Last updated: February 24, 2025
In December, Chelan, United States experiences a chilly climate characterized by a maximum temperature of 14°C (58°F) and a stark average of -2°C (29°F), dipping as low as a minimum of -19°C (-1°F). The month sees considerable precipitation, totaling 70 mm (2.8 in) over 12 days, contributing to a notable humidity level of 88%. This combination of cold temperatures and frequent moisture creates a unique winter atmosphere, ideal for snow-related activities and cozy indoor gatherings.
In December, Chelan, United States, experiences chilly winter temperatures that mark a significant drop from the milder conditions of earlier months. With minimums reaching as low as -19°C (-1°F) and an average temperature hovering around -2°C (29°F), the cold is palpable. Despite the bite of winter, daytime highs can still soar to 14°C (58°F), offering a brief respite from the frigid nights. This month stands out as the coldest of the year, contrasting sharply with the warmer summer months where temperatures regularly exceed 30°C (86°F). As the year draws to a close, the stark winter chill sets the stage for beautiful, frosty landscapes in Chelan, inviting residents and visitors alike to embrace the season.
In December, Chelan experiences a notable increase in precipitation, averaging 70 mm (2.8 in) over 12 days. This marks a slight decline from the more abundant rainfall of January but remains significantly higher than the drier summer months. December's precipitation is characterized by a steadier pattern compared to the previous month, where November already saw 57 mm (2.2 in) of rain, hinting at the onset of winter's grip. As the year draws to a close, the consistent precipitation lays a foundation for the landscape’s transformation, enriching the region’s natural beauty while signaling the arrival of colder, wetter weather ahead.
In December, humidity levels in Chelan, United States, settle at a notable 88%, reflecting a slight increase from the previous month's 89%. Throughout the year, humidity tends to follow a distinct pattern: it starts high during the winter months, peaking in January and February at 86%, before gradually declining to a low of 63% in the summer peak of August. As the seasons shift, humidity levels rise again in October and remain relatively high through November and December. This trend illustrates Chelan's characteristic seasonal climate, where moisture levels fluctuate dramatically, creating a cozy, humid atmosphere during the colder months that is well-suited for winter activities.
As December rolls in, Chelan witnesses a drop in UV levels, with the UV Index at 2, reflecting low exposure risk and an extended burn time of 45 minutes. This trend marks a significant shift from the intense summer months, where indices peaked at 10 in July, demanding a more vigilant approach to sun safety. The data reveals a clear seasonal pattern: from mild exposure in the winter months to very high levels from May to August, where even brief sun exposure can lead to burns in just 15 minutes. As the year comes to a close, residents and visitors can enjoy the crisp winter air with reduced concern for UV rays, but it's always wise to stay informed. For more insights, check out Chelan UV Index.
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In Chelan, United States, December marks a notable shift as daylight begins to wane, offering an average of just 100 hours of sunshine. This decrease follows a year filled with gradually increasing sun exposure, peaking in the summer months of June and July, which boast an impressive 376 and 416 hours, respectively. As the year draws to a close, the contrast is striking; December's sunshine hours dip significantly from the 350 hours of May, reflecting nature's rhythm as it prepares for winter. While shorter days prevail, the cool, crisp atmosphere of Chelan offers a unique charm during this month, inviting both reflection and a cozy embrace of the holiday season.
In Chelan, the likelihood of sunny weather reaches its pinnacle during the summer months, peaking at 87% in July, while December experiences a notable drop, with only a 22% chance of sunshine. This trend illustrates the seasonal variability of Chelan's climate: as daylight grows shorter and temperatures dip towards winter, the gloomy days of December mirror the sharp decline seen in November's 27% chance of sun. The gradual increase in sunny days from January through May reveals a consistent upward trend leading into the warmth of summer, making December an intriguing time for residents and visitors alike, who may find themselves longing for the return of those vibrant sunny days.
