Last updated: February 24, 2025
December in Snoqualmie, United States, brings a chilly embrace as temperatures fluctuate from a maximum of 12°C (55°F) to a brisk minimum of -13°C (9°F), with an average hovering around 2°C (36°F). The month is characterized by considerable precipitation, totaling 284 mm (11.2 in) over approximately 20 days, creating a scene often draped in silvery blankets of snow. With humidity levels soaring at 88%, residents can expect a wintry landscape that captures the essence of the season, making for a picturesque yet cold month in this enchanting corner of Washington.
In Snoqualmie during December, temperatures begin to dip, with minimums averaging around -13°C (9°F) and highs reaching a comfortable 12°C (55°F). This chill heralds the onset of winter, aligning with the region's transition from the milder autumn months where average highs hovered around 17°C (62°F) in November. As the year closes, the average temperature stabilizes at 2°C (36°F) — a cozy reminder of the winter wonderland to come. Throughout the months leading to December, there’s a clear trend of decreasing temperatures, demonstrating how quickly Snoqualmie's climate shifts from the warmth of summer to the frosty embrace of winter.
In Snoqualmie, December marks a significant juncture in the precipitation calendar, contributing 284 mm (11.2 in) over 20 days of rainfall. This sets the month apart as the second wettest after February, where the total peaks at 296 mm (11.6 in). The trend indicates a steady decline in rainfall from the peak wet months of October and November, dropping slightly in December yet remaining robust. As the year wraps up, residents can expect this consistent moisture to provide a lush environment, making Snoqualmie's winter landscape both breathtaking and dramatic, while also preparing for the transition into the drier spring months. The persistence of rain in December underscores the region's rich aquatic ecosystem and vibrant greenery through the colder season.
In December, Snoqualmie's humidity stands at a notable 88%, reflecting the region's characteristic dampness as winter settles in. This figure represents a slight dip from November's 89%, yet it remains within the higher range of the year, maintaining a moist atmosphere that lingers since the onset of autumn. Observing the year’s trend, humidity shows a gradual decline from the late summer peak of 63% in August to more consistently elevated levels as the cooler months roll in. With January and February holding steady at 86%, it's clear that Snoqualmie's winter months consistently favor a humid climate, making it essential for residents to prepare for the chill that accompanies the moist air.
As December arrives in Snoqualmie, the UV Index drops to a low level of 2, equating to a burn time of 45 minutes for those exposed to sunlight. This significant decrease follows a summer marked by consistently high UV ratings of 9 in June, July, and August, where sun exposure was particularly risky with a mere 15 minutes needed for potential burns. The month-to-month trend reveals a gradual decline from a very high index in the spring and summer months to more moderate and low levels in the fall and winter. With the UV Index resting at a manageable low in December, outdoor enthusiasts can enjoy winter's beauty with less concern for sun damage, but vigilance is always recommended. Discover more insights about the UV Index in Snoqualmie throughout the year at Snoqualmie UV Index.
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In Snoqualmie, December experiences a gentle decline in sunshine, with approximately 81 hours of bright light illuminating the winter skies. This marks a notable decrease from the vibrant highs of summer, where July boasts an impressive 357 hours of sunshine, the peak of the year. As the seasons shift from the warmth of spring, which sees sunshine hours rise dramatically—159 hours in March to 287 hours in May—the gradual transition into winter becomes apparent. With every month leading up to December showcasing a steady decrease, it’s clear that the cold season brings a pause in sunlight, inviting residents to embrace the cozy indoors while reflecting on the abundance of light in the months prior.
In Snoqualmie, December brings with it a notably low likelihood of sunny weather, with only a 10% chance of clear skies. This trend of limited sunshine marks a significant drop from the sunnier months like July, which boasts a 62% chance. As the year draws to a close, the chances of experiencing pleasant weather continue to diminish, following the already overcast November, where the sun shines just 14% of the time. This pattern suggests that residents and visitors alike should brace themselves for a typical Pacific Northwest winter, characterized by cloud cover and frequent rain rather than bright, sunny days.
