December Weather in Avalon, United States

Last updated: February 24, 2025

Avalon, United States, experiences a mild December characterized by an average temperature of 15°C (60°F), with maximums peaking at 20°C (69°F) and minimums dipping to 11°C (52°F). This month sees approximately 50 mm (2.0 in) of precipitation spread over 5 days, contributing to a relatively high humidity level of 71%. As the holiday season approaches, Avalon’s weather offers a fresh coastal ambiance, making it an inviting destination for winter activities and leisurely strolls along the beach.

December Temperature in Avalon

In December, Avalon experiences a gentle transition into winter, characterized by mild temperatures that linger between 11°C (52°F) and 20°C (69°F). The month typically holds an average temperature of 15°C (60°F), which is consistent with the late fall climate, showing only a slight dip compared to November. This pattern suggests a stable, temperate climate, where cooler days are balanced by the warmth of the sun. The minimal variation in temperatures marks December as a month of comfort, inviting residents and visitors alike to partake in the serene charm of Avalon during the holiday season. As the year comes to a close, December maintains a welcoming atmosphere, perfect for outdoor festivities and leisurely strolls amidst the seasonal decorations.

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

The chart illustrates December temperature patterns in Avalon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec585757596062666768666360
Data source: Temperature data for Avalon generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Avalon

December in Avalon ushers in a notable increase in precipitation, registering 50 mm (2.0 in) over 5 days, making it the wettest month of the year. This surge follows a trend of generally low rainfall during the summer months, with July and August averaging less than 5 mm each. The onset of December signals a transition from the drier, warmer months to a period of cooler and wetter weather. Compared to the relatively sparse rainfall in the spring and summer, December's totals mark a significant uptick, indicating a shift towards the wetter conditions typical of winter, which may also serve as a precursor to the moisture-rich months ahead in early spring.

December Precipitation Trends in Avalon

The chart displays monthly precipitation patterns in Avalon, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3938311611432361750
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Avalon

In December, Avalon experiences a humidity level of 71%, marking a slight increase from the lower levels observed in October and November. This uptick is indicative of the transition into winter, as the region tends to maintain a relatively stable humidity range throughout the year. Starting from a peak of 79% in February, the overall trend showcases a gradual decline in humidity during the warmer months, with August hitting its lowest point at 69%. However, as the year draws to a close, December's humidity reflects the lingering moisture in the air, characteristic of the colder season. This persistent yet moderate humidity contributes to the unique atmosphere of Avalon during winter, balancing the crispness of December with a hint of oceanic warmth.

December Average Humidity in Avalon

This chart illustrates the average monthly humidity levels in Avalon, 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 Avalon

As December arrives in Avalon, the UV Index drops to 4, placing it back in the moderate exposure category. This signals a transition from the extreme levels seen in the summer months, where Indices peaked at 12 in July, to a more manageable sun exposure. With a burn time of 30 minutes, residents and visitors can enjoy outdoor activities, but should still be mindful of sun safety. Compared to earlier in the year, such as the high extremes of 11 in May and June, this month's index offers a welcome respite, allowing for leisurely outings without excessive risk. For more detailed information on UV levels throughout the year, you can visit Avalon UV Index.

Maximum UV Index Levels in Avalon for December

The chart shows the monthly maximum UV Index (UVI) for Avalon 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.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Avalon 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 Avalon

In December, Avalon, United States, experiences a notable shift in daylight, providing 228 hours of sunshine. As the year draws to a close, this month reflects a steady decline in sunlight compared to the vibrant summer months of July and June, which bask in 376 and 358 hours respectively. While December's sunshine may not match the brightness of mid-year, it still offers a cozy glow, especially when juxtaposed with the colder temperatures that accompany winter. Overall, the trend highlights a gradual increase in sunshine from the start of the year, peaking in mid-summer, before gently tapering off into the shorter, chillier days of winter.

Monthly Sunshine Duration in Avalon: December Highlighted

The December sunshine duration represents the total number of hours Avalon 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.
JanFebMarAprMayJunJulAugSepOctNovDec193h235h292h320h346h358h376h358h314h293h256h228h
Data source: Avalon December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Avalon During December

In Avalon, December marks a transition as the likelihood of sunny weather dips to 49%, a stark contrast to the sunnier months preceding it. This decline in sunshine is part of a broader trend: while early spring months like March enjoy a bright 70% chance of sun, the summer months also shine particularly bright, peaking in August with 68%. Interestingly, the chances of clear skies are notably stronger in the fall, with a 60% likelihood in November, suggesting that the tail end of the year could bring some pleasant surprises. However, as winter approaches, residents should prepare for more overcast days, balancing their outdoor plans with the understanding that the sun may play hard to get in December.

