December Weather in Potomac Park, United States

Last updated: February 24, 2025

Experience Potomac Park's December weather, where temperatures can swing dramatically from a mild maximum of 22°C (72°F) to a chilling minimum of -14°C (7°F). The month witnesses an average temperature of around 3°C (37°F), offering a crisp atmosphere perfect for winter activities. With precipitation measuring 85 mm (3.4 in) over 8 days, visitors can expect a mix of rain and possibly some snow, all while humidity levels hover around a refreshing 85%. Embrace the seasonal charm of Potomac Park as the landscape transforms under winter's embrace.

December Temperature in Potomac Park

In December, Potomac Park experiences a transitional chill as winter sets in, with temperatures showcasing a notable range. The month typically starts with a minimum temperature around -14°C (7°F), while the average hovers near 3°C (37°F), reflecting the crispness in the air. The maximum temperature can reach up to 22°C (72°F) on milder days, hinting at a surprising warmth that contrasts the cold nights. This pattern of fluctuating temperatures signals the onset of winter, characterized by brisk days and frosty nights, making December an intriguing month for those who enjoy the beauty of the season's chill while still seeking occasional warmth. Overall, December acts as a bridge between the biting cold of winter and the lingering warmth of fall, offering a unique climate experience in Potomac Park.

December Weather in Potomac Park: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Potomac Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec333743536371777568584337
Data source: Temperature data for Potomac Park 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 Potomac Park

In Potomac Park, December typically ushers in a transition period characterized by moderate precipitation, with an average of 85 mm (3.4 in) falling across 8 days. This amount places December among the wetter months, following a trend seen in the fall when rainfall is generally more abundant, particularly in September with 114 mm (4.5 in). Interestingly, December's precipitation stabilizes after the dip in November, which recorded just 59 mm (2.3 in) over the same number of days. As the year wraps up, December's relatively consistent rainfall contributes to the area's lush winter landscape, emphasizing a contrast to the drier summer months like July, which saw only 60 mm (2.4 in). The overall pattern suggests a gradual increase in precipitation leading into the winter months, enhancing Potomac Park's seasonal charm.

December Precipitation Trends in Potomac Park

The chart displays monthly precipitation patterns in Potomac Park, 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.
JanFebMarAprMayJunJulAugSepOctNovDec61957795114836068114935985
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Potomac Park

In Potomac Park, December wraps up the year with a humidity level of 85%, maintaining a relatively high moisture content that is characteristic of the winter months. Over the year, humidity remains notably elevated during winter, as seen from January to March, consistently hovering around 86%. A gradual decline is observed as spring approaches, with April's humidity at 84%, before dipping further to 78% in May as warmer temperatures arrive. Summer brings a refreshing drop, with July reaching its lowest at 70%, followed by August's 59%—the driest month of the year. However, as autumn sets in, humidity rises again, peaking in November at 86% before a slight decrease in December, signaling the cyclical nature of Potomac Park's climate.

December Average Humidity in Potomac Park

This chart illustrates the average monthly humidity levels in Potomac Park, 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.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Potomac Park

As we transition into December in Potomac Park, the UV Index drops to 3, falling within the moderate exposure category. This reduction in UV radiation signals a more forgiving environment, allowing for extended outdoor activities with a burn time of 30 minutes. This trend of decreasing UV levels becomes evident as the year progresses; following several months of intense very high UV Index readings peaking at 10, which required caution for sun exposure. The December figures reflect a comforting return to safer conditions, reminiscent of January's moderate levels. For optimal sun safety throughout the year, check out the detailed information at Potomac Park UV Index.

Maximum UV Index Levels in Potomac Park for December

The chart shows the monthly maximum UV Index (UVI) for Potomac Park 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.
JanFebMarAprMayJunJulAugSepOctNovDec35710101010108753
Data source: Potomac Park 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 Potomac Park

December in Potomac Park brings a gentle reprieve from the intense summer sun, offering 172 hours of daylight that hint at the quieter beauty of winter. As the year unfolds, it's interesting to note how sunshine peaks during the vibrant summer months, reaching a high of 348 hours in July before gradually tapering off in the cooler seasons. The steady decline in sunlight from the summer's end through to December showcases a natural rhythm, with hours of sunlight dropping from 309 in August to their winter lows. Despite the shorter days, December still holds its charm, inviting residents and visitors to savor the crisp air and soft, golden light that lingers during holiday festivities.

Monthly Sunshine Duration in Potomac Park: December Highlighted

The December sunshine duration represents the total number of hours Potomac Park 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.
JanFebMarAprMayJunJulAugSepOctNovDec129h162h245h245h264h301h348h309h274h232h202h172h
Data source: Potomac Park December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Potomac Park During December

In Potomac Park, December brings a notably lower chance of sunny weather, with only 36% likelihood of sunshine, making it one of the less cheerful months in terms of clear skies. This trend continues from November, which saw a more promising 49% chance, suggesting a slight dip as winter settles in. Interestingly, the chances for sunshine in December are similar to the early winter months of January (37%) and February (24%), which typically experience more cloud cover. While early spring* offers brighter prospects, peaking in March at 51%, December's shorter days and cooler temperatures remind us that the region’s sunniest moments are still a few months away.

