Last updated: June 24, 2025
In East Harlem, United States, the average temperature in December hovers around 4°C (39°F). Expect a minimum drop to -11°C (13°F) and a pleasant maximum of 18°C (64°F). This month brings 106 mm (4.2 in) of precipitation spread across approximately 10 days, with an average humidity of 80%, making it a notably damp and chilly period.
In December in East Harlem, the average temperature is 4°C (39°F). Maximum temperatures can reach 18°C (64°F), while minimums can drop as low as -11°C (13°F). Travelers should be prepared for a wide range of temperatures and dress accordingly.
In East Harlem in December, the precipitation amount is 106 mm (4.2 in) over a span of 10 days.
In East Harlem in December, humidity is 80%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring extra layers to stay warm while navigating through the misty streets.
In East Harlem in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in East Harlem, you can visit Hourly UV Index in East Harlem.
UV Risk Categories
Weather in East Harlem varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in East Harlem, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 67 mm (2.7 inches) | 84% | moderate |
| February Weather | 2°C (36°F) | 102 mm (4.0 inches) | 82% | moderate |
| March Weather | 5°C (42°F) | 98 mm (3.8 inches) | 81% | high |
| April Weather | 11°C (52°F) | 112 mm (4.4 inches) | 78% | very high |
| May Weather | 17°C (62°F) | 114 mm (4.5 inches) | 69% | very high |
| June Weather | 22°C (72°F) | 92 mm (3.6 inches) | 69% | very high |
| July Weather | 26°C (78°F) | 148 mm (5.8 inches) | 62% | very high |
| August Weather | 25°C (76°F) | 127 mm (5.0 inches) | 65% | very high |
| September Weather | 21°C (70°F) | 92 mm (3.6 inches) | 68% | very high |
| October Weather | 16°C (61°F) | 128 mm (5.0 inches) | 74% | high |
| November Weather | 8°C (47°F) | 83 mm (3.3 inches) | 82% | moderate |
| December Weather | 4°C (39°F) | 106 mm (4.2 inches) | 80% | low |