Last updated: February 24, 2025
In December, Julian, California experiences a refreshing winter climate characterized by a maximum temperature of 26°C (79°F) and an average of 10°C (51°F). The whirling chill brings a minimum temperature of -3°C (27°F), making warm clothing essential. With 47 mm (1.9 in) of precipitation over just 5 days, residents and visitors alike can expect occasional showers that contribute to the area's lush landscapes. The air is notably humid, averaging around 74%, enriching the crisp, invigorating feel of the season. This blend of temperatures and moisture offers a unique glimpse into Julian's picturesque December weather.
As December descends in Julian, United States, temperatures reflect the transition into the heart of winter. With minimums dropping to -3°C (27°F), residents brace for the chill, while the average temperature hovers around a brisk 10°C (51°F). Daytime highs see a modest peak of 26°C (79°F), offering a subtle contrast to the cold nights. This month marks a definitive shift from the warmer autumn months, with temperatures noticeably cooler compared to November, where the average was a more moderate 15°C (59°F). Overall, December stands as a reminder of winter’s arrival, with the landscape transforming into a serene, frosty wonderland.
In December, Julian experiences a notable increase in precipitation, with 47 mm (1.9 in) recorded over 5 days, making it one of the wetter months of the year. This uptick follows a trend of rising rainfall during the late fall, where November's 20 mm (0.8 in) foreshadows the shift to a more robust winter climate. The earlier summer months see minimal rainfall, often dipping below 20 mm, while December signifies a welcome return to moisture, adding vitality to the local landscape. As the year closes, residents can expect a refreshing transition from the dry spells of summer to the more saturated and lush conditions of winter, paving the way for new growth in the coming months.
As December arrives in Julian, United States, the humidity begins to climb once more, reaching a notable 74%. This increase follows a gradual decline through the summer months, where humidity dipped to its lowest point of 42% in August. After experiencing a slight rise in September and a sharper ascent in November, December's moisture levels signal the onset of winter. Comparatively, this month’s humidity is markedly higher than the year's summer lows, suggesting a shift towards the cooler, more humid conditions typical of the season. This cyclical pattern of fluctuating humidity reflects the transitional climate of Julian, where each month paints a distinct atmospheric picture.
As December rolls into Julian, United States, residents can expect a moderate UV Index of 4, indicating a burn time of approximately 30 minutes. This month reflects a notable decrease in UV exposure compared to the extreme levels observed from April through July, where the UV Index peaked at 12, necessitating a mere 10 minutes of unprotected sun exposure before risking sunburn. The transition from high readings in summer to milder ones in winter highlights a significant seasonal trend, emphasizing the importance of sun safety even in the colder months. For more detailed insights into UV levels and recommendations, visit Julian UV Index.
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In Julian, California, December offers a cozy retreat with 231 hours of sunshine, marking a gentle decline from the vibrant months of summer. As the year winds down, it reflects a broader trend of gradually diminishing sunlight, peaking in the sun-soaked days of July with 379 hours. The sunny days begin to shorten in late fall, with November providing 261 hours before the onset of winter. December's sunlight, though reduced, still brings a warm glow to the charming town, inviting residents and visitors alike to enjoy the serene beauty of its winter landscape. As the year transitions into the crisp embrace of January, which sees only 194 hours of sun, the rhythm of Julian's climate beautifully captures the changing seasons while still offering moments of brightness to cherish.
In December, the likelihood of sunny weather in Julian, United States, dips significantly to just 46%, making it one of the cloudier months of the year. This decline is notable compared to the sunnier spring and summer months, where chances soar above 81%. The trend shows a gradual increase in sunshine from January's 59% to May's 81%, before peaking in late summer with August's striking 84%. However, as the year winds down, November presents a more promising 74% before the December slump. Overall, those looking to soak up the sun should plan their visits for the vibrant spring and summer months when Julian shines its brightest.
As the seasons shift in Julian, United States, daylight duration experiences a fascinating ebb and flow. Starting the year at 10 hours in January, the days gradually lengthen, peaking at 14 hours during the summer months of June and July. The warmth of late spring and summer gifts Julian residents more time under the sun, fostering a vibrant atmosphere for outdoor activities. However, as autumn approaches, daylight begins to wane, receding to 12 hours in September before settling back down to 9 hours in December. This cyclical pattern not only defines the rhythm of the year but also influences the local culture and lifestyle, as residents adapt to the shorter days of winter by embracing cozy indoor gatherings and holiday festivities.
