December Weather in Mount Olympus, United States

Last updated: February 24, 2025

December weather at Mount Olympus, United States offers a striking contrast, with maximum temperatures reaching 11°C (53°F) while the average dips to a chilly -4°C (26°F). The region experiences brisk conditions, with minimum temperatures plunging to -18°C (0°F), creating a frosty landscape ideal for winter activities. Accompanied by 63 mm (2.5 in) of precipitation over 11 days, the month is marked by a humid atmosphere at 88%, ensuring a picturesque winter scene. Visitors can expect a combination of snow-laden vistas and crisp air, making December a captivating time to explore this majestic mountain.

December Temperature in Mount Olympus

In December, temperatures at Mount Olympus experience a notable chill as winter sets in, with minimums plunging to -18°C (0°F). The average temperature hovers around a frosty -4°C (26°F), while daytime highs reach a modest 11°C (53°F). This pattern sets the stage for a shift from the milder autumn months, where temperatures began to drop significantly beginning in November. With the averages transitioning from above freezing in the fall to decidedly wintry in December, the biting cold signals the onset of the snow season, making it an ideal time for winter enthusiasts to embrace the area's serene, snow-covered landscapes.

December Weather in Mount Olympus: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mount Olympus, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec262837425165747161453526
Data source: Temperature data for Mount Olympus 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 Mount Olympus

In December, Mount Olympus experiences a moderate precipitation level of 63 mm (2.5 in), marking a noticeable increase from the drier summer months. Over the month, rainfalls occur on 11 days, which aligns with the increasing trend seen as the year closes. This uptick in precipitation is part of a broader pattern where winter months generally receive more rainfall compared to the summer months, contrasting sharply with the lows of June and July, which see just 24 mm (0.9 in) and 19 mm (0.8 in) respectively. Annual fluctuations reveal December's contributions toward the annual total, enhancing the region's lush landscape and vitality as it transitions into winter.

December Precipitation Trends in Mount Olympus

The chart displays monthly precipitation patterns in Mount Olympus, 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.
JanFebMarAprMayJunJulAugSepOctNovDec727973746924192639514863
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mount Olympus

In Mount Olympus, the humidity levels throughout the year create a notable seasonal pattern. Starting off with a high of 91% in January, the region experiences a gradual decline, reaching its lowest point of 37% in August. As autumn sets in, humidity begins to rise again, peaking at 84% in November before settling at 88% in December. This end-of-year increase signals a return to the wetter conditions typical of the winter months, suggesting a reliance on moisture-laden air as the temperatures begin to drop. Overall, the cycle of humidity in Mount Olympus reflects the natural ebb and flow of the seasons, with winter beginning to reclaim its dampness as the year draws to a close.

December Average Humidity in Mount Olympus

This chart illustrates the average monthly humidity levels in Mount Olympus, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%84%75%62%56%44%37%46%67%84%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mount Olympus

As December arrives in Mount Olympus, the UV Index drops to a moderate level of 3, offering relief from the extreme levels experienced throughout the summer months. With a burn time of 30 minutes, it signals a gradual shift towards less intense sunlight compared to the highs of January through March, where values peak at 11 and 12. This trend of decreasing UV exposure is a welcome aspect of the season, encouraging outdoor enjoyment while still maintaining a mindful approach to sun safety. As you plan your winter activities, take a moment to check the real-time details at Mount Olympus UV Index to stay informed.

Maximum UV Index Levels in Mount Olympus for December

The chart shows the monthly maximum UV Index (UVI) for Mount Olympus 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.
JanFebMarAprMayJunJulAugSepOctNovDec46811111212119653
Data source: Mount Olympus 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 Mount Olympus

As December rolls into Mount Olympus, the city basks in 196 hours of sunshine, wrapping up a year marked by a clear trend of increasing daylight. Beginning with a modest 153 hours in January, the days gradually grow longer and brighter, peaking in the sun-drenched month of July with an impressive 392 hours. Following the summer's zenith, sunshine starts to taper off, yet December still offers a respectable amount, providing a warm, golden glow amidst the winter chill. This yearly rhythm not only showcases the region's dramatic seasonal changes but also highlights its allure, making it a captivating destination throughout the year.

Monthly Sunshine Duration in Mount Olympus: December Highlighted

The December sunshine duration represents the total number of hours Mount Olympus 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.
JanFebMarAprMayJunJulAugSepOctNovDec153h200h261h296h362h385h392h361h313h269h217h196h
Data source: Mount Olympus December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mount Olympus During December

In December, Mount Olympus experiences a 39% chance of sunny weather, marking a notable decline as the year winds down. This dip follows a trend seen throughout the colder months, where the likelihood of clear skies varies. Notably, as we transition from November's 47% chance to December’s, the sun seems to retreat, hinting at the onset of winter. The earlier part of the year typically showcases more promising forecasts, peaking in June and August with a 66% and 76% chance respectively. While December may host the lowest likelihood of sunshine in the latter part of the year, the seasonal rhythm of Mount Olympus offers a beautiful spectrum of weather—from crisp and clear winter days to radiant summer brightness.

