December Weather in Manhattan, United States

Last updated: February 24, 2025

December in Manhattan presents a striking contrast of temperatures and weather conditions. With maximum daytime highs reaching a mild 18°C (64°F), the city experiences an average chill of 4°C (39°F), plunging to a brisk minimum of -11°C (13°F) during the coldest nights. Adding to the winter ambiance, the month sees a significant precipitation total of 106 mm (4.2 in) over approximately 10 days, contributing to the city’s festive charm amidst damp, 80% humidity levels. Embrace the cozy allure of Manhattan in December, where the crisp air and occasional snowfall set the scene for a truly magical holiday season.

December Temperature in Manhattan

In December, Manhattan experiences a notable chill as temperatures begin to plummet, marking the arrival of winter. The month averages around 4°C (39°F), with a minimum dip to -11°C (13°F) and a maximum reaching 18°C (64°F). This trend reflects the city’s transition from the milder temperatures of fall, where November's average rested at 8°C (47°F). As the year draws to a close, residents and visitors alike can expect crisper air and occasional frosty days, offering a picturesque backdrop of twinkling lights and festive cheer throughout the bustling streets of Manhattan.

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

The chart illustrates December temperature patterns in Manhattan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec343642526272787670604638
Data source: Temperature data for Manhattan 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 Manhattan

In December, Manhattan experiences a notable increase in precipitation, averaging 106 mm (4.2 in) over approximately 10 days. This places December among the wetter months of the year, following a trend where rainfall begins to pick up as the holiday season approaches. Compared to the preceding months, December’s precipitation aligns closely with the year-end surge, contrasting sharply with November's more modest 83 mm (3.3 in) over just 8 days. As temperatures drop, the mix of rain and occasional snow contributes to the season's atmosphere, while the frequency of rainy days remains consistent with the average seen throughout the fall, setting a cozy yet dynamic stage for winter festivities in the city.

December Precipitation Trends in Manhattan

The chart displays monthly precipitation patterns in Manhattan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6710298112114921481279212883106
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Manhattan

As winter settles in, December in Manhattan experiences a notable humidity level of 80%, which is slightly elevated compared to the previous month. This increase follows a trend observed throughout late fall, where humidity spiked to 82% in November. While humidity generally declines during the summer months—hitting a low of 62% in July—it gradually rises again as the city transitions into the cooler seasons. Compared to earlier months in the year, December's humidity is indicative of the cozy, yet crisp, winter air, setting the stage for Manhattan's festive atmosphere.

December Average Humidity in Manhattan

This chart illustrates the average monthly humidity levels in Manhattan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Manhattan

As winter settles in Manhattan, December ushers in a noticeable drop in UV exposure, with the UV Index at a low 2. This decrease signifies a gentler sun, allowing for a safer outdoor experience with a longer burn time of 45 minutes. Comparatively, the summer months showcase a stark contrast, where values peak at 10, indicating a very high risk of harm under the intense sun. Throughout the year, UV levels fluctuate significantly—starting from a moderate 3 in January to a thrilling 8 in April and May, before tapering back down in the chill of late fall and winter. With these variations, it’s essential for residents and visitors alike to stay informed about UV trends, especially during peak months. For more insights, check the full details at Manhattan UV Index.

Maximum UV Index Levels in Manhattan for December

The chart shows the monthly maximum UV Index (UVI) for Manhattan 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.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Manhattan 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 Manhattan

In December, Manhattan basks in 175 hours of sunshine, a festive farewell to the year that contrasts starkly with the summer months when sunlight peaks at 339 hours in July. As the seasons shift, a gradual decline in sunshine hours unfolds, starting from a vibrant 271 hours in May. Fall brings a gentle tapering off, with November seeing 208 hours before December's chill sets in. Though the days grow shorter and the temperatures drop, the city still enjoys a generous amount of sunlight, reminding us that even in winter, there’s warmth to be found amidst the bustling streets and holiday cheer.

Monthly Sunshine Duration in Manhattan: December Highlighted

The December sunshine duration represents the total number of hours Manhattan 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.
JanFebMarAprMayJunJulAugSepOctNovDec148h177h248h238h271h310h339h309h272h218h208h175h
Data source: Manhattan December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Manhattan During December

In December, Manhattan sees a 31% chance of sunny weather, reflecting a trend of lower sunshine probabilities as winter approaches. This percentage is among the lowest in the year, notably down from November's more promising 55%. January and February continue this trend, with only 48% and 31% chances of sun, respectively. As the city transitions through the year, the likelihood of clear skies dips significantly from the more temperate months of spring and fall, where chances often hover in the mid-40s. The cool December days remind residents that sunshine is a rare but cherished commodity in the heart of winter.