In December, the winds in Julian, United States, blow gently at an average speed of 2.0 m/s (5 mph), maintaining the seasonal trend established throughout the year. Interestingly, December's wind patterns reflect a slight increase compared to the quieter summer months, with July and August recording their calmest winds at 1.7 m/s (4 mph) and 1.9 m/s (4 mph), respectively. As autumn transitions into winter, the winds gradually pick up, culminating in speeds akin to those seen in January and February. This gentle breeze brings a refreshing touch to the crisp winter air, inviting residents and visitors alike to embrace the beauty of the season while enjoying outdoor activities in this charming mountain town.
The weather in Julian 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 Julian and find detailed weather information for every month.
In December, temperatures in the region range from a minimum of -3°C (27°F) to a maximum of 26°C (79°F), with an average of 10°C (51°F). The month experiences about 47 mm (1.9 in) of precipitation over five days and humidity levels reaching 74%. Conversely, January presents a slight decrease in maximum temperature, with values ranging from -3°C (27°F) to 25°C (78°F), while maintaining an average of 10°C (51°F). Precipitation also sees a minor reduction to 45 mm (1.8 in) over the same number of days, with humidity levels dropping slightly to 72%. For more insights on January weather, you can check Julian weather in January.
In comparing the weather between December and February, we see some intriguing similarities and slight differences. Both months experience a minimum temperature of -3°C (27°F) and an average of 10°C (51°F), with a maximum reaching 26°C (79°F). However, February sees slightly more precipitation at 53 mm (2.1 in) over 6 days, compared to December's 47 mm (1.9 in) over 5 days. Additionally, February's humidity is marginally higher at 77% compared to December's 74%. These subtle variations suggest that while the temperature remains consistent, February tends to be a bit wetter and more humid. For more detailed insights on February weather, check out the link: Julian weather in February.
December and March showcase distinct differences in weather patterns. In December, temperatures range from a chilly minimum of -3°C (27°F) to a pleasant maximum of 26°C (79°F), with an average of 10°C (51°F). The month sees a moderate amount of precipitation at 47 mm (1.9 in) over about 5 days, coupled with a higher humidity level of 74%. In contrast, March experiences slightly milder temperatures, with a minimum of -1°C (30°F) and a maximum of 29°C (84°F), averaging 12°C (53°F). Although March has a bit less precipitation at 37 mm (1.5 in) across 7 days, the humidity is lower at 67%. For more about the weather in March, check out Julian weather in March.
December weather is characterized by cooler temperatures, with minimums dipping to -3°C (27°F) and average highs around 10°C (51°F) to 26°C (79°F). It also features higher humidity at 74% and more precipitation, with an average of 47 mm (1.9 in) spread over about 5 days. In contrast, April brings a notable shift, with temperatures ranging from a minimum of 3°C (38°F) to an average of 16°C (60°F) and maximums reaching 34°C (93°F). The month sees significantly less precipitation, totaling only 17 mm (0.7 in) over about 2 days, and lower humidity at 56%. For more detailed information, you can check out Julian weather in April.
December and May present contrasting weather experiences. In December, temperatures can range from a chilly -3°C (27°F) to a pleasant 26°C (79°F), with an average of around 10°C (51°F). The month typically sees about 47 mm (1.9 in) of precipitation over 5 days, alongside relatively high humidity at 74%. In contrast, May offers warmer temperatures with a minimum of 4°C (39°F) and a peak reaching up to 36°C (97°F), averaging 18°C (64°F). This month enjoys much lower precipitation, totaling just 11 mm (0.4 in) over only 2 days, and has a significantly lower humidity level of 46%. For more specific details on weather conditions, you can refer to Julian weather in May.