As December rolls into Chelan, the daylight durations begin their winter descent, offering just 8 hours of sunlight each day. This marks a notable decrease from the summer peak when residents enjoyed up to 15 hours of brightness in June through August. After the gradual decrease from 15 hours in May to 10 hours in October, November sees a slight dip to 9 hours before hitting the year's lowest point in December. The trend is clear: Chelan experiences a rhythmic cycle of daylight, with longer days dominating the summer months, while the winter solstice heralds an embrace of early nights and cozy indoor gatherings.
In Chelan, United States, the December wind gently whispers with an average speed of 1.6 m/s (approximately 4 mph), marking a subtle decrease as the year draws to a close. This month reflects a general trend of calmness that begins to emerge in late fall, consistent with the tapering winds seen from November (1.7 m/s) through to January (1.4 m/s). Throughout the spring and summer, wind speeds peak, with May reaching an average of 2.6 m/s (6 mph), but by the time winter sets in, the breezes soften, offering a serene atmosphere ideal for peaceful winter strolls. As Chelan steps into the new year, the evolving wind patterns hint at the tranquil beauty that defines its colder months.
The weather in Chelan 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 Chelan and find detailed weather information for every month.
In December, the weather experiences a broad range of temperatures with a minimum of -19°C (-1°F) and a maximum of 14°C (58°F), leading to an average of -2°C (29°F). The month sees approximately 70 mm (2.8 in) of precipitation over 12 days, and humidity remains quite high at 88%. Conversely, January's conditions are slightly milder, with minimum temperatures of -17°C (1°F), an average of -2°C (28°F), and a maximum of 7°C (45°F). Precipitation increases slightly to 76 mm (3.0 in) over 13 days, while humidity decreases modestly to 86%. For a more detailed look at January's weather patterns, check out Chelan weather in January.
In comparing the weather of December and February, both months exhibit similar average temperatures, hovering around -2°C (29°F). However, December tends to be colder at night with minimum temperatures dropping to -19°C (-1°F), while February's minimum is a slightly more moderate -14°C (6°F). Precipitation is relatively close in both months, with December receiving 70 mm (2.8 in) over 12 days and February experiencing 62 mm (2.4 in) over 11 days. Humidity levels also remain high, with December at 88% and February at 86%. For a more detailed look at February weather specifically, you can check out Chelan weather in February.
December and March showcase distinct differences in weather patterns. December features colder temperatures, with an average low of -19°C (-1°F) and a maximum of 14°C (58°F), making it significantly chillier than March, which sees a milder average low of -15°C (6°F) and a maximum of 18°C (64°F). Precipitation is more frequent in December, occurring on 12 days and totaling 70 mm (2.8 in), compared to March's 8 days and 41 mm (1.6 in). Additionally, both months have similar humidity levels, with December at 88% and March slightly lower at 87%. For those interested in specific weather details for March, you can find more information here: Chelan weather in March.
December weather is characterized by much colder temperatures, with minimums reaching as low as -19°C (-1°F) and an average around -2°C (29°F). The month sees an average maximum temperature of 14°C (58°F) and experiences higher humidity at 88%, with about 70 mm (2.8 in) of precipitation spread over 12 days. In contrast, April brings a noticeable warming trend, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 25°C (76°F) and an average temperature of 8°C (47°F). The month is drier, featuring only 36 mm (1.4 in) of precipitation over just 6 days, alongside slightly lower humidity at 84%. For more detailed information on April weather, you can check Chelan weather in April.
December and May present stark contrasts in weather. In December, temperatures can plunge to a minimum of -19°C (-1°F), with an average of -2°C (29°F) and a maximum of 14°C (58°F). The month sees about 70 mm (2.8 in) of precipitation over 12 days, contributing to a high humidity level of 88%. In contrast, May ushers in milder conditions, with temperatures ranging from a minimum of 0°C (32°F) to a pleasant average of 14°C (58°F) and a maximum reaching 31°C (87°F). Precipitation is notably lower at 22 mm (0.9 in) spread over just 5 days, and the humidity decreases slightly to 81%. For more detailed insights on the weather during this vibrant month, check out Chelan weather in May.