Percentage of Sunny Days in December in Manhattan

The chart illustrates the percentage of sunny days in Manhattan 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 Manhattan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%31%57%45%42%39%43%29%45%37%55%31%
Data source: Manhattan December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Manhattan in December

In Manhattan, December marks the return of shorter days, mirroring the daylight duration seen in both November and January with just 9 hours of sunlight. This consistent decline in daylight begins in late fall and continues through the winter months. As the year progresses from March's 11 hours to June's peak of 15 hours, a clear cycle emerges, showcasing the dramatic shift in daylight as nature transitions through the seasons. After the summer's long days, August and September see a gradual tapering off, leading back to the shorter days of early winter. While December’s limited sunlight may invite a certain coziness, it also serves as a reminder of the inevitable return to longer days as the new year unfolds.

Average Daylight Hours in Manhattan for December

The chart illustrates the variation in daylight duration in Manhattan throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 36m10h 39m11h 58m13h 19m14h 28m15h 2m14h 43m13h 42m12h 24m11h 3m9h 53m9h 17m
Data source: Manhattan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Manhattan

As December sweeps into Manhattan, the winds whisper at an average speed of 2.9 m/s (7 mph), marking a gentle breeze that is slightly calmer than the months preceding it. Throughout the year, the city's wind speeds exhibit a subtle decline, reaching their peak in March at 3.7 m/s (8 mph) before gradually tapering off as the winter months approach. This trend continues into December, where the transition to colder weather slows the wind’s pace, creating a serene yet invigorating atmosphere. With the festive season in full swing, the softer breezes of December invite New Yorkers to stroll through adorned streets, where each gust carries the twinkling cheer of the holiday season.

Average December Wind Speed in Manhattan

The chart displays monthly wind speed patterns in Manhattan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.53.43.73.43.32.82.62.53.13.13.12.9 m/s
Data source: Manhattan December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Manhattan Compares to Other Months

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

In December, temperatures in Manhattan range from a minimum of -11°C (13°F) to an average of 4°C (39°F), with a maximum of 18°C (64°F). The month sees significant precipitation of 106 mm (4.2 in) over approximately 10 days, and humidity levels hover around 80%. In contrast, January experiences colder conditions, with a minimum temperature plummeting to -18°C (-1°F) and an average of 1°C (34°F), while still reaching a maximum of 18°C (64°F). Precipitation decreases to 67 mm (2.7 in) over roughly 7 days, and humidity slightly increases to 84%. For more detailed information on January weather in Manhattan, you can refer to Manhattan weather in January.

In December, temperatures typically range from a chilly minimum of -11°C (13°F) to a mild maximum of 18°C (64°F), averaging around 4°C (39°F). The month sees about 106 mm (4.2 in) of precipitation over 10 days, with humidity levels averaging 80%. In contrast, February tends to be colder, with minimum temperatures dropping to -16°C (4°F) and maximums reaching 20°C (68°F), giving an average of 2°C (36°F). Precipitation is slightly lower at 102 mm (4.0 in), also spread over 10 days, while humidity rises to 82%. For a detailed look at what to expect, check out Manhattan weather in February.

December and March exhibit notable differences in weather patterns. December experiences cooler temperatures, with a minimum of -11°C (13°F) and an average of 4°C (39°F), while March sees slightly milder conditions, starting at a minimum of -9°C (16°F) and averaging 5°C (42°F). March also boasts a higher maximum temperature of 25°C (77°F) compared to December's peak of 18°C (64°F). Precipitation levels are somewhat comparable, with December receiving 106 mm (4.2 in) and March slightly less at 98 mm (3.8 in), both spread over about 10 days. Humidity remains relatively similar, at 80% for December and 81% for March, contributing to a distinct feel in each month. For more detailed information, you can check Manhattan weather in March.

December weather is characterized by chilly temperatures, with a minimum of -11°C (13°F) and an average around 4°C (39°F). While temperatures can rise to a maximum of 18°C (64°F), the month also sees substantial precipitation, totaling 106 mm (4.2 in) over about 10 days, accompanied by high humidity at 80%. In contrast, April brings a more temperate climate, with minimum temperatures sitting at -1°C (31°F) and an average of 11°C (52°F), peaking at 27°C (82°F). Precipitation slightly increases to 112 mm (4.4 in), occurring over 12 days, and the humidity is marginally lower at 78%. For a more detailed look at April weather, check out Manhattan weather in April.

