December Weather in Avalon, United States

Last updated: February 24, 2025

In December, Avalon, United States experiences a captivating mix of chilly temperatures and significant precipitation. With a maximum temperature reaching 18°C (64°F) and a minimum dipping down to -7°C (20°F), the average hovers around a brisk 7°C (44°F). The month sees about 115 mm (4.5 in) of rainfall spread over 11 days, resulting in 81% humidity that adds to the wintery atmosphere. December in Avalon transforms the landscape, inviting residents and visitors alike to embrace the unique seasonal charm.

December Temperature in Avalon

In December, Avalon experiences a notable dip in temperatures as winter settles in. The month begins with a minimum temperature of -7°C (20°F), signaling the coldest days of the year. However, the average temperature hovers around 7°C (44°F), making it a chilly but bearable month for locals and visitors alike. Despite the drop, the temperatures still peak at a comfortable 18°C (64°F) during the day, offering a blend of winter’s cold embrace with sunny intervals. This month serves as a transition into full winter, with temperatures consistently lower than those in the preceding months, highlighting a marked cooling trend that sets the stage for the colder months ahead.

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.
JanFebMarAprMayJunJulAugSepOctNovDec394144526070777672645244
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, United States, brings a noteworthy 115 mm (4.5 in) of precipitation over approximately 11 days, signifying a continuation of the region's wet winter pattern. This amount is consistent with the previous months, reflecting a slight increase compared to November’s 90 mm (3.5 in), while shaping up as one of the wetter months of the year, particularly following October’s peak at 136 mm (5.4 in). The rainfall during December often gives way to lush greenery, preparing the landscape for the drier months ahead. As the year draws to a close, the trend clearly illustrates Avalon’s characteristic blend of moisture and mild temperatures, offering a serene backdrop to the holiday season.

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.
JanFebMarAprMayJunJulAugSepOctNovDec7610710491118691169810913690115
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 81%, slightly higher than the preceding months, which reflects a mild uptick that stabilizes within the year's overall trend. Throughout the year, humidity in Avalon tends to gradually decrease from a robust 83% in January to a minimum of 74% in May and September. However, as winter approaches, the humidity levels subtly rise again, peaking in November before settling at a comfortable 81% in December. This cyclical pattern highlights Avalon’s transitional climate, where moisture levels fluctuate but remain relatively high, creating a cozy atmosphere as the year comes to a close.

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.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%81%79%74%77%76%77%74%75%80%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Avalon

In Avalon, the UV Index experiences a dynamic shift throughout the year, revealing distinct trends. While December sees a moderate UV Index of 3, aligning with January's similar ratings, the previous months showcase a steep escalation into the very high category, peaking in April through August at a level of 10. This pattern highlights a critical window for sun safety, particularly in the spring and summer months where the burn time plummets to just 15 minutes. As the year winds down in November, the UV Index drops to 4 before stabilizing again at 3 in December, emphasizing the importance of vigilance and appropriate skin protection year-round. For further insights on UV conditions, check out 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.
JanFebMarAprMayJunJulAugSepOctNovDec3569101010108743
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

December in Avalon, United States, offers a refreshing contrast to the sun-drenched summer months, basking in 188 hours of sunshine. As the year draws to a close, sunlight dims compared to the vibrant 362 hours of July and 340 hours of June, yet this gentle glow still invites outdoor activities and holiday cheer. The transition from the year’s peak light in May, with its 308 hours, begins a steady decline into winter. Despite the shorter days, December's sunshine remains a beautiful backdrop for cozy gatherings, reminding us of warmer days ahead as we prepare to welcome a new year.

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.
JanFebMarAprMayJunJulAugSepOctNovDec158h182h262h272h308h340h362h330h289h247h228h188h
Data source: Avalon December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Avalon During December

When considering the likelihood of sunny weather in Avalon during December, it's noteworthy that the chances drop to 37%, the lowest percentage in the winter months. Following the trend throughout the year, December mirrors the patterns established in the preceding months, particularly with the significant dip observed in February at 28% and the generally fluctuating probabilities from spring through summer. Although November enjoys a more favorable 55% chance of sunshine, December signals the onset of winter, bringing a notable shift towards cloudier days and the possibility of precipitation. Thus, as the year winds down, residents and visitors alike should prepare for a more overcast December, reflecting Avalon’s transitional climate into the colder season.