Percentage of Sunny Days in December in Avalon

The chart illustrates the percentage of sunny days in Avalon 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 Avalon experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec61%61%70%49%34%44%59%68%65%65%60%49%
Data source: Avalon December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Avalon in December

In Avalon, United States, December ushers in the shortest daylight of the year, with only 9 hours illuminating each day. The gradual decline in daylight begins after the blissful longer days of summer in June and July, which bathe the region in 14 hours of sunshine. As autumn descends, the daylight hours slowly wane, dropping to 10 hours by November. This trend reflects a broader seasonal rhythm, where daylight diminishes in the colder months, encapsulating a cycle that sees short days in winter followed by the gradual return of longer, brighter days as spring approaches. The transition from the vibrant summer sunshine to the cozy, dimmer days of December evokes a sense of seasonal change, inviting residents to embrace the tranquility of winter.

Average Daylight Hours in Avalon for December

The chart illustrates the variation in daylight duration in Avalon throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 12m10h 59m12h13h 1m13h 53m14h 18m14h 4m13h 18m12h 19m11h 18m10h 24m9h 58m
Data source: Avalon daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Avalon

As December arrives in Avalon, the winds pick up slightly, averaging 4.7 m/s (10 mph), a refreshing change after the calm of November's 3.0 m/s (7 mph). This uptick hints at the shifting seasons, reminiscent of the more variable winds experienced earlier in the year, particularly from March to April when speeds averaged around 5.1 m/s (12 mph) and 4.7 m/s (11 mph). Overall, December’s breezy charm contributes to a sense of anticipation for the winter months, bridging the gap between the calmer fall days and the gustier, chillier winds of January ahead. The wind patterns suggest a return to moderate strength, encouraging outdoor activities while adding a crisp edge to the festive atmosphere.

Average December Wind Speed in Avalon

The chart displays monthly wind speed patterns in Avalon, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.14.45.14.74.04.13.73.93.83.93.04.7 m/s
Data source: Avalon December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Avalon Compares to Other Months

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

In December, temperatures range from a minimum of 11°C (52°F) to a maximum of 20°C (69°F), with an average temperature of 15°C (60°F). The month experiences about 50 mm (2.0 in) of precipitation over approximately 5 days, along with a relative humidity of 71%. In contrast, January sees slightly cooler temperatures, with a minimum of 10°C (51°F) and the same maximum of 20°C (69°F), maintaining an average of 15°C (59°F). Precipitation in January decreases to 39 mm (1.5 in) over just 4 days, while humidity rises slightly to 74%. For more details on the climate during this month, check out Avalon weather in January.

In comparing the weather between December and February, we notice that both months exhibit relatively mild temperatures, with December featuring an average of 15°C (60°F), while February sees a slight dip to 14°C (58°F). Temperatures range from a minimum of 11°C (52°F) in December to 9°C (49°F) in February, with both months peaking around 20°C (69°F) for December and 19°C (67°F) for February. Precipitation is slightly higher in December at 50 mm (2.0 in) compared to 38 mm (1.5 in) in February, though both months experience rain on approximately five days. Interestingly, February tends to have a higher humidity level at 79%, compared to December's 71%. For those interested in more specifics, you can find additional information here: Avalon weather in February.

In December, the weather tends to be slightly warmer with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 20°C (69°F), accompanied by 50 mm (2.0 in) of precipitation over about five days. The humidity level is around 71%, contributing to a relatively comfortable atmosphere. In contrast, March experiences cooler temperatures, with averages dipping to a minimum of 10°C (50°F) and a maximum of 17°C (63°F). Precipitation is lower at 31 mm (1.2 in), but occurs over about six days, and humidity rises slightly to 75%. For a more detailed look at March weather, you can check Avalon weather in March.

In comparing the weather between December and April, we see some notable differences. December experiences slightly cooler temperatures, with an average of 15°C (60°F) and a maximum reaching 20°C (69°F). It also sees more precipitation, with 50 mm (2.0 in) over approximately 5 days and a humidity level of 71%. In contrast, April typically has a minimum temperature of 12°C (53°F) and a maximum average of 21°C (71°F), but significantly less rainfall at just 16 mm (0.6 in) over 2 days, along with a humidity level of 70%. For a more detailed look at April weather, you can visit Avalon weather in April.