December weather is characterized by colder temperatures, with a minimum of -11°C (13°F) and an average temperature of 4°C (39°F), while May brings much warmer conditions, featuring a minimum of 3°C (37°F) and an average of 17°C (62°F). The maximum temperatures in December can reach up to 18°C (64°F), in stark contrast to the higher maximum of 31°C (88°F) that May can experience. Precipitation levels are somewhat similar, with December seeing 106 mm (4.2 in) over approximately 10 days and May having slightly higher precipitation at 114 mm (4.5 in) across around 13 days. Additionally, December's humidity is relatively high at 80%, compared to May's lower humidity of 69%. For more detailed insights into May weather, you can check Manhattan weather in May.

In December, temperatures in Manhattan can range from a chilly -11°C (13°F) to a milder 18°C (64°F), with an average temperature of around 4°C (39°F). The month experiences approximately 106 mm (4.2 in) of precipitation over about 10 days, contributing to a high humidity level of 80%. In contrast, June brings a much warmer climate, with temperatures varying from a comfortable 10°C (50°F) to a scorching 35°C (94°F) and an average of 22°C (72°F). Although June has slightly less precipitation—around 92 mm (3.6 in)—it spans 13 days of rainfall, and the humidity is lower at 69%. For more details, you can check this link: Manhattan weather in June.

December and July present strikingly different weather patterns. In December, temperatures can drop as low as -11°C (13°F), with an average of 4°C (39°F), while the maximum temperature reaches 18°C (64°F). This month also experiences significant precipitation, with 106 mm (4.2 in) falling over about 10 days and humidity levels averaging 80%. In contrast, July brings much warmer conditions, featuring minimum temperatures around 17°C (62°F) and average highs of 26°C (78°F), peaking at 36°C (96°F). Although July is wetter, with 148 mm (5.8 in) of rain over 13 days, the humidity is lower at 62%. For a more detailed look at the July climate, visit Manhattan weather in July.

December weather is characterized by cold temperatures, with a minimum of -11°C (13°F) and an average of 4°C (39°F), while it can go up to 18°C (64°F) on milder days. Precipitation is moderate, with 106 mm (4.2 in) occurring over 10 days, and humidity remains high at around 80%. In contrast, August presents a much warmer climate, with temperatures ranging from a minimum of 16°C (61°F) to an average of 25°C (76°F), reaching a maximum of 34°C (93°F). Precipitation in August is slightly higher at 127 mm (5.0 in) across 14 days, but the humidity is lower at 65%. For more details, you can check out Manhattan weather in August.

December and September present vastly different weather experiences. In December, temperatures range from a chilly -11°C (13°F) at night to a mild 18°C (64°F) during the day, with an average of 4°C (39°F). This month sees about 106 mm (4.2 in) of precipitation over approximately 10 days and has a high humidity level of 80%. In contrast, September boasts much warmer conditions, with temperatures fluctuating between 9°C (49°F) at the lowest and peaking at 33°C (92°F), averaging around 21°C (70°F). The month receives slightly less rainfall at 92 mm (3.6 in) over about 9 days and features lower humidity levels at 68%. For a deeper insight into September's weather specifics, visit Manhattan weather in September.

In comparing the weather between October and December, a striking difference in temperature is evident. October experiences milder conditions with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 33°C (91°F) and an average of 16°C (61°F), while December sees a chillier atmosphere, with minimum temperatures plunging to -11°C (13°F) and an average of just 4°C (39°F). Precipitation levels are relatively comparable, with October receiving 128 mm (5.0 in) and December slightly less at 106 mm (4.2 in), both across 10 days of precipitation. Additionally, the humidity in December is higher at 80%, compared to October's 74%, contributing to a more pronounced dampness during the winter month. For more detailed insights into what to expect, you can check Manhattan weather in October.

December weather shows a notable drop in average temperatures compared to November, with minimums reaching -11°C (13°F) and maximums peaking at 18°C (64°F). In November, the minimum temperature is slightly warmer at -9°C (17°F), with a higher average maximum of 24°C (75°F). Precipitation also increases in December, totaling 106 mm (4.2 inches) over 10 days, compared to November's 83 mm (3.3 inches) spread over 8 days. Humidity levels remain relatively constant, with December at 80% and November at 82%. For a detailed look at November's conditions, check out Manhattan weather in November.

Compare Manhattan's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Manhattan

As December sweeps into Manhattan, the weather takes a noticeable turn, transforming the vibrant city into a winter wonderland. Temperatures drop significantly, with chilly days that average around 4°C (39°F) and can plunge as low as -11°C (13°F), setting the stage for that distinct winter chill. Precipitation, while moderate with about 106 mm (4.2 in) over roughly 10 days, often falls as a mix of rain and snow, adding to the season's charm. Factor in the high humidity levels of 80%, and you’ll experience the crispness in the air that’s unique to this month. December truly sets itself apart from other months, inviting residents and visitors alike to cozy up in cafés or explore the festive holiday spirit throughout the city. For a deeper dive into the seasonal shifts, check out Manhattan Climate.