Percentage of Sunny Days in December in Potomac Park

The chart illustrates the percentage of sunny days in Potomac Park 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 Potomac Park experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec37%24%51%45%39%39%51%39%52%38%49%36%
Data source: Potomac Park December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Potomac Park in December

In Potomac Park, December brings a notable shift in daylight, as the hours of sunlight rest at just 9 hours—a continuation from November's similar duration. This pattern marks a distinct seasonal trend, where the year transitions from the longer days of summer, peaking at 14 hours in June and July, to the shorter daylight periods typical of winter. As the months progress from November to December, the gradual decline in daylight signifies the approach of winter, setting the stage for the longer nights that characterize this season. Interestingly, daylight begins to increase again in January, hinting at the slow return of longer days as the year unfolds.

Average Daylight Hours in Potomac Park for December

The chart illustrates the variation in daylight duration in Potomac Park throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 43m10h 42m11h 58m13h 16m14h 21m14h 54m14h 36m13h 38m12h 23m11h 6m9h 58m9h 24m
Data source: Potomac Park daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Potomac Park

As December settles in Potomac Park, the average wind speed gently lingers at 2.5 m/s (6 mph), matching the slightly chillier November breeze. This marks a subtle increase from the languid summer months, where wind speeds dipped as low as 1.7 m/s (4 mph) in August, highlighting a seasonal transition towards more dynamic air movement. Interestingly, the wind picks up towards the spring, reaching peak speeds of 3.0 m/s (7 mph) in April, before gradually softening again. This annual rhythm reflects a nature in flux, offering a taste of winter’s crisp air while foreshadowing the revitalizing gusts of spring that await just around the corner. As you stroll through the park, you can almost feel this medley of seasons translating the whispers of nature into a serene and inviting atmosphere.

Average December Wind Speed in Potomac Park

The chart displays monthly wind speed patterns in Potomac Park, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.72.93.02.32.02.21.72.32.32.52.5 m/s
Data source: Potomac Park December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Potomac Park Compares to Other Months

The weather in Potomac Park 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 Potomac Park and find detailed weather information for every month.

In December, temperatures in Potomac Park range from a chilly minimum of -14°C (7°F) to a milder average of 3°C (37°F), with occasional peaks reaching up to 22°C (72°F). The month experiences a total precipitation of 85 mm (3.4 in) over 8 days, and humidity hovers around 85%. In contrast, January brings even colder weather, with minimum temperatures plummeting to -27°C (-16°F) and an average temperature of 0°C (33°F). The maximum temperature remains slightly lower at 20°C (69°F). Precipitation decreases to 61 mm (2.4 in) over 7 days, while humidity rises slightly to 86%. For more detailed information, you can visit Potomac Park weather in January.

In December, temperatures range from a chilly minimum of -14°C (7°F) to a pleasant maximum of 22°C (72°F), with an average temperature settling at around 3°C (37°F). The month experiences about 85 mm (3.4 in) of precipitation over approximately 8 days and maintains a humidity level of 85%. In contrast, February sees slightly colder temperatures, with minimums dropping to -18°C (-1°F) and maximums peaking at 27°C (80°F), yet the average remains the same at 3°C (37°F). Precipitation increases to 95 mm (3.8 in) and occurs on about 11 days, resulting in a slightly higher humidity of 86%. For a closer look at the weather patterns in February, check out Potomac Park weather in February.

In December, temperatures can drop to a minimum of -14°C (7°F), with an average temperature of around 3°C (37°F) and a maximum of 22°C (72°F). The month experiences 85 mm (3.4 in) of precipitation over about 8 days, with humidity levels sitting at a high 85%. In contrast, March presents slightly colder temperatures, recording a minimum of -17°C (2°F) and an average of 6°C (43°F), while reaching a maximum of 24°C (76°F). Precipitation in March is slightly lower at 77 mm (3.0 in) over 10 days, with humidity marginally higher at 86%. For a detailed look at March weather, check out Potomac Park weather in March.

December and April exhibit notably different weather patterns, reflecting the transition from winter to spring. In December, temperatures can plummet as low as -14°C (7°F), with an average high of 3°C (37°F) and occasional peaks reaching up to 22°C (72°F). The month sees a total precipitation of 85 mm (3.4 in) over about 8 days, accompanied by high humidity levels averaging 85%. In contrast, April offers a milder climate, with minimum temperatures around -6°C (22°F) and an average high of 12°C (53°F), soaring to a maximum of 31°C (87°F) on warmer days. Precipitation increases slightly to 95 mm (3.8 in) spread across 12 days, while humidity stays relatively consistent at 84%. For more detailed information, you can check Potomac Park weather in April.

