December Weather in Mariposa, United States

Last updated: February 24, 2025

December in Mariposa, United States, showcases a chilly climate marked by a maximum temperature of 23°C (74°F) and an average temperature of 8°C (47°F), dipping as low as -2°C (29°F). This month also witnesses a significant amount of precipitation, totaling 123 mm (4.9 in) over 9 days, contributing to the region's lush winter landscape. The humidity levels hover around a notable 80%, creating a crisp, fresh atmosphere that characterizes the beauty of Mariposa during this season.

December Temperature in Mariposa

In December, Mariposa, United States experiences a noticeable transition as temperatures dip from the mild autumn into the chill of winter. The month opens with a minimum of -2°C (29°F), contrasting sharply with warmer summer months, and reaches an average of 8°C (47°F). Daytime highs can still be pleasantly warm, peaking at 23°C (74°F), allowing for those crisp winter days infused with sunshine. This seasonal shift signifies a gradual decline in temperatures as the year comes to a close, setting the stage for a cozy winter atmosphere that invites both locals and visitors to embrace the beauty of the season.

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

The chart illustrates December temperature patterns in Mariposa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec474851586475828174635446
Data source: Temperature data for Mariposa 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 Mariposa

In December, Mariposa experiences a noticeable shift as precipitation makes a return, with 123 mm (4.9 in) of rainfall recorded over 9 days. This month marks a significant increase compared to the drier summer months, which saw virtually no precipitation. The winter season typically brings more consistent weather patterns, driving the increase from November’s 64 mm and hinting at a trend of elevated rainfall as the year comes to a close. Interestingly, while December doesn't match the highest monthly totals seen earlier in the year, it signals a promising start to winter—one where the landscape is rejuvenated by the much-needed moisture, setting the stage for the wet months to follow.

December Precipitation Trends in Mariposa

The chart displays monthly precipitation patterns in Mariposa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec169157181674120123164123
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Mariposa

As December arrives in Mariposa, the humidity begins to rise again, reaching 80% after a dip during the summer months. The trend showcases a gradual decrease in humidity from 84% in February to a low of 54% in August, illustrating the dry heat typical of summer. As fall sets in, humidity experiences a resurgence, peaking again in January. The cyclical nature of humidity levels highlights the transitional climate of Mariposa, where cooler winters usher in higher moisture levels, contrasting sharply with the arid spells of the warmer months.

December Average Humidity in Mariposa

This chart illustrates the average monthly humidity levels in Mariposa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mariposa

As the year winds down, December in Mariposa, United States brings a UV Index of 3, categorizing sun exposure as moderate with a burn time of 30 minutes. This marks a noticeable decline from the extreme levels experienced in the summer months, where indices peaked at 12 in June and maintained high levels through August. From the beginning of the year, the UV Index gradually rises, peaking in May and June before tapering off again in the fall. This trend demonstrates a seasonal fluctuation in UV exposure that is essential for residents and visitors to consider for sun safety. For detailed information and updates, check out Mariposa UV Index.

Maximum UV Index Levels in Mariposa for December

The chart shows the monthly maximum UV Index (UVI) for Mariposa 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.
JanFebMarAprMayJunJulAugSepOctNovDec4589111211119753
Data source: Mariposa 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 Mariposa

In Mariposa, United States, December offers a welcoming 204 hours of sunshine, providing a gentle transition into winter. As the year unfolds, there is a notable upward trend in sunlight hours from January's 161 to a peak in July with 390 hours, showcasing the region's vibrant summer. The sunny disposition gradually wanes through the autumn months, with November dipping to 235 hours, but December still retains a significant amount of sunshine for outdoor activities. This seasonal rhythm not only enhances the charm of Mariposa during the holiday season but also highlights the area’s appealing climate throughout the year.

Monthly Sunshine Duration in Mariposa: December Highlighted

The December sunshine duration represents the total number of hours Mariposa 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.
JanFebMarAprMayJunJulAugSepOctNovDec161h215h258h309h359h385h390h362h319h290h235h204h
Data source: Mariposa December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mariposa During December

In Mariposa, the likelihood of sunny weather takes a noticeable dip in December, falling to 43%. This decline is part of a broader trend where the chances of sunshine decrease as the year winds down, with October and November seeing slightly higher probabilities at 66% and 68%, respectively. While the region enjoys plenty of sun during the earlier months, hitting a high of 97% in August, December's overcast skies signal the start of winter. Exploring the year as a whole illustrates a clear seasonal pattern, with sunshine peaking in the spring and summer, only to wane as the cooler months arrive.