In Snoqualmie, December marks the return to shorter days, with only 8 hours of daylight—a stark contrast to the longer days experienced during the summer months. As the year progresses from January's 8 hours to June's peak of 15 hours, the gradual increase in daylight enhances the natural beauty of the surrounding landscapes. However, following the summer solstice, daylight hours gradually wane, culminating in the shortest days of the year in December. This rhythmic ebb and flow of sunlight not only influences daily life but also beautifully encapsulates the changing seasons in this picturesque part of the United States. As each month unfolds, the interplay between light and dark reveals the unique charm of Snoqualmie's winter, inviting residents and visitors alike to embrace the serene beauty of the season.
As the year winds down, December in Snoqualmie sees an average wind speed of 2.2 m/s (5 mph), reflecting a slight dip from the preceding month. This moderate breeze is part of a broader trend observed throughout the year, where wind speeds tend to be relatively low, peaking in late winter and early spring. Notably, November boasts the highest average wind speed at 2.8 m/s (6 mph), while the summer months generally experience calmer conditions with winds often hovering around 1.6 to 1.8 m/s (4 mph). As December ushers in colder temperatures, the gentle winds provide a refreshing contrast to the crisp air, inviting residents and visitors alike to enjoy the serene beauty of the season.
The weather in Snoqualmie 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 Snoqualmie and find detailed weather information for every month.
In December, the weather is characterized by a minimum temperature of -13°C (9°F), with an average of 2°C (36°F) and a maximum of 12°C (55°F). It sees significant precipitation, totaling 284 mm (11.2 in) over approximately 20 days, and humidity remains high at 88%. In contrast, January experiences slightly colder temperatures, with a minimum of -15°C (6°F) and a maximum of 11°C (51°F), while the average remains the same at 2°C (36°F). Precipitation decreases to 239 mm (9.4 in) over 17 days, and humidity levels are slightly lower at 86%. For more details on the weather in January, you can visit Snoqualmie weather in January.
The weather in December and February shares some similarities, yet also presents distinct characteristics. In December, temperatures range from a minimum of -13°C (9°F) to a maximum of 12°C (55°F), with an average of around 2°C (36°F). This month sees significant precipitation, measuring 284 mm (11.2 in) over approximately 20 days, accompanied by high humidity levels of 88%.
In comparison, February experiences slightly colder conditions, with temperatures ranging from -14°C (7°F) to a maximum of 13°C (56°F) and an average of 1°C (34°F). Precipitation during this month increases marginally to 296 mm (11.6 in) spread over 21 days, while humidity remains relatively high at 86%. Overall, both months are quite wet, but February tends to be a touch colder with slightly more precipitation. For more specifics on February weather, you can check Snoqualmie weather in February.
December and March exhibit notable differences in weather patterns. December typically experiences colder temperatures, with a minimum of -13°C (9°F) and an average of 2°C (36°F), while March sees milder conditions, with a minimum of -7°C (19°F) and an average of 4°C (39°F). Precipitation is more frequent in December, totaling 284 mm (11.2 in) over 20 days, compared to March's 181 mm (7.1 in) across 19 days. Despite this, both months maintain high humidity levels, with December at 88% and March slightly lower at 87%. For more detailed insights into March weather, check out Snoqualmie weather in March.
December weather is characterized by cold temperatures, with a minimum of -13°C (9°F) and an average of just 2°C (36°F), while the maximum reaches only 12°C (55°F). The month sees significant precipitation, totaling 284 mm (11.2 in) over about 20 days, and maintains high humidity at 88%. In contrast, April shows a notable shift towards milder conditions, with temperatures ranging from a minimum of -6°C (21°F) to an average of 7°C (45°F) and a maximum of 26°C (79°F). Although April experiences less precipitation at 170 mm (6.7 in) over 17 days, the humidity is slightly lower at 84%. For a more detailed look at the weather during this transition, visit Snoqualmie weather in April.
December and May present stark contrasts in weather conditions. In December, temperatures can dip as low as -13°C (9°F), with an average around 2°C (36°F) and a maximum of 12°C (55°F). The month is also characterized by significant precipitation, totaling 284 mm (11.2 in) over about 20 days and a high humidity level of 88%. In contrast, May features a much milder climate, with temperatures ranging from a minimum of 0°C (32°F) to a pleasant maximum of 27°C (81°F), averaging 11°C (52°F). Precipitation drops to 106 mm (4.2 in) over 15 days, and humidity decreases slightly to 81%. For those interested in the details of May weather, you can explore more here: Snoqualmie weather in May.