December and May exhibit some similarities in temperature, with both months having an average of 15°C (60°F), but they differ noticeably in other climatic aspects. In December, temperatures range from a minimum of 11°C (52°F) to a maximum of 20°C (69°F), accompanied by higher precipitation levels of 50 mm (2.0 in) over approximately five days. In contrast, May features slightly warmer nighttime temperatures, ranging from a minimum of 12°C (54°F), but offers a significantly drier experience with only 10 mm (0.4 in) of precipitation occurring on just one day. Humidity remains relatively consistent, at 71% in December and 70% in May, implying a comparable level of moisture in the air. For more detailed information, consider checking out Avalon weather in May.

In December, the weather is generally cooler, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 20°C (69°F), resulting in an average of 15°C (60°F). This month sees around 50 mm (2.0 in) of precipitation spread over approximately 5 days, contributing to a relatively humid atmosphere with 71% humidity. In contrast, June experiences slightly warmer temperatures, with a minimum of 14°C (57°F), an average of 17°C (62°F), and a maximum of 22°C (71°F). June is notably drier, with only 4 mm (0.2 in) of precipitation and no rainy days, while maintaining a similar humidity level of 72%. For more details on June weather, you can check Avalon weather in June.

December and July present quite the contrast in weather. In December, temperatures range from a mild minimum of 11°C (52°F) to a comfortable maximum of 20°C (69°F), with an average of 15°C (60°F). The month is relatively wet, with about 50 mm (2.0 in) of precipitation falling over five days, contributing to a humidity level of 71%. In contrast, July enjoys warmer conditions, with temperatures starting at a minimum of 16°C (60°F) and reaching a peak of 23°C (74°F), averaging around 19°C (66°F). Remarkably, July experiences very little rain, recording just 3 mm (0.1 in) and having no days with precipitation, while maintaining a similar humidity level of 73%. For more details on July’s climate, you can check out Avalon weather in July.

In comparing the weather of December and August, notable differences emerge. December experiences cooler temperatures with a minimum of 11°C (52°F) and an average of 15°C (60°F), while August is warmer, starting at a minimum of 17°C (62°F) and averaging around 20°C (68°F). Precipitation is more frequent in December, with about 50 mm (2.0 in) falling over five days, whereas August tends to be quite dry with only 2 mm (0.1 in) and no days of rain at all. Humidity levels are relatively similar, with December at 71% and August slightly lower at 69%. For a closer look at August weather, check out Avalon weather in August.

In December, the weather turns cooler with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 20°C (69°F), while September boasts milder conditions with temperatures between 16°C (62°F) and 27°C (80°F). Precipitation is more frequent in December, averaging 50 mm (2.0 in) over five days, compared to almost negligible rainfall in September, which sees only 3 mm (0.1 in) with no rainy days. Humidity levels are relatively similar, with December at 71% and September slightly lower at 68%. For a more detailed look at September weather, you can check Avalon weather in September.

In comparing the weather between December and October, it's clear that October tends to be warmer and drier. October's temperatures range from a minimum of 15°C (60°F) to a maximum of 25°C (78°F), with an average of 19°C (67°F), while December experiences cooler temperatures, ranging from a minimum of 11°C (52°F) to a maximum of 20°C (69°F) with an average of 15°C (60°F). Additionally, October sees significantly less precipitation, with only 6 mm (0.2 in) falling over just 1 day, compared to December's 50 mm (2.0 in) spread over 5 days. Humidity levels are slightly higher in December at 71%, compared to 67% in October. For more detailed insights, check out Avalon weather in October.

In comparing the weather between November and December, we observe that December experiences slightly cooler temperatures, with an average of 15°C (60°F) compared to November's 17°C (63°F). Both months share the same minimum temperature of 11°C (52°F), but December's maximum temperature drops to 20°C (69°F), while November peaks at 22°C (71°F). Precipitation levels also differ significantly; December brings 50 mm (2.0 in) of rain over 5 days, whereas November has a much lighter 17 mm (0.7 in) over just 2 days. Humidity levels are comparable, with December at 71% and November at 68%. For more detailed insights on November's climate, check out Avalon weather in November.

Compare Avalon's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Avalon

As December sets in, Avalon experiences a distinct change in weather compared to other months. The temperatures dip to an average of 15°C (60°F), providing a gentle chill that contrasts with the warmer months. Alongside this cooler climate, humidity levels rise to 71%, creating a refreshing atmosphere. Rainfall becomes more frequent, with about 50 mm spread over just 5 days, marking a shift toward the wetter season. For those seeking to understand Avalon’s unique climate patterns, detailed insights can be found at Avalon Climate.