Percentage of Sunny Days in December in Mariposa

The chart illustrates the percentage of sunny days in Mariposa 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 Mariposa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%59%59%75%87%88%83%97%92%66%68%43%
Data source: Mariposa December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mariposa in December

In Mariposa, United States, the daylight duration experiences a clear seasonal rhythm throughout the year. Starting with just 9 hours in December, the daylight gradually increases each month, peaking at a vibrant 14 hours during the summer months of May, June, and July. As fall approaches, the sunlight begins to wane, with October showing 11 hours, followed by a return to shorter days in November and back to 9 hours by the end of December. This gentle ebb and flow of sunlight not only reflects the changing seasons but also invites residents and visitors alike to embrace the unique beauty each period brings to the landscape.

Average Daylight Hours in Mariposa for December

The chart illustrates the variation in daylight duration in Mariposa throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 53m10h 48m11h 59m13h 11m14h 12m14h 42m14h 25m13h 31m12h 22m11h 10m10h 7m9h 36m
Data source: Mariposa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Mariposa

In Mariposa, United States, the December wind brings a gentle breeze, averaging around 2.0 m/s (4 mph). As winter settles in, winds show a slight increase compared to the preceding months, with November recording its calmest average of 1.5 m/s (3 mph). This trend of moderate wind speeds throughout the year, peaking at 2.2 m/s (5 mph) in May, suggests a generally tranquil climate. While the winds are mild, December's consistency reinforces the serene charm of Mariposa during the cooler months, where crisp air harmoniously combines with the peaceful landscape, inviting locals and visitors alike to embrace the beauty of the season.

Average December Wind Speed in Mariposa

The chart displays monthly wind speed patterns in Mariposa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.91.71.91.92.22.12.01.91.92.01.52.0 m/s
Data source: Mariposa December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Mariposa Compares to Other Months

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

December and January present a noticeable shift in weather patterns. Both months have similar average temperatures, with December slightly warmer at a minimum of -2°C (29°F) compared to January’s -4°C (25°F). When it comes to precipitation, January is wetter, receiving 168 mm (6.6 in) over 8 days, while December sees 123 mm (4.9 in) spread across 9 days. Additionally, humidity levels are slightly higher in January at 82%, compared to 80% in December. For a detailed look at January weather, refer to Mariposa weather in January.

When comparing the weather in December and February, both months exhibit notable temperature variations. December's temperatures range from a chilly minimum of -2°C (29°F) to a pleasant average of 8°C (47°F), with highs reaching up to 23°C (74°F). In contrast, February experiences slightly cooler minimum temperatures at -7°C (20°F), but has a comparable average of 9°C (48°F) and a maximum that reaches 25°C (77°F). Additionally, February brings increased precipitation, totaling 157 mm (6.2 inches) over nine days, compared to December's 123 mm (4.9 inches) over the same number of days. Moreover, February’s humidity is slightly higher, averaging 84% as opposed to December's 80%. For more detailed insights, you can check Mariposa weather in February.

In December, temperatures vary from a chilly minimum of -2°C (29°F) to a maximum of 23°C (74°F), with an average of 8°C (47°F) and relatively high humidity at 80%. The month experiences around 123 mm (4.9 in) of precipitation over approximately 9 days. In contrast, March brings slightly colder minimum temperatures at -4°C (25°F), but averages 11°C (51°F) and peaks at a warmer 27°C (81°F). Precipitation increases to 181 mm (7.1 in) over 12 days, accompanied by a similar humidity level of 82%. For more detailed weather insights, check out Mariposa weather in March.

In December, the weather tends to be cooler, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 23°C (74°F), averaging around 8°C (47°F). The month is characterized by higher precipitation levels, totaling 123 mm (4.9 in) over approximately 9 days, and the humidity hovers around 80%. Conversely, April experiences a notable warming trend, with minimum temperatures still at -2°C (30°F) but a significantly higher average of 14°C (58°F) and a peak of 30°C (87°F). Precipitation is also lower in April at 67 mm (2.6 in) spread across just 5 days, and humidity drops slightly to 78%. For more detailed information, you can refer to Mariposa weather in April.

December and May present starkly different weather patterns. In December, temperatures range from a chilly -2°C (29°F) at night to a comfortable 23°C (74°F) during the day, with an average of 8°C (47°F). The month experiences significant precipitation, totaling 123 mm (4.9 in) over approximately 9 days, coupled with a high humidity level of 80%. In contrast, May offers a more temperate climate, with nighttime lows of 3°C (38°F) and highs soaring to 36°C (97°F), averaging around 18°C (64°F). Rainfall is markedly less in May, with only 41 mm (1.6 in) across about 3 days and humidity dropping to 71%. For a closer look at the conditions in May, check out Mariposa weather in May.

