December Weather in Anaheim, United States

Last updated: February 24, 2025

December in Anaheim, United States, welcomes a delightful blend of mild temperatures and refreshing humidity. With daytime highs reaching a pleasant 27°C (82°F) and nighttime lows dropping to a cozy 5°C (42°F), residents and visitors alike can enjoy comfortable outdoor activities. The average temperature stands at a comfortable 14°C (58°F), creating an inviting atmosphere. Though precipitation is relatively modest at 68 mm (2.7 in) over 5 days, the humidity level of 71% adds a touch of briskness to the air. Embrace the charm of Anaheim’s December, where warm days and cool nights create a unique experience.

December Temperature in Anaheim

In December, Anaheim experiences a gentle shift towards cooler temperatures as winter approaches. The minimum temperature hovers around 5°C (42°F), providing a crisp start to the month, while the average settles at a comfortable 14°C (58°F). As the days unfold, the maximum temperature rarely exceeds 27°C (82°F), creating a pleasant atmosphere for outdoor activities. Compared to the milder months preceding it, December offers a refreshing break, reflecting a gradual decline from the warmer highs seen in previous months. This seasonal transition not only enhances the charm of the city but also sets the stage for festive celebrations and gatherings under the Californian sun.

December Weather in Anaheim: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Anaheim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec575759636467727372696357
Data source: Temperature data for Anaheim generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Anaheim

In December, Anaheim experiences a notable uptick in precipitation, with 68 mm (2.7 in) of rainfall recorded across 5 days. This marks a significant increase compared to the drier months of summer, where the city received little to no rain. As the year comes to a close, December's precipitation is reminiscent of January's peak, both featuring a heightened number of rainy days compared to the drier stretches from June through September, which often see less than 5 mm of rain. The pattern suggests a transition into wetter winter months, setting the stage for the typically much-needed rainfall that sustains the region through the drier seasons ahead.

December Precipitation Trends in Anaheim

The chart displays monthly precipitation patterns in Anaheim, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec6552552312432391868
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Anaheim

In Anaheim, December experiences an average humidity of 71%, marking a slight increase from the drier months of October and November, which recorded 67% and 68% respectively. Throughout the year, humidity levels exhibit a gentle ebb and flow, with the peak occurring in February at 79%. This seasonal trend indicates that while winter months tend to be a bit more humid, they still remain significantly less oppressive compared to the height of summer. Overall, the gradual decline from the summer highs to the moderate levels in winter suggests a comfortable climate for locals and visitors alike, making December an inviting time to enjoy what Anaheim has to offer.

December Average Humidity in Anaheim

This chart illustrates the average monthly humidity levels in Anaheim, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec74%79%75%71%70%72%73%69%68%67%68%71%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Anaheim

In December, Anaheim experiences a moderate UV Index level of 4, accompanied by a burn time of about 30 minutes. This marks a noticeable decline from the extreme levels observed during the peak summer months, where the index soared to 11 in June and July. As the year winds down, the shifting trend towards lower UV exposure makes December a more forgiving month for outdoor activities, allowing residents and visitors to enjoy the beautiful California weather without the heightened risks associated with stronger sunlight. For those planning their sun protection strategies, understanding these seasonal variations is key—learn more about the UV Index throughout the year at Anaheim UV Index.

Maximum UV Index Levels in Anaheim for December

The chart shows the monthly maximum UV Index (UVI) for Anaheim in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec468101011111010754
Data source: Anaheim December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Anaheim

In Anaheim, December marks a subtle shift as the sun graces the city with 226 hours of sunshine, down from the vibrant highs of July and August, which bask in nearly 380 hours. This slight decline reflects the transition from the summer splendor to the more temperate winter months. As temperatures cool and days shorten, residents and visitors can still enjoy a generous amount of sun, particularly compared to the early months of the year, where January starts with a modest 190 hours. Overall, while December might signal the end of the year, its sunshine offers a gentle reminder of the warmth that will return, bridging the gap towards spring's anticipated bloom.

Monthly Sunshine Duration in Anaheim: December Highlighted

The December sunshine duration represents the total number of hours Anaheim experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec190h236h290h318h350h366h379h361h316h293h256h226h
Data source: Anaheim December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Anaheim During December

In December, Anaheim experiences a dip in the likelihood of sunny weather, with a 46% chance of sunshine. This marks a noticeable decrease compared to the late summer and early fall months, which consistently hover above 60%—notably September (68%) and October (65%). While winter tends to bring in cooler temperatures, the trend indicates that sunshine is less frequent during this month compared to earlier in the year, where a more robust 67% chance of sun was found in March and August. Despite this year-end decline, December still offers a charming climate, although it's wise to embrace the possibility of cloudier days ahead.