Percentage of Sunny Days in December in Mount Olympus

The chart illustrates the percentage of sunny days in Mount Olympus 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 Mount Olympus experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec42%37%49%60%56%66%59%77%76%42%47%39%
Data source: Mount Olympus December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mount Olympus in December

As December settles in, Mount Olympus experiences a return to shorter days, with daylight lasting just 9 hours—mirroring the length seen in January and November. This reduction continues a trend observed throughout the fall, as daylight gradually diminished from the summer peak of 15 hours in June. The month serves as a gentle reminder of the seasonal cycle, where daylight waxes and wanes, creating a rhythmic dance of light and shadow. With each passing month, from the 11 hours of daylight in both March and October to the gradual climb during spring, it’s clear that nature’s timetable is both predictable and enchanting, inviting residents to embrace the cozy warmth of winter amidst the fleeting sunlight.

Average Daylight Hours in Mount Olympus for December

The chart illustrates the variation in daylight duration in Mount Olympus throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 37m10h 39m11h 58m13h 19m14h 27m15h 1m14h 42m13h 41m12h 24m11h 3m9h 53m9h 17m
Data source: Mount Olympus daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Mount Olympus

As December settles in Mount Olympus, the landscape whispers with an invigorating breeze, boasting an average wind speed of 2.3 m/s (5 mph). This uptick is a noticeable shift from the slightly calmer November, which recorded 1.6 m/s (4 mph). Throughout the year, the winds remain relatively gentle, with January and July also clocking in at 1.8 m/s and 1.9 m/s respectively. However, the late autumn to early winter transition unveils a refreshing gustiness, as December joins the ranks of June and August—each reaching 2.3 m/s and 2.2 m/s—indicating a trend of slightly increasing wind speeds as the year draws to a close. The chill of winter harmonizes beautifully with these winds, enhancing the serene yet dynamic atmosphere of this picturesque locale.

Average December Wind Speed in Mount Olympus

The chart displays monthly wind speed patterns in Mount Olympus, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.82.02.02.02.12.31.92.22.12.11.62.3 m/s
Data source: Mount Olympus December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Mount Olympus Compares to Other Months

The weather in Mount Olympus 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 Mount Olympus and find detailed weather information for every month.

In December, temperatures range from a chilly minimum of -18°C (0°F) to a mild maximum of 11°C (53°F), with an average temperature of -4°C (26°F). The month sees about 63 mm (2.5 in) of precipitation across 11 days, accompanied by a high humidity level of 88%. Conversely, January tends to be slightly colder, with minimum temperatures dipping to -21°C (-5°F) and a maximum of 10°C (50°F), while maintaining a similar average of -3°C (26°F). Precipitation increases to 72 mm (2.8 in), also spread over 11 days, and humidity rises slightly to 91%. For those interested in more specific weather conditions, check out Mount Olympus weather in January.

December and February present contrasting winter weather conditions. In December, temperatures range from a minimum of -18°C (0°F) to a maximum of 11°C (53°F), with an average of -4°C (26°F). The month experiences 63 mm (2.5 in) of precipitation over 11 days and a humidity level of 88%. In contrast, February is slightly colder, featuring a minimum temperature of -21°C (-5°F) and a maximum of 14°C (58°F), with an average temperature of -2°C (29°F). February sees increased precipitation at 79 mm (3.1 in) spread over 14 days, accompanied by higher humidity at 92%. For more specific details about winter conditions, check out the Mount Olympus weather in February.

In December, temperatures are generally colder, with a minimum of -18°C (0°F) and an average of -4°C (26°F), while March sees a slight warming trend, with averages rising to 3°C (37°F) and a maximum of 19°C (66°F). Precipitation levels are comparable, with December receiving 63 mm (2.5 in) over 11 days and March slightly higher at 72 mm (2.9 in) over 12 days. Furthermore, December's high humidity of 88% decreases slightly in March to 84%, suggesting a subtle transition as winter gives way to early spring. For more details on weather during this time, check out Mount Olympus weather in March.

In December, temperatures can plunge to a minimum of -18°C (0°F) and average around -4°C (26°F), making it one of the coldest months of the year, with significant humidity levels at 88%. Precipitation occurs on about 11 days, totaling 63 mm (2.5 in), often falling as snow. In contrast, April brings a noticeable warming trend, with temperatures ranging from a minimum of -10°C (15°F) to a maximum of 22°C (72°F), and an average of 5°C (42°F). Although April experiences slightly more precipitation at 74 mm (2.9 in) over the same number of days, the humidity drops to a more comfortable 74%. For more insights into what to expect, check out Mount Olympus weather in April.

In December, the weather is characterized by cold temperatures, with lows dropping to -18°C (0°F) and an average around -4°C (26°F). The maximum temperature hovers at a brisk 11°C (53°F), accompanied by high humidity levels of 88%, which contributes to a wintery feel. Precipitation occurs on about 11 days, totaling 63 mm (2.5 in), adding to the overall chill.