December and May present contrasting weather patterns. In December, temperatures can plummet to a minimum of -14°C (7°F) and average around 3°C (37°F), with a maximum reaching 22°C (72°F). The month sees an average precipitation of 85 mm (3.4 in) over about 8 days, coupled with high humidity at 85%. In stark contrast, May experiences milder conditions with minimum temperatures of -1°C (31°F) and an average of 17°C (63°F), peaking at a comfortable 31°C (89°F). Precipitation rises to 114 mm (4.5 in) spread across 14 days, while humidity decreases to 78%. For a detailed outlook, you can check Potomac Park weather in May.

December and June present a stark contrast in weather patterns. In December, temperatures can plunge as low as -14°C (7°F) and generally hover around an average of 3°C (37°F), with occasional peaks reaching 22°C (72°F). The month sees an average of 85 mm (3.4 in) of precipitation over 8 days, coupled with high humidity levels of 85%. In contrast, June enjoys a milder climate with minimum temperatures of 5°C (42°F) and an average of 22°C (71°F), soaring to a maximum of 35°C (95°F). Precipitation is also similar, with 83 mm (3.3 in) spread across 10 days and slightly lower humidity at 79%. For a closer look at weather specifics, you can check out Potomac Park weather in June.

In December, temperatures can be quite cold, ranging from a frigid minimum of -14°C (7°F) to a pleasant maximum of 22°C (72°F), with an average around 3°C (37°F). The month tends to be damp, experiencing 85 mm (3.4 in) of precipitation over about 8 days, accompanied by high humidity levels of 85%. In contrast, July brings much warmer weather, with temperatures ranging from a minimum of 12°C (54°F) to a scorching maximum of 37°C (99°F) and an average of 25°C (78°F). This summer month sees less precipitation, totaling 60 mm (2.4 in) over the same number of rainy days, but with lower humidity at 70%. For more details about July conditions, check out Potomac Park weather in July.

In December, the weather is significantly colder, with temperatures ranging from a frigid minimum of -14°C (7°F) to a maximum of 22°C (72°F) and an average of 3°C (37°F). The month experiences about 85 mm (3.4 in) of precipitation over roughly 8 days and a high humidity level of 85%. In contrast, August boasts warmer conditions, where temperatures typically range from a minimum of 10°C (50°F) to a maximum of 36°C (97°F), with an average of 24°C (75°F). While it has slightly less precipitation at 68 mm (2.7 in) over 12 days, the humidity is notably lower at 59%. For more detailed information on August weather, you can visit Potomac Park weather in August.

When comparing the weather in December and September, notable differences emerge. December experiences much colder temperatures, with a minimum of -14°C (7°F) and an average of just 3°C (37°F), while September boasts a much milder climate with averages around 20°C (69°F) and maximums reaching 35°C (96°F). Precipitation levels are also different; December records 85 mm (3.4 in) of rain over 8 days, whereas September has slightly more at 114 mm (4.5 in) and 9 rainy days. Additionally, December's higher humidity levels at 85% contribute to a chillier feel compared to September's more comfortable 68% humidity. For a more detailed look at the weather specifics in September, you can visit Potomac Park weather in September.

In comparing the weather of December and October, a notable difference in temperatures is evident. December experiences a wider range, with minimum temperatures dipping as low as -14°C (7°F) and averaging around 3°C (37°F), while October's temperatures range from a minimum of -2°C (28°F) to an average of 14°C (58°F), peaking at a maximum of 33°C (92°F). Precipitation levels are fairly similar, with December receiving 85 mm (3.4 in) and October slightly higher at 93 mm (3.7 in), both over approximately 8 days. Humidity is marginally higher in December at 85%, compared to October's 80%. For a detailed look at October's weather, you can check out Potomac Park weather in October.

In December, temperatures range more widely, with a minimum of -14°C (7°F), an average of 3°C (37°F), and a maximum of 22°C (72°F), compared to November's milder minimum of -9°C (17°F), average of 6°C (43°F), and maximum of 25°C (77°F). Precipitation increases slightly in December to 85 mm (3.4 in) over 8 days, while November receives less, totaling 59 mm (2.3 in) over 7 days. Humidity remains high in both months, slightly higher in November at 86% versus December's 85%. For more detailed information, you can check Potomac Park weather in November.

Compare Potomac Park's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Potomac Park

December in Potomac Park brings a distinct chill compared to other months, with temperatures dipping down significantly and a notable increase in precipitation. Characterized by its cool, damp climate, this month sees an intriguing mix of brisk days and chilly nights, making it a stark contrast to the warmer seasons. The elevated humidity levels add to the wintery feel, creating a cozy atmosphere perfect for holiday gatherings. With its blend of seasonal beauty and the potential for winter weather, December is a captivating time to explore Potomac Park. For more insights into the weather patterns, visit Potomac Park Climate.