Percentage of Sunny Days in December in Anaheim

The chart illustrates the percentage of sunny days in Anaheim throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Anaheim experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec61%61%67%51%48%58%61%67%68%65%66%46%
Data source: Anaheim December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Anaheim in December

As we delve into the daylight duration in Anaheim throughout the year, an intriguing trend emerges. Starting at 10 hours in the early months of January and February, daylight gradually increases, peaking at 14 hours during the sun-drenched months of June and July. Following this vibrant summer, daylight begins to wane, with August bringing a subtle 13 hours, a decrease that continues into the fall months. By December, twilight settles in at just 9 hours of daylight, signaling the arrival of winter. This cyclical dance of daylight not only reflects the changing seasons but also invites residents and visitors alike to embrace the diverse outdoor experiences that each month offers.

Average Daylight Hours in Anaheim for December

The chart illustrates the variation in daylight duration in Anaheim throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 11m10h 58m11h 59m13h 2m13h 55m14h 20m14h 6m13h 20m12h 19m11h 17m10h 23m9h 56m
Data source: Anaheim daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Anaheim

As December settles in Anaheim, the winds carry a familiar calm, mirroring the average wind speed of 2.4 m/s (5 mph). This marks a slight increase from the low of the year seen in November, where the winds tapered to a gentler 2.0 m/s (4 mph). Throughout the year, wind patterns reveal a consistency, with gentle breezes prevailing from January to February and maintaining a comfortable pace of 2.4 to 2.8 m/s during the spring and summer months. While December doesn't rev up for the holiday season quite like the early part of the year, it embraces a serene and mild atmosphere, making it a perfect backdrop for festive gatherings under the Californian sun.

Average December Wind Speed in Anaheim

The chart displays monthly wind speed patterns in Anaheim, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.42.42.62.82.82.82.52.42.32.32.02.4 m/s
Data source: Anaheim December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Anaheim Compares to Other Months

The weather in Anaheim 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 Anaheim and find detailed weather information for every month.

In December, the weather typically features minimum temperatures around 5°C (42°F), with averages at 14°C (58°F) and maximums reaching 27°C (82°F). The month experiences about 68 mm (2.7 in) of precipitation over approximately 5 days, accompanied by a humidity level of 71%. In contrast, January shows a slight increase in maximum temperatures, reaching up to 29°C (85°F), while maintaining the same minimum of 5°C (41°F) and an average of 14°C (57°F). Precipitation decreases slightly to 65 mm (2.5 in), with similar rainfall days at 5, but humidity rises slightly to 74%. For more detailed information on January weather, you can visit Anaheim weather in January.

In December, temperatures in Anaheim range from a minimum of 5°C (42°F) to a maximum of 27°C (82°F), with an average temperature of 14°C (58°F). The month experiences about 68 mm (2.7 in) of precipitation over 5 days, and humidity levels are around 71%. In contrast, February presents slightly cooler nighttime temperatures, with a minimum of 4°C (40°F) and a higher maximum of 30°C (85°F), while maintaining the same average temperature of 14°C (58°F). Precipitation decreases to 52 mm (2.0 in) over the same 5 days, but humidity rises to 79%. For a more detailed look at February weather patterns, visit Anaheim weather in February.

In December, the weather in Anaheim features mild temperatures, ranging from a minimum of 5°C (42°F) to a maximum of 27°C (82°F), with an average of 14°C (58°F). This month experiences about 68 mm (2.7 inches) of precipitation over approximately 5 days, coupled with a humidity level of 71%. In contrast, March sees slightly warmer temperatures, with a minimum of 7°C (44°F) and a similar maximum of 27°C (81°F), resulting in an average of 15°C (60°F). Additionally, March has slightly less precipitation at 55 mm (2.2 inches) but occurs over more days, totaling 8, and features a higher humidity of 75%. For more details, check out Anaheim weather in March.

In December, temperatures range from a minimum of 5°C (42°F) to a maximum of 27°C (82°F), with an average of 14°C (58°F). The month sees about 68 mm (2.7 in) of precipitation over approximately 5 days, resulting in a humidity level of 71%. In contrast, April offers warmer conditions, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 34°C (94°F) and an average of 17°C (63°F). April is considerably drier, receiving only 23 mm (0.9 in) of precipitation in about 2 days, and humidity remains similar at 70%. For more details on the weather patterns during this month, check out Anaheim weather in April.