In contrast, May brings a dramatic shift in climate, with minimum temperatures rising to -6°C (22°F) and an average of 11°C (51°F), reaching highs of up to 30°C (87°F). The humidity drops to 62%, and precipitation is slightly higher, totaling 69 mm (2.7 in) over 12 days, marking a transition to a more temperate and pleasant spring atmosphere. For more details on outdoor conditions this month, check out Mount Olympus weather in May.

December and June offer stark contrasts in weather patterns. December experiences much colder temperatures, with lows reaching as low as -18°C (0°F) and an average temperature of -4°C (26°F), while June boasts much milder conditions, with lows only dropping to -1°C (31°F) and an average of 18°C (65°F). Precipitation is more frequent in December, occurring on 11 days with a total of 63 mm (2.5 in), compared to just 24 mm (0.9 in) over 4 days in June. Additionally, December has high humidity levels at 88%, whereas June's humidity is significantly lower at 56%. For more detailed information, you can check out Mount Olympus weather in June.

December weather is characterized by cold temperatures, with a minimum of -18°C (0°F) and an average of -4°C (26°F). The month sees considerable precipitation of 63 mm (2.5 in) over 11 days, coupled with high humidity levels at 88%. In sharp contrast, July offers a much warmer climate, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 35°C (95°F), and an average temperature of 23°C (74°F). July experiences significantly less precipitation—only 19 mm (0.8 in) over 5 days—and lower humidity at 44%. The difference in weather between these two months highlights the stark seasonal variations. For more details on July weather, check out Mount Olympus weather in July.

December and August present starkly contrasting weather conditions. In December, temperatures drop significantly, ranging from a chilling minimum of -18°C (0°F) to a maximum of 11°C (53°F), with an average temperature of -4°C (26°F). The month experiences relatively high precipitation levels at 63 mm (2.5 in) over 11 days, coupled with a high humidity of 88%, creating a cold and damp atmosphere.

Conversely, August boasts much warmer temperatures, with daily highs reaching up to 36°C (96°F) and an average of 22°C (71°F). The minimum temperature in August is a mild 8°C (46°F), and the month is characterized by significantly lower precipitation at just 26 mm (1.0 in) across only 4 days and a humidity level of 37%. This makes August a much drier and warmer month in comparison. For more specific information about the conditions during August, visit Mount Olympus weather in August.

The weather in December contrasts sharply with that of September. In December, temperatures can drop as low as -18°C (0°F) with an average of -4°C (26°F) and a maximum of 11°C (53°F), whereas September offers a milder climate with lows around -4°C (25°F), averages of 16°C (62°F), and highs reaching up to 33°C (93°F). Additionally, December experiences significantly more precipitation, with 63 mm (2.5 in) over 11 days, compared to September's 39 mm (1.5 in) over just 5 days. Humidity also differs markedly, as December's relative humidity sits at a high 88%, in contrast to September's much drier 46%. For more detailed insights, check out the Mount Olympus weather in September.

In comparing the weather between October and December, we see a significant shift in temperature and conditions. October features milder temperatures, with a minimum of -21°C (-5°F) and a maximum reaching up to 25°C (78°F), resulting in an average of 7°C (45°F) and 51 mm (2.0 in) of precipitation over 8 days. In contrast, December experiences colder temperatures, with a minimum of -18°C (0°F), an average of -4°C (26°F), and a maximum of 11°C (53°F). The precipitation in December totals 63 mm (2.5 in) spread over 11 days, accompanied by a higher humidity level of 88%. This dramatic temperature drop and increased precipitation indicate the onset of winter conditions. For more details on October's weather, you can check Mount Olympus weather in October.

December weather shows a notable drop in average temperatures compared to November, with December averaging -4°C (26°F) against November's milder 2°C (36°F). While December can experience colder extremes, with minimum temperatures reaching -18°C (0°F), November's lows are slightly less severe at -17°C (1°F). Precipitation also increases in December, totaling 63 mm (2.5 in) over 11 days, compared to November's 48 mm (1.9 in) over just 8 days. Additionally, humidity rises slightly from 84% in November to 88% in December, contributing to a chillier atmosphere. For a more detailed look at November weather specifics, check out Mount Olympus weather in November.

Compare Mount Olympus's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Mount Olympus

As December unfolds on Mount Olympus, the weather transforms into a crisp winter wonderland that stands in stark contrast to the milder months preceding it. Temperatures dip significantly, with chilly averages settling around -4°C (26°F), and the scenery is often veiled in a soft blanket of snow, as precipitation reaches about 63 mm over the month. The increased humidity at 88% can make the air feel even more biting, especially during those brisk winter nights when temperatures can plummet to -18°C (0°F). This wintry shift not only enhances the mountain's natural beauty but also invites snow enthusiasts to embrace its magical landscape. For more insights into this captivating climate, explore Mount Olympus Climate.