In December, the weather is quite chilly, with average temperatures ranging from a low of -2°C (29°F) to a comfortable maximum of 23°C (74°F). This month also sees significant precipitation, totaling about 123 mm (4.9 in) over approximately 9 days, coupled with a high humidity level of 80%. In contrast, June offers a much warmer climate, where temperatures can soar from a minimum of 7°C (45°F) to a scorching high of 40°C (105°F). Precipitation is rare in June, with only 2 mm (0.1 in) recorded over the entire month and no rainfall days, along with lower humidity at 64%. For a more detailed look at what to expect in June, you can refer to Mariposa weather in June.

December and July present stark contrasts in weather patterns. In December, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable average of 8°C (47°F), peaking at a maximum of 23°C (74°F). The month is characterized by significant precipitation, accumulating to 123 mm (4.9 in) over approximately 9 days, and high humidity levels at 80%. In stark contrast, July boasts much warmer conditions, with temperatures fluctuating from a mild minimum of 14°C (58°F) to an average of 28°C (82°F), and soaring to a scorching maximum of 41°C (106°F). Notably, July is exceptionally dry, recording no precipitation and maintaining a lower humidity level of 58%. These differences highlight the seasonal extremes, making December a month for cozying up indoors while July invites outdoor activities. For a closer look at July's weather patterns, check out Mariposa weather in July.

When comparing the weather in December and August, there is a stark contrast in both temperature and precipitation. December experiences a wide range of temperatures, with a minimum of -2°C (29°F) and a maximum of 23°C (74°F), averaging around 8°C (47°F), while August boasts much warmer conditions, with temperatures ranging from a minimum of 14°C (58°F) to a scorching maximum of 41°C (107°F) and an average of 27°C (81°F). Precipitation is also significantly more frequent in December, with 123 mm (4.9 in) over 9 days, compared to August, which sees almost no rain at just 1 mm (0.0 in) and zero rainy days. Furthermore, December's humidity levels remain higher at 80%, while August's humidity is notably lower at 54%. For more details about the weather during this summer month, you can check Mariposa weather in August.

When comparing the weather in December and September, there's a stark contrast in temperatures and precipitation levels. December experiences a range of temperatures from a chilly minimum of -2°C (29°F) to a milder maximum of 23°C (74°F), with an average of 8°C (47°F). In addition, the month is marked by significant rainfall, totaling 123 mm (4.9 in) over 9 days and high humidity at 80%. In contrast, September boasts much warmer temperatures, with a minimum of 7°C (45°F), an average of 23°C (74°F), and a scorching maximum of 41°C (106°F). Precipitation is minimal in September, with only 2 mm (0.1 in) and no rainy days, alongside lower humidity at 55%. For a more detailed look at September's weather, you can visit Mariposa weather in September.

In December, temperatures range significantly, with a minimum of -2°C (29°F) and a maximum of 23°C (74°F), averaging around 8°C (47°F). The month sees much more precipitation, totaling 123 mm (4.9 in) over approximately 9 days, contributing to a higher humidity level of 80%. In contrast, October offers milder weather, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 34°C (93°F) and an average of 17°C (63°F). The month is notably drier, with only 31 mm (1.2 in) of precipitation occurring on just 1 day, resulting in a lower humidity of 62%. For a more detailed look at October weather, visit Mariposa weather in October.

Comparing the weather in December to November reveals notable differences in temperature and precipitation. In December, the minimum temperature is slightly higher at -2°C (29°F), while the average temperature drops to 8°C (47°F), and the maximum reaches 23°C (74°F). This contrasts with November, which has a lower minimum of -3°C (28°F) but a higher average of 12°C (54°F) and a maximum of 27°C (82°F). Precipitation also increases significantly in December, with 123 mm (4.9 in) over 9 days, compared to only 64 mm (2.5 in) over 4 days in November. Humidity remains relatively consistent, with December at 80% and November at 78%. For more details on November weather patterns, check out Mariposa weather in November.

Compare Mariposa's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Mariposa

As December rolls into Mariposa, the weather experiences a notable shift compared to other months. Temperatures gently cool, with daytime highs peaking at a comfortable 23°C (74°F) and nightly lows dipping, reminding us that winter is just around the corner. Precipitation increases, bringing about 123 mm (4.9 in) over roughly nine days, which contributes to the lushly vibrant landscape that defines the region. With humidity levels hovering around 80%, the air becomes a bit crisp, creating a refreshing atmosphere perfect for enjoying the serene beauty of winter in Mariposa. For a deeper look into the year-round climate of this stunning area, explore Mariposa Climate.