In December, temperatures range from a minimum of 5°C (42°F) to a maximum of 27°C (82°F), with an average of 14°C (58°F). The month typically experiences about 68 mm (2.7 in) of precipitation over five days, and the humidity remains relatively high at 71%. In contrast, May sees warmer conditions, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 30°C (86°F) and an average of 18°C (64°F). Precipitation is significantly lower, at just 12 mm (0.5 in) over three days, while humidity is slightly reduced at 70%. For more detailed insights on the weather this month, check out Anaheim weather in May.

December and June present contrasting weather conditions. In December, temperatures range from a minimum of 5°C (42°F) to a maximum of 27°C (82°F), with an average of 14°C (58°F). The month experiences about 68 mm (2.7 in) of precipitation over five days, accompanied by a humidity level of 71%. In contrast, June boasts milder temperatures, with a minimum of 14°C (57°F), an average of 20°C (68°F), and a maximum of 33°C (91°F). Remarkably, June sees minimal precipitation, just 4 mm (0.2 in), and enjoys clear skies with no rainy days. Humidity remains slightly higher at 72%. For more detailed insights, check out Anaheim weather in June.

In December, temperatures in Anaheim range from a minimum of 5°C (42°F) to a maximum of 27°C (82°F), with an average of 14°C (58°F), accompanied by 68 mm (2.7 in) of precipitation over about five days. This cooler, wetter month contrasts sharply with July, where the temperatures rise significantly, featuring a minimum of 16°C (61°F) and soaring to a maximum of 39°C (103°F), with an average temperature of 22°C (72°F). Remarkably, July experiences minimal precipitation at just 3 mm (0.1 in) and no rainy days, showcasing a dry heat and slightly higher humidity at 73%. For more detailed information, check out Anaheim weather in July.

When comparing the weather in December and August, it's clear that August is significantly warmer. December experiences a range of temperatures with a minimum of 5°C (42°F) and a maximum of 27°C (82°F), while in August, the temperatures are much higher, ranging from a comfortable 15°C (60°F) to a scorching 34°C (94°F). Additionally, December sees more rain, with 68 mm (2.7 in) of precipitation spread across five days, whereas August is notably dry, recording only 2 mm (0.1 in) with no rainy days at all. The humidity levels remain quite similar, with December at 71% and August at 69%. For more details on August's pleasant conditions, you can check out Anaheim weather in August.

In comparing the weather of December and September, December offers a more moderate temperature range, with minimums around 5°C (42°F) and maximums reaching up to 27°C (82°F). This contrasts sharply with September, which can experience much warmer conditions, boasting minimums of 15°C (58°F) and maximums that can soar up to 38°C (102°F). Precipitation also varies significantly between the two months; December has approximately 68 mm (2.7 in) of rainfall over five days, while September remains remarkably dry with only 3 mm (0.1 in) and no rainy days. Humidity levels are relatively similar, with December at 71% and September slightly lower at 68%. For a closer look at the specifics of September's climate, visit Anaheim weather in September.

When comparing the weather in December to that of October, we see notable differences in temperature and precipitation. In December, temperatures range from a minimum of 5°C (42°F) to a maximum of 27°C (82°F), averaging around 14°C (58°F), while October boasts warmer temperatures with a minimum of 11°C (52°F) and a maximum reaching 38°C (101°F), averaging 20°C (69°F). Furthermore, December experiences more precipitation, totaling 68 mm (2.7 inches) over about 5 days, in contrast to October's relatively dry conditions, which see just 9 mm (0.4 inches) over 2 days. Humidity levels are slightly higher in December at 71%, compared to October's 67%. For more detailed insights, you can check out Anaheim weather in October.

In comparing the weather conditions of December and November, we see some notable differences. December experiences a cooler temperature range with a minimum of 5°C (42°F) and an average of 14°C (58°F), while November is slightly warmer, featuring a minimum of 8°C (46°F) and an average of 17°C (63°F). Additionally, December is marked by increased precipitation of 68 mm (2.7 in) across 5 days, compared to the much drier November, which has only 18 mm (0.7 in) over 2 days. Humidity levels are relatively similar, with December at 71% and November at 68%. For more detailed information on November’s weather, you can check Anaheim weather in November.

Compare Anaheim's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Anaheim

As December rolls into Anaheim, the weather takes a noticeable turn, offering a refreshing contrast to the warmer months. Daytime temperatures tend to be milder, paired with cooler evenings that invite cozy sweaters and warm drinks. This month also marks a slight uptick in precipitation, with occasional rain showers that bring a welcome change to the typical dry climate, making it one of the wetter periods of the year. With humidity levels hovering around 71%, the air feels a bit more crisp and invigorating. Overall, December's temperate climate creates a unique atmosphere, perfect for holiday festivities and outdoor enjoyment. For more details on seasonal variations, visit Anaheim Climate.