In December, the weather is notably colder, with temperatures ranging from a minimum of -19°C (-1°F) to a maximum of 14°C (58°F) and an average of -2°C (29°F). The month experiences significant precipitation, totaling 70 mm (2.8 in) over 12 days, and maintains a high humidity level of 88%. In contrast, June brings a much warmer climate, with temperatures ranging from 4°C (40°F) at minimum to an impressive maximum of 43°C (109°F), averaging around 18°C (65°F). The amount of rainfall drops significantly to 9 mm (0.4 in) over just 3 days, coupled with slightly lower humidity at 82%. This stark contrast highlights the drastic differences between the winter chill of December and the summer heat of June. For more detailed information about June weather in Chelan, you can refer to Chelan weather in June.
December and July present starkly contrasting weather conditions. In December, temperatures can plunge as low as -19°C (-1°F), with an average temperature hovering around -2°C (29°F), while July basks in warmth, boasting a minimum of 9°C (48°F) and a high of up to 40°C (105°F). Precipitation is more frequent in December, with about 70 mm (2.8 in) falling over 12 days, compared to the nearly dry July, which records only 2 mm (0.1 in) across zero days. Humidity also varies, sitting at a higher 88% in the chill of December, versus a comfortable 79% in the heat of July. For more specific information, you can check Chelan weather in July.
December and August present starkly contrasting weather conditions. In December, temperatures can plunge as low as -19°C (-1°F), with an average of -2°C (29°F) and maximums reaching 14°C (58°F). The month is characterized by high humidity levels of 88% and moderate precipitation, totaling 70 mm (2.8 in) over about 12 days. Conversely, August boasts a much milder climate, with minimum temperatures of 7°C (45°F), average highs of 22°C (71°F), and scorching peaks that can rise to 38°C (100°F). Rain is scarce during this month, with just 4 mm (0.2 in) of precipitation over 1 day and lower humidity at 63%. For more details on weather specifics during this time, check out Chelan weather in August.
In December, the weather is significantly colder, with temperatures ranging from a chilling minimum of -19°C (-1°F) to a maximum of 14°C (58°F), resulting in an average of -2°C (29°F). The month experiences higher precipitation levels of 70 mm (2.8 in) over 12 days, accompanied by a high humidity of 88%. In contrast, September boasts a much milder climate with temperatures varying from a minimum of 2°C (36°F) to a maximum of 35°C (96°F), averaging 16°C (61°F). The precipitation is considerably lower at 23 mm (0.9 in) over just 3 days, and humidity is less intense at 62%. For a closer look at what to expect during September in Chelan, check out Chelan weather in September.
In December, the weather is significantly colder, with temperatures ranging from a minimum of -19°C (-1°F) to a maximum of 14°C (58°F) and an average of -2°C (29°F). In contrast, October boasts much milder conditions, with temperatures fluctuating between -7°C (19°F) and 26°C (79°F), giving it an average of 8°C (47°F). Additionally, December experiences higher precipitation levels at 70 mm (2.8 in) over 12 days, compared to October's 48 mm (1.9 in) over just 6 days, although the humidity is slightly higher in December at 88% versus 83% in October. For more details on October weather, you can refer to Chelan weather in October.
In comparing the weather between November and December, December tends to be colder with average temperatures hovering around -2°C (29°F), while November enjoys milder averages at 3°C (37°F). The minimum temperatures drop more significantly in December, reaching as low as -19°C (-1°F), compared to November's minimum of -9°C (16°F). Precipitation levels are slightly higher in December at 70 mm (2.8 in) compared to November's 57 mm (2.2 in), although both months experience similar numbers of rainy days, with precipitation observed on 12 days each month. Humidity remains high in both months, with December at 88% and November at 89%. For a closer look at November weather, visit Chelan weather in November.
As December unfolds in Chelan, the weather takes a notable turn, transitioning from the milder conditions of earlier months to a chillier embrace. With average temperatures dipping significantly, residents can expect to experience crisp days and cold nights, casting a distinct contrast to the more temperate months of fall. This month also brings an increase in precipitation, with rain and possible snow accumulating, making it one of the wetter periods of the year. The high humidity adds to the bite in the air, creating a truly wintry atmosphere. For further insights on how Chelan's climate evolves throughout the year, explore Chelan Climate.