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.
JanFebMarAprMayJunJulAugSepOctNovDec50%29%54%49%47%44%55%37%56%47%55%37%
Data source: Avalon December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Avalon in December

As winter approaches in Avalon, United States, December brings a return to shorter days, with daylight lasting just 9 hours. This marks a decline from the bloom of summer, where July reaches its peak with 14 hours of sunlight. A subtle shift can be observed as the year progresses: after a gradual increase from the 10 hours of daylight in February to the 14 hours enjoyed in the heart of summer, daylight duration begins to wane again. By the time we reach December, the day's light mirrors what is experienced at the year's start, creating a rhythmic ebb and flow of daylight that highlights the seasonal changes Avalon experiences throughout the year.

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.
JanFebMarAprMayJunJulAugSepOctNovDec9h 46m10h 44m11h 58m13h 15m14h 19m14h 51m14h 33m13h 36m12h 23m11h 7m10h 1m9h 27m
Data source: Avalon daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Avalon

In December, Avalon experiences a gentle return to milder wind speeds, with an average of 5.5 m/s (12 mph). This marks a slight decline compared to the brisk gales of November, which reached 6.5 m/s (15 mph). As autumn transitions to winter, the winds gradually ease, reflecting a broader trend throughout the year where the strongest breezes occur in the late fall and early winter months. Throughout the year, wind speeds have fluctuated, with the highest recorded in February at 6.8 m/s (15 mph), while the summer months typically witness the calmest conditions. This pattern not only shapes the local climate but also influences the atmosphere of Avalon, as residents enjoy the tranquil December air, perfect for cozy strolls amidst the season's festive spirit.

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.
JanFebMarAprMayJunJulAugSepOctNovDec6.06.86.25.95.35.04.74.05.56.06.55.5 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 in Avalon typically range from a minimum of -7°C (20°F) to a maximum of 18°C (64°F), with an average of 7°C (44°F). The month sees substantial precipitation, totaling 115 mm (4.5 in) over about 11 days, and maintains a humidity level of 81%. In contrast, January experiences even colder temperatures, dipping to a minimum of -12°C (12°F) and averaging around 4°C (39°F), with highs reaching 16°C (61°F). Precipitation decreases to 75 mm (3.0 in) across 9 days, while humidity slightly rises to 83%. For a more detailed look at the weather in Avalon during January, you can visit Avalon weather in January.

December and February exhibit noticeable differences in weather patterns. While December features a wider temperature range with a minimum of -7°C (20°F) and a maximum of 18°C (64°F), February typically experiences colder conditions, with temperatures ranging from -11°C (13°F) to a maximum of 14°C (57°F). Precipitation levels are relatively similar between the two months, with December receiving 115 mm (4.5 in) over 11 days and February seeing 107 mm (4.2 in) over 12 days. Additionally, humidity remains high in both months, with December at 81% and February slightly higher at 82%. For those interested in specifics, you can find more details about the weather in Avalon during February here: Avalon weather in February.

December and March in Avalon present a transition from winter to early spring, showcasing similar temperature ranges but differing slightly in overall conditions. In December, temperatures can drop to a chilly minimum of -7°C (20°F), with average highs reaching 18°C (64°F). The month experiences significant precipitation, totaling 115 mm (4.5 in) across 11 days, contributing to a damp and chilly atmosphere with high humidity at 81%. In contrast, March sees a slightly milder temperature range, with a minimum of -5°C (24°F) and maxing out at 18°C (65°F), aligned closely with December's upper limits. Precipitation decreases to 103 mm (4.1 in) spread over 10 days, maintaining the same humidity level of 81%. For more detailed weather insights, check out Avalon weather in March.

In December, the weather is significantly colder, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 18°C (64°F) and an average of 7°C (44°F). The month experiences 115 mm (4.5 in) of precipitation over 11 days, and humidity is relatively high at 81%. In contrast, April brings milder temperatures, with a low of 2°C (35°F) and a high of 22°C (73°F), averaging around 11°C (52°F). Although there is also precipitation of 91 mm (3.6 in) over the same number of days, the humidity is slightly lower at 79%. For a more detailed look at what to expect, check out Avalon weather in April.