December and June present contrasting weather patterns. In December, temperatures swing from a frigid low of -3°C (27°F) to a mild high of 26°C (79°F), averaging around 10°C (51°F). This month typically sees a moderate amount of precipitation, with 47 mm (1.9 in) expected over about five days, resulting in a humid environment with levels reaching 74%. In stark contrast, June boasts significantly warmer temperatures, with a minimum of 8°C (46°F) and a soaring maximum of 40°C (105°F), averaging at 23°C (74°F). This month experiences minimal rainfall, only around 2 mm (0.1 in) across no rainy days, contributing to a drier atmosphere with lower humidity levels of 48%. For more details on the June weather, you can visit Julian weather in June.
The weather in December and July presents a striking contrast. December experiences cooler temperatures, ranging from a minimum of -3°C (27°F) to an average of 10°C (51°F) and a maximum of 26°C (79°F), accompanied by relatively high humidity at 74%. With about 47 mm (1.9 in) of precipitation over 5 days, December can feel quite damp. In stark comparison, July boasts much warmer conditions, with temperatures fluctuating between a minimum of 12°C (53°F) and a sizzling maximum of 40°C (104°F), along with an average of 27°C (80°F). July is significantly drier, receiving only 18 mm (0.7 in) of precipitation over just 3 days and a lower humidity level of 46%. For more details on July weather specifics, you can visit Julian weather in July.
When comparing the weather in December and August, the differences are striking. December experiences a wide range of temperatures, with a minimum of -3°C (27°F) and a maximum of 26°C (79°F), leading to an average temperature of around 10°C (51°F). This month also sees higher humidity at 74% and approximately 47 mm (1.9 in) of precipitation over about five days. In contrast, August offers much warmer conditions, with temperatures ranging from a minimum of 14°C (57°F) to a sizzling maximum of 41°C (106°F), resulting in a comfortable average of 27°C (80°F). Additionally, August is characterized by lower humidity at 42% and significantly less precipitation, with only 14 mm (0.6 in) over four days. For more detailed insights into the climate, you can explore Julian weather in August.
December and September exhibit stark contrasts in weather conditions. In December, temperatures range from a chilly minimum of -3°C (27°F) to a pleasant maximum of 26°C (79°F), with an average around 10°C (51°F). This month sees about 47 mm (1.9 in) of precipitation, spread over five days, creating a humid atmosphere with 74% humidity.
In comparison, September boasts a much warmer palate, with temperatures from a comfortable minimum of 8°C (46°F) to an extreme maximum of 43°C (109°F) and an average of 24°C (75°F). The month is notably drier, receiving only 12 mm (0.5 in) of precipitation over just two days and exhibiting lower humidity at 52%.
For more details on September weather in Julian, you can check this link: Julian weather in September.
When comparing the weather in December and October, distinct differences emerge. December features cooler temperatures, with a minimum of -3°C (27°F) and an average of 10°C (51°F), while October boasts a more temperate climate with a minimum of 3°C (39°F) and an average of 19°C (66°F). Notably, October can reach much higher maximum temperatures, soaring up to 36°C (98°F), compared to December's peak of 26°C (79°F). Precipitation in December is considerably higher at 47 mm (1.9 in) over five days, while October only sees about 10 mm (0.4 in) on a single day. The humidity levels also differ, with December maintaining a higher average of 74% compared to October's more comfortable 58%. For a closer look at October weather conditions, refer to Julian weather in October.
In comparing the weather between November and December, we can see notable differences in temperature and precipitation. December experiences a wider range of temperatures, with a minimum of -3°C (27°F) and a maximum of 26°C (79°F), while November's temperatures are milder, ranging from a minimum of 2°C (35°F) to a maximum of 31°C (87°F). Additionally, December brings more precipitation, totaling 47 mm (1.9 in) over 5 days, compared to November's 20 mm (0.8 in) over just 2 days. Humidity also increases in December, averaging 74%, compared to November's average of 66%. For more detailed insights on November weather, you can check Julian weather in November.
December in Julian brings a striking change in weather as the year winds down. The cool atmosphere is accompanied by an average temperature of 10°C, offering a refreshing contrast to the warmer months, while chilly nights can dip as low as -3°C. With humidity levels at 74% and a modest 47 mm of precipitation over just five days, the month often feels crisp and invigorating. This season invites visitors to embrace the beauty of winter in Julian, offering a unique charm that stands apart from the sunny allure of summer. For a more in-depth look at the seasonal changes and climate specifics, check out Julian Climate.