mm (5.6 in) compared to November's 128 mm (5.0 in), despite both months having rain on 11 days. Humidity remains fairly consistent, with December at 81% and November at 80%. For more detailed information, check out Rockland weather in November.
As December settles in, Rockland experiences a noteworthy shift in weather that sets it apart from the milder months. The sharp drop in average temperatures heralds the arrival of winter, with chilly days often punctuated by brisk winds. Coupled with the increased humidity and substantial precipitation, it’s clear that this month invites a different kind of atmosphere—perfect for cozy indoor activities and festive gatherings. While the ground may be blanketed with snow, nature's beauty remains captivating. To better understand how December compares to other months throughout the year, check out the detailed insights at Rockland Climate.