December and May present contrasting weather patterns. In December, temperatures fluctuate between a chilly -7°C (20°F) and a mild 18°C (64°F), with an average of 7°C (44°F). The month experiences significant precipitation, totaling 115 mm (4.5 in) over 11 days, accompanied by high humidity levels of 81%. In stark contrast, May boasts much warmer temperatures, ranging from a minimum of 5°C (40°F) to a pleasant maximum of 25°C (77°F), averaging around 15°C (60°F). Precipitation levels are slightly higher at 118 mm (4.6 in) over the same number of days, but humidity drops to a more comfortable 74%. For a closer look at the weather dynamics during May, check out Avalon weather in May.

December and June showcase starkly different weather patterns. In December, temperatures can drop as low as -7°C (20°F), with an average of 7°C (44°F) and a maximum of 18°C (64°F). Winter precipitation is relatively high at 115 mm (4.5 in) spread over 11 days, accompanied by a humidity level of 81%. In contrast, June offers a warmer climate, with minimum temperatures around 12°C (54°F), averaging 21°C (70°F), and peaking at 28°C (83°F). This month experiences less rainfall, totaling 68 mm (2.7 in) over just 8 days, and slightly lower humidity at 77%. For more details on June weather, you can visit Avalon weather in June.

When comparing the weather in December and July, the contrasts are striking. December features a chilly average temperature of 7°C (44°F), with nighttime lows plummeting to -7°C (20°F), while July enjoys much warmer temperatures, averaging 25°C (77°F) during the day and reaching maximums of 31°C (88°F). Precipitation levels are similar in both months, with December receiving about 115 mm (4.5 in) over 11 days and July slightly higher at 116 mm (4.6 in) over just 10 days. Additionally, December's humidity is notably higher at 81%, compared to July’s 76%. For more details on July weather patterns, you can check Avalon weather in July.

When comparing the weather in December and August, we see a striking contrast in temperatures and conditions. December experiences much cooler temperatures, ranging from a minimum of -7°C (20°F) to a maximum of 18°C (64°F), with an average temperature of 7°C (44°F). The month also sees higher humidity levels at 81% and more precipitation, totaling 115 mm (4.5 in) over 11 days. In stark contrast, August boasts warmer temperatures, with a minimum of 18°C (65°F) and an average of 25°C (76°F), peaking at 29°C (84°F). This month has slightly less rain, accumulating 98 mm (3.9 in) over 12 days, and a lower humidity of 77%. If you're interested in learning more about seasonal weather patterns, you can explore Avalon weather in August.

Comparing the weather in December and September reveals notable differences in temperature and conditions. In December, temperatures range from a chilly minimum of -7°C (20°F) to a mild maximum of 18°C (64°F), with an average around 7°C (44°F). The month experiences about 115 mm (4.5 inches) of precipitation over 11 days, accompanied by high humidity levels at 81%. In contrast, September offers a much warmer climate, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 29°C (84°F), averaging 22°C (72°F). The precipitation is slightly lower at 109 mm (4.3 inches) over 9 days, and humidity is more moderate at 74%. For more detailed insights on the September weather, check out Avalon weather in September.

The weather in December contrasts sharply with that of October. In December, temperatures range from a chilly minimum of -7°C (20°F) to a moderate maximum of 18°C (64°F), averaging around 7°C (44°F). In comparison, October showcases milder conditions with minimum temperatures of 7°C (45°F) and maximums reaching 27°C (81°F), averaging 18°C (64°F). Additionally, December experiences higher humidity at 81% and more precipitation over 11 days compared to October's 75% humidity and slightly less rain over 9 days. For more detailed insights into October weather, you can check Avalon weather in October.

In comparing the weather of December and November, December tends to be cooler, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 18°C (64°F), while November features slightly milder conditions, with temperatures ranging from -3°C (28°F) at night to a peak of 21°C (70°F) during the day. Precipitation in December is also higher, totaling 115 mm (4.5 in) spread over 11 days, compared to November's 90 mm (3.5 in) over 8 days. Interestingly, both months share similar humidity levels, with December at 81% and November at 80%. For a more detailed examination of November weather, you can 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 transforms under its cool embrace, with a unique blend of chilly temperatures and considerable precipitation that distinguishes it from the milder months of fall. The average temperature dips, presenting a crisp atmosphere that can drop sharply at night, introducing frost and a brisk charm. Moreover, the month sees its fair share of rain, with frequent damp days that contribute to the overall humidity, making this time of year feel particularly festive and cozy. For those looking to explore what Avalon has to offer year-round, the December weather provides a different yet captivating experience that complements its usual summer warmth. For more detailed insights, visit Avalon Climate.