December and June present stark contrasts in weather patterns. December witnesses frigid temperatures, with a minimum of -13°C (9°F) and an average of 2°C (36°F), while June enjoys much warmer conditions, ranging from a minimum of 3°C (38°F) to a maximum of 39°C (103°F). Precipitation is more frequent in December, totaling 284 mm (11.2 in) over 20 days, compared to June's much lighter 98 mm (3.9 in) spread across 13 days. Additionally, humidity levels are slightly higher in December at 88%, as opposed to June's 82%. For a closer look at June weather specifics, visit Snoqualmie weather in June.
December and July present a stark contrast in weather conditions. In December, temperatures often plunge to a minimum of -13°C (9°F), with an average of around 2°C (36°F) and occasional highs reaching up to 12°C (55°F). This chilly month also sees considerable precipitation, totaling 284 mm (11.2 in) over approximately 20 days, accompanied by high humidity levels of 88%. In contrast, July boasts much milder conditions, with minimum temperatures around 6°C (43°F), an average of 16°C (62°F), and maximums peaking at 32°C (89°F). Rainfall is significantly lower in July, at only 38 mm (1.5 in) across just 8 days, and a slightly decreased humidity of 79%. For a closer look at July's weather patterns, you can visit Snoqualmie weather in July.
December and August present stark contrasts in weather conditions. In December, temperatures can drop as low as -13°C (9°F), with an average of 2°C (36°F) and a maximum of 12°C (55°F). The month is also characterized by significant precipitation of 284 mm (11.2 in) spread over 20 days and high humidity at 88%. In contrast, August enjoys milder temperatures, ranging from a minimum of 5°C (42°F) to an average of 17°C (62°F) and a maximum of 34°C (94°F). Precipitation is minimal at just 29 mm (1.1 in) over only 6 days, coupled with a more comfortable humidity level of 63%. For more details on the August weather, visit Snoqualmie weather in August.
December weather contrasts sharply with September's milder conditions. In December, temperatures can plummet to a minimum of -13°C (9°F), with an average of 2°C (36°F) and a maximum of 12°C (55°F), while September enjoys much warmer averages, ranging from a minimum of 3°C (37°F) to a maximum of 31°C (87°F). Additionally, December experiences significantly higher precipitation levels, totaling 284 mm (11.2 in) over 20 days, compared to September's 128 mm (5.1 in) across just 13 days. The humidity in December is also notably higher at 88%, in contrast to September's more comfortable 62%. For a deeper look into September’s weather patterns, visit Snoqualmie weather in September.
December weather is significantly colder than October, with minimum temperatures plunging to -13°C (9°F) compared to October's low of -6°C (22°F). The average temperature in December hovers around 2°C (36°F), while October enjoys a milder average of 8°C (46°F) and can even reach a maximum of 23°C (74°F). Precipitation is also more frequent in December, occurring on about 20 days with a total of 284 mm (11.2 in), compared to October's 250 mm (9.8 in) over 16 days. Additionally, December's humidity is slightly higher at 88%, making the cold feel even more penetrating than in October, which has a humidity level of 83%. For more details about October weather, check out Snoqualmie weather in October.
In comparing the weather of December to that of November, December experiences a more frigid climate, with average temperatures dipping to around 2°C (36°F) compared to November's milder average of 5°C (40°F). The minimum temperature in December plummets to -13°C (9°F), whereas November's minimum is only -5°C (23°F). Both months see similar precipitation levels, with December recording 284 mm and November 276 mm, but December consistently maintains a higher humidity at 88% compared to November's 89%. For a closer look at the conditions in November, you can view Snoqualmie weather in November.
As December rolls into Snoqualmie, the weather transforms dramatically compared to other months. Temperatures dip significantly, with chilly highs and lows that contrast sharply with the milder autumn. This month is marked by frequent precipitation, making it one of the wettest periods of the year, while the elevated humidity contributes to a blanket of moisture that envelops the region. The crisp winter air carries a sense of serene stillness, punctuated by the soft, rhythmic sound of falling rain—or snow in some cases—setting the stage for the festive season. To learn more about the overall climate patterns in this beautiful area, check out Snoqualmie Climate.